Managed XDR

vtdl_9d760u1y (ZLoader) — malware analysis report

File info

Filename
vtdl_9d760u1y
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: ImTrfM, Last Saved By: Administrator, Name of Creating Application: Microsoft Excel, Create Time/Date: Fri Nov 27 11:39:22 2020, Last Saved Time/Date: Fri Nov 27 11:39:22 2020, Security: 0
File size
36.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
47bd60e2a10f115504fdd0de3dbe3e5c621b80cd
SHA256
bdbca5d0b4005405b679df39276b5d63c8d3779760347029dfcbc98bac097e4f
MD5
8c52ef50a3999b68d80bdc71974c192c

Malwares

  • ZLoader

Signatures

Execution

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1204.002 office_strings: Office file contains suspicious strings
T1064 office_macros: The document contains macroses (total: 3)
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_hidden: Document contains suspicious Excel 4.0 macro
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1064 office_macros: The document contains macroses (total: 3)
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

T1518 locates_browser: Attempts to identify where browsers are installed
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1082 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
create_rpc_bindings: Creates RPC connection
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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