Managed XDR

vtdl_1787564783_7lcp_nxw (Dharma, Sodinokibi, Hermes) — malware analysis report

File info

Filename
vtdl_1787564783_7lcp_nxw
File type
RAR archive data, v79, flags: Archive volume, Commented,
File size
18.8 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
d2542528a6ea653ce6b69fb4e6e8254e45c9bb24
SHA256
58e30f939535c1c2d65fbab197f4a6816931522b8513d8261154eb86f6e28579
MD5
be4e87444b469c24ae7b2ef8b0c37bfe

Malwares

  • Dharma
  • Sodinokibi
  • Hermes

Signatures

Execution

T1059.003 suspicious_cmd_process: Cmd.exe without commandline launches a new process
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1027.002 packer_vmprotect: Executable file is likely compressed using VMProtect
T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1497.001 antivm_generic_cpu: Checks the CPU name, possibly for anti-virtualization
T1027.002 decompress_pefile: Unpacks a PE file into memory
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1140 decompress_pefile: Unpacks a PE file into memory
T1564.001 stealth_file: Creates hidden or system files
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1027.002 packer_upx: The executable file is compressed using UPX
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1027.002 packer_aspack: Executable file is packed with ASPack
T1027.002 nsis_archive: One of the packages is NSIS archive
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1036.001 invalid_authenticode: Digital signature of one or several attached files has failed to be verified
T1480 system_default_lang_id_present: Checks the system language
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Credential Access

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1552 infostealer_mail: Collects personal data from local email clients
T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1552 cookie_files: Accesses cookie files

Discovery

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1497.001 antivm_generic_cpu: Checks the CPU name, possibly for anti-virtualization
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1082 has_wmi: Executes one or several WMI requests
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name

Collection

T1114 infostealer_mail: Collects personal data from local email clients
T1074.001 access_recyclebin: Manipulation with recyclebin detected

Command and Control

T1568.002 dga_domains: Connects to DGA domains
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Exfiltration

T1022 encrypts_pc_info: Collects and encrypts information about the computer (possibly for exfiltration)

Impact

T1486 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1561 wiper_zeroed_bytes: Overwrites multiple files with zero bytes (hex 00)
T1485 deletes_files: Removes 500 or more files from C: drive
T1486 ransomware_files: Ransomware indicators detected Hermes (creates keys and the instruction on how to unlock the files)
T1486 ransomware_files_2: Ransomware(s) Hermes indicators detected (creates keys and the instruction on how to unlock the files)
T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
ce_info: REvil config Configuration Data found
revil: Ransomware REvil indicators detected
ransomware_dharma: Detected Dharma ransomware
static_pe_anomaly: The PE file structure contains anomalies
creates_in_windows: Creates files in the Windows directory
runs_utility_without_cmdline: Runs system utility without arguments (non-typical usage)
copies_self: Creates a copy of itself
creates_exe: Creates executable files in the file system
dns_without_resolve: DNS query without a response
create_rpc_bindings: Creates RPC connection
require_administrator: Requests administrator privileges
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay
js_suspicious: Suspicious javascript
many_files_in_archive: The archive contains more than 5 files

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