Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/07/2023, 12:47

General

  • Target

    Confirmación de transferencia.exe

  • Size

    590KB

  • MD5

    23e2e7bd3d1d30d4881b382d10a54c9c

  • SHA1

    a75a3fc37c081a8e36eb46a64d1673e541369782

  • SHA256

    1a1c58b80969ae187cde83fd32586d6072f8b66eae0dd3ae81c7b0d015d5c308

  • SHA512

    493fdd35c6db8574d10f2dfdd19040fbdaca9bae7599393a9cec93c3fde1f775804ed8994b6d37c3171f52e61a7beb1afad300a0aa93d92abb1f53c878996d9b

  • SSDEEP

    12288:pyPYPfY7hJGELu3yqwhy5kD8KeNjIqhlVSKZ2jv:MPYPgXqCqwE5uze+qfD2j

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 2 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 11 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmación de transferencia.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmación de transferencia.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Users\Admin\AppData\Local\Temp\Confirmación de transferencia.exe
      "C:\Users\Admin\AppData\Local\Temp\Confirmación de transferencia.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2664

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Confirmación de transferencia.exe.log

          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • memory/2664-142-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/2664-150-0x00000000052E0000-0x00000000052F0000-memory.dmp

          Filesize

          64KB

        • memory/2664-149-0x0000000074B80000-0x0000000075330000-memory.dmp

          Filesize

          7.7MB

        • memory/2664-148-0x00000000063A0000-0x0000000006562000-memory.dmp

          Filesize

          1.8MB

        • memory/2664-147-0x00000000052E0000-0x00000000052F0000-memory.dmp

          Filesize

          64KB

        • memory/2664-145-0x0000000074B80000-0x0000000075330000-memory.dmp

          Filesize

          7.7MB

        • memory/3488-141-0x000000000A750000-0x000000000A7EC000-memory.dmp

          Filesize

          624KB

        • memory/3488-134-0x0000000074B80000-0x0000000075330000-memory.dmp

          Filesize

          7.7MB

        • memory/3488-140-0x0000000005350000-0x0000000005360000-memory.dmp

          Filesize

          64KB

        • memory/3488-139-0x0000000074B80000-0x0000000075330000-memory.dmp

          Filesize

          7.7MB

        • memory/3488-138-0x0000000005070000-0x000000000507A000-memory.dmp

          Filesize

          40KB

        • memory/3488-146-0x0000000074B80000-0x0000000075330000-memory.dmp

          Filesize

          7.7MB

        • memory/3488-137-0x0000000005350000-0x0000000005360000-memory.dmp

          Filesize

          64KB

        • memory/3488-136-0x00000000050C0000-0x0000000005152000-memory.dmp

          Filesize

          584KB

        • memory/3488-135-0x0000000005670000-0x0000000005C14000-memory.dmp

          Filesize

          5.6MB

        • memory/3488-133-0x00000000005E0000-0x000000000067A000-memory.dmp

          Filesize

          616KB