Managed XDR

vtdl_hz4hrsto (Revenge-RAT) — malware analysis report

File info

Filename
vtdl_hz4hrsto
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: Fri Feb 16 01:12:43 2024, Security: 0
File size
66 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
6152dea3b86c244ef4bcf4a5e1c795764ed3cbf9
SHA256
32455fa8fe03fd4390485399ced47c97c98d9647fd7074937061bf26a418d5b3
MD5
b8161bcc56b26312c12e9b291ead2b97

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

Related reports