Managed XDR

0ff70000 (ZLoader) — malware analysis report

File info

Filename
0ff70000
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: -535, Title: , Author: Microsoft Corp., Comments: , Last Saved By: george, Name of Creating Application: Microsoft Excel, Create Time/Date: Wed Jun 26 20:49:32 1996, Last Saved Time/Date: Wed Dec 11 18:18:28 2024, Security: 0
File size
629.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
c265f57ab0ebd7b4db0f1ef9c77ee3af4294ec0a
SHA256
72d168cd1272ba331355979e226314841cf538fa9b78268dadf44975804057f6
MD5
6f21640adfc2d0ff68df2ed4e08116b6

Malwares

  • ZLoader

Signatures

Execution

T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1064 office_macros: The document contains macroses (total: 8)
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_hidden: Document contains suspicious Excel 4.0 macro
T1064 office_macros: The document contains macroses (total: 8)
T1064 office_macros_autoexec: The document contains an auto-start macro
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
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

T1083 checks_recent_files: Attempt to check recently opened files through registry
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Other

yara_rules: Static rules
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
office_summary: The document contains suspicious metadata
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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