Managed XDR

vtdl_g79rzp2y (FormBookFormgrabber) — malware analysis report

File info

Filename
vtdl_g79rzp2y
File type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
File size
23.3 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
6520db935d6bbd0a13520319a0124343f794b8e7
SHA256
c0909e73002c722caeb3956404698e7ccd64ce462bcc5f758b7291cea6f6cecd
MD5
321b5c3643cdde1fa1f99f4ab7549b1d

Malwares

  • FormBookFormgrabber

Signatures

Execution

T1559 suricata_alert: Malicious traffic detected
T1559 creates_exe: Creates executable files in the file system
T1559 suspicious_process: Spawns a suspicious process
T1559 no_graphical_activity: No graphic activity
T1559 creates_in_programdata: Creates files in the ProgramData directory
T1559 get_sid_domain: Get user's SID
T1559 accesses_mailslot: Performs a Mailslot ping, possibly used to get Domain Controller information
T1559 test_check_service: Starts services
T1559 create_rpc_bindings: Creates RPC connection
T1559 checktokenmembership: Checks user token with CheckTokenMembership call
T1559 has_pdb: This executable file has a PDB path

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1055 injection_runpe_2: Executes injected code in another process
T1055.012 injection_runpe: Injects code into another process
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1055 injection_runpe_2: Executes injected code in another process
T1055.012 injection_runpe: Injects code into another process
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1036.001 invalid_authenticode: Digital signature of the executable file has failed the verification
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1218 bypass_dev_utils: Executing .NET utility in a suspended state, potentially for injection
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497.001 antivm_network_adapters: Checks NIC addresses
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Collection

T1114 infostealer_mail: Collects personal data from local email clients
T1115 checks_clipboard: Monitors clipboard data

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
pe_overlay: PE file contains overlay
get_memory_status: Gets information about the virtual and physical memory of the system
get_username: Gets username

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