Managed XDR

vtdl_yl0dlmup (Cobalt Strike) — malware analysis report

File info

Filename
vtdl_yl0dlmup
File type
Microsoft Word 2007+
File size
21 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
7477afeb8c6f6f1429cffc8a49a483f25ea33454
SHA256
c1434c42975da62e29ad2c7d5b40a0bbf494354ffdfaf3f880edfbace4ef2ee3
MD5
c6f7c475ac3f3fcab19dc02ffe68d1f0

Malwares

  • Cobalt Strike

Signatures

Execution

T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)

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

T1064 office_macros_suspicious: Document contains suspicious macro
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1064 office_macros_autoexec: The document contains an auto-start macro
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

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
checktokenmembership: Checks user token with CheckTokenMembership call

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