Managed XDR

vtdl_wikg5ccb (BlackMatter, Lockbit) — malware analysis report

File info

Filename
vtdl_wikg5ccb
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
103.8 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
7ca6591766e2b7fecdc8576bcef8ba29bff5ff62
SHA256
b8c5b9004d50d75e9ca272d5f198c91be65659fc3ec6d9ef7d43bc776b303ee1
MD5
1c3d7a2de149eb3600576a9d570ff925

Malwares

  • BlackMatter
  • Lockbit

Signatures

Execution

T1047 has_wmi: Executes one or several WMI requests

Persistence

T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key

Privilege Escalation

T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
T1134 sets_privilegies_via_rtladjustprivilege: Sets process privilege via RtlAdjustPrivilege
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

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1574.011 persistence_services: Modifies Services registry key
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1134 sets_privilegies_via_rtladjustprivilege: Sets process privilege via RtlAdjustPrivilege
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets

Discovery

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Collection

T1074.001 access_recyclebin: Manipulation with recyclebin detected

Impact

T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1489 stops_service: Stops Windows services
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)
T1486 ransomware_files: Ransomware indicators detected BlackMatter (creates keys and the instruction on how to unlock the files)
T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
ce_info: Lockbit Configuration Data found
lockbit: Detected ransomware Lockbit
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
no_graphical_activity: No graphic activity
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk

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