Managed XDR

b9fdbfb739aa9e40.exe (BlackMatter, Lockbit, DarkSide) — malware analysis report

File info

Filename
b9fdbfb739aa9e40.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
54.5 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
4388225e13da68b8f6fc8756afa3127fb6990f11
SHA256
255a789064d2257b6de923074fef01296b240681f8e811c7f0f681e193d11444
MD5
08ed55a7c37a30ddfbc0730ccdd2740f

Malwares

  • BlackMatter
  • Lockbit
  • DarkSide

Signatures

Privilege Escalation

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 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
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
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

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 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey

Collection

T1114 infostealer_mail: Collects personal data from local email clients

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Impact

T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)

Other

yara_rules: Static rules
network_bind: Starts servers listening at None
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
require_administrator: Requests administrator privileges
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services

Related reports

Managed XDR