Managed XDR

home-petik-ss-malware-...1d7222031d43a8_virlock (Virlock) — malware analysis report

File info

Filename
home-petik-ss-malware-2025-01-16_9518077200e546802d1d7222031d43a8_virlock
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
111 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
10ef0937ff836977416b01715aa65241ddf574d8
SHA256
d5ee444fc959af3d917db7dbc0fd8b3c444f7be780f4a6c0a9b123cc776c8e5b
MD5
9518077200e546802d1d7222031d43a8

Malwares

  • Virlock

Signatures

Execution

T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.005 obfuscated_vbs: Detected obfuscated VBS
T1204.002 mimics_extension: Attempts to mimic the file extension

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
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

T1070.004 deletes_self: Moves to different location or removes the original executable file
T1564.001 hides_original_file: Makes original executable file hidden
T1112 stealth_hidden_extension: Attempts to change system settings so that file extensions won't be displayed
T1112 stealth_hiddenreg: Attempts to change Explorer settings so that hidden files won't be displayed
T1564.001 stealth_file: Creates hidden or system files
T1562 disables_uac: Disable UAC
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027 obfuscated_vbs: Detected obfuscated VBS
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1218 suspicious_cmdline_keywords: Cmdline with suspicious keywords
T1036 mimics_extension: Attempts to mimic the file extension
T1070 stealth_window: A process created a hidden window

Credential Access

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1552 infostealer_mail: Collects personal data from local email clients
T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1552 cookie_files: Accesses cookie files

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 process_interest: Enumerates processes
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name

Collection

T1114 infostealer_mail: Collects personal data from local email clients
T1074.001 access_recyclebin: Manipulation with recyclebin detected

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests

Impact

T1486 ransomware_windows_possible: Ransomware indicators detected (possible ransom window creation)
T1486 modifies_files: Cryptolocker indicators detected (renamed 5 or more files)

Other

yara_rules: Static rules
creates_many_processes: Spawns a lot of processes (over 70)
creates_exe: Creates executable files in the file system
static_pe_anomaly: The PE file structure contains anomalies
dead_host: Connects to IP addresses that do not respond to requests
executes_dropped_exe: Executes dropped exe files
create_rpc_bindings: Creates RPC connection
creates_in_programdata: Creates files in the ProgramData directory
writes_data: Writes big amount of data to disk
suricata_alert: Malicious traffic detected

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