Managed XDR

client_mailer.exe (TrickBot) — malware analysis report

File info

Filename
client_mailer.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
3.4 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
cd19cb45f8f5090c41e492d21baa3836d26ca24c
SHA256
c4559ed8b9b6cd150628c2687b6c20f26a418c6b9b8a20a7b3b73295224561c0
MD5
253c46d87473f997be4170afb1379ca8

Malwares

  • TrickBot

Signatures

Execution

T1059.003 suspicious_batch: Suspicious batch

Privilege Escalation

T1055.012 injection_runpe: Injects code into another process
T1055 sets_debug_registers: Sets debug registers for a thread in a different 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

T1070.004 deletes_self: Moves to different location or removes the original executable file
T1055.012 injection_runpe: Injects code into another process
T1055 sets_debug_registers: Sets debug registers for a thread in a different process
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
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
T1070 stealth_window: A process created a hidden window

Discovery

T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
T1016.001 system_network_configuration_discovery: System network configuration discovery detected
T1082 fingerprint_to_file: Collects data about system and user and writes it to a text file

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
dead_host: Connects to IP addresses that do not respond to requests
no_graphical_activity: No graphic activity
creates_suspended_process: Creates suspended process

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