Managed XDR

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

File info

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

Environment

win7/x86 en

Hashes

SHA1
bc300b544f8360054ce019851d5cdcfc1972d5c7
SHA256
00d7f65c6c8e0188730f64365edb7819a8f3798b7bc561b125cac1c9eb58fb09
MD5
3883dfa4bd2d45783156cab8a06b6c07

Malwares

  • BlackMatter
  • Lockbit
  • DarkSide

Signatures

Privilege Escalation

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

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
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

Credential Access

T1552 infostealer_mail: Collects personal data from local email clients
T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)

Collection

T1114 infostealer_mail: Collects personal data from local email clients

Other

yara_rules: Static rules
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
require_administrator: Requests administrator privileges

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