Managed XDR

lb3decryptor.exe (BlackMatter, Lockbit, DarkSide) — malware analysis report

File info

Filename
lb3decryptor.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
39ef495da14eedac5145763755ac4e5c79ed525c
SHA256
21436f54cb37938c26cc0ddf8ad2bd230c9248d90a7179053de3b376dcae41d5
MD5
1f023dfe25f67f44fe84fba2c1f6cc48

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

Related reports

Managed XDR