Managed XDR

c81ys67.exe (GandCrab) — malware analysis report

File info

Filename
c81ys67.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
342.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
1fbf51cbc1167ef793f784627a091740e0d9c5d7
SHA256
73318cd6686acab325fc1602e14f452e459a22311483f6997f7e50708219faf4
MD5
2a6ccc708d9eb4f55d8fd5b943999bc4

Malwares

  • GandCrab

Signatures

Privilege Escalation

T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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
T1112 wu_server: Sets or changes an update server used by Windows Update
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562.001 disables_windowsupdate: Disables Windows Auto Updates
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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

Impact

T1489 stops_service: Stops Windows services
T1489 change_service_config: Stops services via ChangeServiceConfig
T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
no_graphical_activity: No graphic activity
has_pdb: This executable file has a PDB path
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
open_winlogon_process: Trying to open winlogon process

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