Managed XDR

vtdl_1788754207_idl68axd (Remcos) — malware analysis report

File info

Filename
vtdl_1788754207_idl68axd
File type
Composite Document File V2 Document, No summary info
File size
261 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
e17e05c9e41ded1f7b202cf89ba91a34c89655bf
SHA256
b603ef7af0d8ff0846c7f240eaefdd8ccc8c9fbf35b16ba1582664ac45cd7fe7
MD5
c9f577720de7bc66cee039c5bc7b709f

Malwares

  • Remcos

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
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

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562 dep_disable: Disables DEP
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.004 compiles_code: Compiles C# code
T1497.002 antisandbox_foregroundwindows: Checks whether any human activity is being performed by constantly checking whether the foreground window has changed
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1027.001 static_overlay_padding: Overlay contents padding
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497.002 antisandbox_foregroundwindows: Checks whether any human activity is being performed by constantly checking whether the foreground window has changed
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)
T1115 checks_clipboard: Monitors clipboard data

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1102.003 references_google: Contains links to cloud services of Google (potentially for malicious payload delivery)

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
ce_info: Remcos Configuration Data found
network_bind: Starts servers listening at None
dns_without_resolve: DNS query without a response
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
dotnet_suspicious_module_name: Dotnet program has suspicious module name
creates_suspended_process: Creates suspended process
static_compression_ratio: Very high compression ratio of a file
creates_in_programdata: Creates files in the ProgramData directory
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint
static_big_overlay: Executable file contains an enormously big overlay

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