Analysis

  • max time kernel
    139s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2023 16:49

General

  • Target

    Musterino_96930826_Ekno_1_202311146214813_ekstre.pdf.exe

  • Size

    826KB

  • MD5

    a25ba7095b79a87bedb01b874045470a

  • SHA1

    4ccf21195e4242b9c35675ace7f27122eb88883f

  • SHA256

    89c4d34808b79effab30b96880fabab56c4d53bfc77d51a1ee2f389340a5e4c3

  • SHA512

    fc6ac7199da4c5986f31fb623fb6138aee4f9c3fbdf33dd9e74918a67508ae0dba3c439e5ac33f3794ed708de71a75d76a2dbb0f67c1f2bd58d102e08fff34db

  • SSDEEP

    12288:OBa/mFiTEJ0+0OR8FCkotcyVItk4CZX0U6TWU5LDhi87dQuIAgNtNMZf5xnIKqS3:6IOXqr7dw1kEKq3ryoomBhS

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot6735527834:AAH3PffzMarE3Ys8tyS4SQ0IBXrHFKmsmnQ/sendMessage?chat_id=6692536703

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Musterino_96930826_Ekno_1_202311146214813_ekstre.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Musterino_96930826_Ekno_1_202311146214813_ekstre.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Users\Admin\AppData\Local\Temp\Musterino_96930826_Ekno_1_202311146214813_ekstre.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Musterino_96930826_Ekno_1_202311146214813_ekstre.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Musterino_96930826_Ekno_1_202311146214813_ekstre.pdf.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1696-10-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1696-19-0x0000000005C70000-0x0000000005C80000-memory.dmp

    Filesize

    64KB

  • memory/1696-18-0x0000000074B40000-0x00000000752F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1696-17-0x0000000006CE0000-0x0000000006EA2000-memory.dmp

    Filesize

    1.8MB

  • memory/1696-16-0x0000000006AC0000-0x0000000006B10000-memory.dmp

    Filesize

    320KB

  • memory/1696-15-0x0000000005C70000-0x0000000005C80000-memory.dmp

    Filesize

    64KB

  • memory/1696-14-0x0000000074B40000-0x00000000752F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1712-8-0x00000000056A0000-0x00000000056AA000-memory.dmp

    Filesize

    40KB

  • memory/1712-9-0x0000000006670000-0x00000000066FE000-memory.dmp

    Filesize

    568KB

  • memory/1712-0-0x0000000000780000-0x0000000000854000-memory.dmp

    Filesize

    848KB

  • memory/1712-7-0x00000000053B0000-0x00000000053C6000-memory.dmp

    Filesize

    88KB

  • memory/1712-13-0x0000000074B40000-0x00000000752F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1712-6-0x00000000053D0000-0x000000000546C000-memory.dmp

    Filesize

    624KB

  • memory/1712-5-0x0000000005110000-0x000000000511A000-memory.dmp

    Filesize

    40KB

  • memory/1712-4-0x00000000053C0000-0x00000000053D0000-memory.dmp

    Filesize

    64KB

  • memory/1712-3-0x0000000005170000-0x0000000005202000-memory.dmp

    Filesize

    584KB

  • memory/1712-2-0x0000000005720000-0x0000000005CC4000-memory.dmp

    Filesize

    5.6MB

  • memory/1712-1-0x0000000074B40000-0x00000000752F0000-memory.dmp

    Filesize

    7.7MB