Managed XDR

autorecovery-save-of-document.docm.asd (Cobalt Strike) — malware analysis report

File info

Filename
autorecovery-save-of-document.docm.asd
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: Windows User, Template: Normal.dotm, Last Saved By: Windows User, Revision Number: 3, Name of Creating Application: Microsoft Office Word, Total Editing Time: 14:00, Create Time/Date: Mon Jun 29 14:41:00 2020, Last Saved Time/Date: Mon Jun 29 14:42:00 2020, Number of Pages: 46, Number of Words: 68686, Number of Characters: 391512, Security: 0
File size
7.5 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
839eeda6d4a30e61a5eb38b6d00ef36ec350ce0e
SHA256
bb0d188b18a386917b7d3dcfb8e1712615d7e5dd4f5e46f6929483093b9ab7a5
MD5
029bb1629c1e70170ecaad33baccb887

Malwares

  • Cobalt Strike

Signatures

Execution

T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains 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
T1064 office_macros: The document contains macro
T1064 office_macros_autoexec: The document contains an auto-start macro
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

T1497.001 antivm_queries_computername: Retrieves the computer name

Other

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

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