General

  • Target

    e0b04e8988248b327bde20ad36087876e6c2681dcf890748b107d686ca90ecd1

  • Size

    894KB

  • Sample

    220221-lscc5sagen

  • MD5

    5ed61abde7b9f83a3a336a19dfa813c4

  • SHA1

    53a42684201417d1eada423662030a9c3e269ab0

  • SHA256

    e0b04e8988248b327bde20ad36087876e6c2681dcf890748b107d686ca90ecd1

  • SHA512

    557799a1f8cb648ebd96b74bb52e914946430961314e6f3e11b54bedba5fe4c4ea2190c24f70930255b333409a329ddd75ed1b3407fa103fc32573b9f889ce88

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Nigerian99

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Nigerian99

Targets

    • Target

      1u0Zwj9C2xbMA6p.exe

    • Size

      1.2MB

    • MD5

      faa90e7fee57b0ad8bb527f71eb4738c

    • SHA1

      70cde86bddc0505007f3cbaf96661f55de57a8df

    • SHA256

      b2196e769c2ab067096df011dfa35bc9d02b594211b610b84d833d3a152ce3f4

    • SHA512

      2323e57d1500396c60cf3f363b2ae90f1f860ecca9fbb6bcf39e246f1718b99ffbd6bb5ea31762b0e272cd949bf96ce74714b5120a4c4259a387fa6ed376798c

    • Matiex

      Matiex is a keylogger and infostealer first seen in July 2020.

    • Matiex Main Payload

    • CustAttr .NET packer

      Detects CustAttr .NET packer in memory.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks