Managed XDR

vtdl_1744892568_fzaahfhe (Cobalt Strike) — malware analysis report

File info

Filename
vtdl_1744892568_fzaahfhe
File type
MS Windows shortcut, Has Description string, Has command line arguments, Icon number=11, ctime=Thu Apr 17 07:35:57 2025, mtime=Thu Apr 17 07:35:57 2025, atime=Thu Apr 17 07:35:57 2025, length=0, window=hidenormalshowminimized
File size
1 MB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
1a39f995e95efe89c8e86b1becd91b204fc4d253
SHA256
a266d024a08281eb5b5894be5ea5eb3dcd2fa6c4b727bd2dfadba0713425f53d
MD5
2a926b4c400f9e041c52b41343d50425

Malwares

  • Cobalt Strike

Signatures

Execution

T1204 suspicious_lnk: LNK file with suspicious content
T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059.001 suspicious_process: Spawns a suspicious process

Privilege Escalation

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 unnamed_memory_regions: Code was executed in unnamed regions
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1070.004 self_removal_command: Executes command to delete itself
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Discovery

T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Command and Control

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

Other

yara_rules: Static rules
ce_info: CobaltStrike Configuration Data found
cobaltstrike_beacon: Memory region specific for CobaltStrike beacon was found
cobaltstrike_loader: CobaltStrike loader is detected
created_exe_is_similar_to_system_one: Сreated exe is similar to system one
creates_exe: Creates executable files in the file system
dns_without_resolve: DNS query without a response
creates_doc: Creates (office) documents in the file system
dead_host: Connects to IP addresses that do not respond to requests
executes_dropped_exe: Executes dropped exe files
unexpected_exception: Unexpected exception
no_graphical_activity: No graphic activity
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object

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