Managed XDR

newsec_enc_patched_patched_lock.exe (BlackMatter, Lockbit) — malware analysis report

File info

Filename
newsec_enc_patched_patched_lock.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
151.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
a068c0a7960b5455268a4180e00efbef877967df
SHA256
38f17e5ba992943d18e8c0e2b2c01429a7954db4d331bdf65755767c24946672
MD5
4ec611469b99178456addca910c8cd52

Malwares

  • BlackMatter
  • Lockbit

Signatures

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

T1562.001 disables_security: Disables Windows Security options
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1574.011 persistence_services: Modifies Services registry key
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
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

Discovery

T1518.001 antiav_detectservice: Attempts to detect installed antiviruses by a certain service
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)

Collection

T1074.001 access_recyclebin: Manipulation with recyclebin detected

Impact

T1489 stops_service: Stops Windows services
T1486 modifies_files2: Cryptolocker indicators detected (50 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 50 or more files)
T1486 ransomware_files: Ransomware indicators detected BlackMatter (creates keys and the instruction on how to unlock the files)
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)
T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
ce_info: Lockbit Configuration Data found
no_graphical_activity: No graphic activity
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call

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