Managed XDR

c-users-user-appdata-l...ecution-lnk-report.lnk (Cobalt Strike) — malware analysis report

File info

Filename
c-users-user-appdata-local-temp-lwwjmhfw.bb2-apt28-2-execution-lnk-report.lnk
File type
MS Windows shortcut, Has Description string, Has command line arguments, Icon number=0, ctime=Mon Jan 1 00:00:00 1601, mtime=Mon Jan 1 00:00:00 1601, atime=Mon Jan 1 00:00:00 1601, length=0, window=hidenormalshowminimized
File size
204.7 KB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
de45b08deb1cccf50215a1318d83adf39d67f257
SHA256
37d7f927abcd4d1bf617e8279b8b8d7c8b14abec089e856faa6ffe36937c4e16
MD5
ef4579d6e1e665056bc593ecbad1e473

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_contains_pe: One or several unnamed memory regions are PE files
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
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

Command and Control

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

Other

yara_rules: Static rules
cobaltstrike_loader: CobaltStrike loader is detected
unexpected_exception: Unexpected exception
creates_suspended_process: Creates suspended process

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