General

  • Target

    PO SEP.xlsx

  • Size

    100KB

  • Sample

    220907-tdv6pscea6

  • MD5

    9dd1b342e0fabe4a83a36247aea2516a

  • SHA1

    461f6f4f5e3ea8bb0f5e6d4a94a1003dcc5629eb

  • SHA256

    9eeecfee3b26bebbb096d87164ae7ab429ff1898cbe3197e4fb7216783b78e42

  • SHA512

    ce96053da1416b4e8f26e86b3d76a91b78ba35bd2b79263be43cdb3b3c56b6774556defe65aa57a72981ae3fe69258f7208d5203dba731eff27a150535ec9665

  • SSDEEP

    3072:FPzswi9p8v3HmIXK7lMvLcAC88tVY61vswFu46:VzswUKPmIX1jcZO61vK46

Malware Config

Extracted

Family

snakekeylogger

Credentials

Targets

    • Target

      PO SEP.xlsx

    • Size

      100KB

    • MD5

      9dd1b342e0fabe4a83a36247aea2516a

    • SHA1

      461f6f4f5e3ea8bb0f5e6d4a94a1003dcc5629eb

    • SHA256

      9eeecfee3b26bebbb096d87164ae7ab429ff1898cbe3197e4fb7216783b78e42

    • SHA512

      ce96053da1416b4e8f26e86b3d76a91b78ba35bd2b79263be43cdb3b3c56b6774556defe65aa57a72981ae3fe69258f7208d5203dba731eff27a150535ec9665

    • SSDEEP

      3072:FPzswi9p8v3HmIXK7lMvLcAC88tVY61vswFu46:VzswUKPmIX1jcZO61vK46

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks