Managed XDR

708806f5e2e8bfa3d1e911...80439b8b867253423df.7z (Diavol Ransomware, Diavol) — malware analysis report

File info

Filename
708806f5e2e8bfa3d1e911e391ff2ccf1edcac05cc1df80439b8b867253423df.7z
File type
7-zip archive data, version 0.4
File size
72.1 KB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
a99f248863622ed17d7cd387dba917cbb4dbec88
SHA256
b7b9656024c16559df9b86ebaba66fc3c5fb93469df802ab349390f4a4d3934d
MD5
da2f49f54baa9cfabd86b7bd0f507872

Malwares

  • Diavol Ransomware
  • Diavol

Signatures

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

T1497.001 antivm_generic_services: Enumerates services, possibly for anti-virtualization
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562 registry_hide_tracing: Modifies File/Console tracing settings (often used to hide iocs from the system)
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1497 evasion_prefetch: Attempts to detect Sandbox by process run count
T1497 evasion_winlogon: Attempts to detect Sandbox by winlogon sessions
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 infostealer_mail: Collects personal data from local email clients
T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
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

T1497.001 antivm_generic_services: Enumerates services, possibly for anti-virtualization
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_prefetch: Attempts to detect Sandbox by process run count
T1497 evasion_winlogon: Attempts to detect Sandbox by winlogon sessions

Collection

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

Command and Control

T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Exfiltration

T1022 encrypts_pc_info: Collects and encrypts information about the computer (possibly for exfiltration)

Impact

T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1561 wiper_zeroed_bytes: Overwrites multiple files with zero bytes (hex 00)
T1565.001 overwrites_firefox_settings: Modifies Mozilla Firefox settings
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)
T1486 mass_data_encryption: Encrypts data using the same key (possible ransomware behaviour)
T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
diavol: Detected Diavol ransomware
creates_in_windows: Creates files in the Windows directory
only_exec_in_archive: The archive contains only an executable file
create_rpc_bindings: Creates RPC connection
break_limit_exceeded: Warning: function calls limit has been exceeded
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
archive_password_infected: Archive is protected by 'infected' password
writes_data: Writes big amount of data to disk

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