Managed XDR

vtdl_7gb_1c7w (Revenge-RAT) — malware analysis report

File info

Filename
vtdl_7gb_1c7w
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: Daniel Silva, Last Saved By: george, Name of Creating Application: Microsoft Excel, Create Time/Date: Wed Feb 7 01:19:21 2024, Last Saved Time/Date: Sat Feb 17 02:09:15 2024, Security: 0
File size
66 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
fca254e4a14415132974b496211ca4e191d1fb21
SHA256
5232198b47ac95bcf659dca73a6be9ae1011658470c361c4f0432e23e4ad18b2
MD5
cbd65373494d8b2839d117d18d77eabc

Malwares

  • Revenge-RAT

Signatures

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1059.001 suspicious_process: Spawns a suspicious process
T1064 office_macros: The document contains macroses (total: 4)
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

T1055.002 inject_write_pe: Writes PE file to another process's memory
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

T1218 bypass_dev_utils: Executing .NET utility in a suspended state, potentially for injection
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1064 office_macros: The document contains macroses (total: 4)
T1064 office_macros_autoexec: The document contains an auto-start macro

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
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Other

yara_rules: Static rules
networkdyndns_checkip: Connects to a Dynamic DNS domain
modifies_certs: Attempts to generate or modify system certificates
dead_host: Connects to IP addresses that do not respond to requests
process_crashed: One of the processes has failed
office_summary: The document contains suspicious metadata
creates_suspended_process: Creates suspended process
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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