General

  • Target

    PO 008-01.docx

  • Size

    10KB

  • Sample

    220913-m18xrafdf8

  • MD5

    429b2307c47f8f23fc986c7f48afd03b

  • SHA1

    bbefb4c3ce3265ec3096a0e08b7d3d654cda5b99

  • SHA256

    ff4935f904a0c7670835cf1ebdda3512b4a86290f35b23be019fdf86bdc4dabe

  • SHA512

    5dc58645aa5bb199ae4cf1f757b3eeed2dbf6b1dae03581526a4e2da6cb996a117ab9ddc9ecbf9b43f1361c18f766db19f3a62d90baa3ed8e9284fb7fb2e63ac

  • SSDEEP

    192:ScIMmtPf+CUG/bA3/w2OgNrdlJFmQDZ7rhhap30GzV:SPXumAOgNjJFmIZfhMFrJ

Malware Config

Extracted

Rule
Microsoft Office WebSettings Relationship
C2

http://users@1806450061/..---------..--------------_----_______---_---______------------/.........................87.doc

Extracted

Family

snakekeylogger

Credentials

Targets

    • Target

      PO 008-01.docx

    • Size

      10KB

    • MD5

      429b2307c47f8f23fc986c7f48afd03b

    • SHA1

      bbefb4c3ce3265ec3096a0e08b7d3d654cda5b99

    • SHA256

      ff4935f904a0c7670835cf1ebdda3512b4a86290f35b23be019fdf86bdc4dabe

    • SHA512

      5dc58645aa5bb199ae4cf1f757b3eeed2dbf6b1dae03581526a4e2da6cb996a117ab9ddc9ecbf9b43f1361c18f766db19f3a62d90baa3ed8e9284fb7fb2e63ac

    • SSDEEP

      192:ScIMmtPf+CUG/bA3/w2OgNrdlJFmQDZ7rhhap30GzV:SPXumAOgNjJFmIZfhMFrJ

    • 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

    • Abuses OpenXML format to download file from external location

    • 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.

    • Uses the VBS compiler for execution

    • 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