Analysis

  • max time kernel
    123s
  • max time network
    151s
  • 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, 06:22

General

  • Target

    detalle_transferencia_pdf.exe

  • Size

    593KB

  • MD5

    5c51af75d9435cc14972dc5bd6bbc127

  • SHA1

    2bcaf5781fb1abdd7b295ef32b6bc11148281a4a

  • SHA256

    653712fe2ab77c16473454a92a6ee7200e7c9600262bbb24e14612bdf393185f

  • SHA512

    0a1d7d15e533eb9c7fecc14f81b5fc87c4af65ff8e235a5f42285fcda00b076831562b17d9a2753d1c55d2f0deaeea6fe4f4899ad47827bba5c0f8423df2179d

  • SSDEEP

    12288:2PYPfY7l4NDVZmH3Pq5kWxxtFEaDlZOeGyn4PJ6SbG:2PYPg5D/q5kktFTXnac

Malware Config

Extracted

Family

snakekeylogger

Credentials

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 4 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\detalle_transferencia_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\detalle_transferencia_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Users\Admin\AppData\Local\Temp\detalle_transferencia_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\detalle_transferencia_pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4580

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • memory/1348-141-0x000000000A070000-0x000000000A10C000-memory.dmp

          Filesize

          624KB

        • memory/1348-134-0x0000000000360000-0x00000000003FA000-memory.dmp

          Filesize

          616KB

        • memory/1348-136-0x0000000004E10000-0x0000000004EA2000-memory.dmp

          Filesize

          584KB

        • memory/1348-137-0x0000000004D90000-0x0000000004DA0000-memory.dmp

          Filesize

          64KB

        • memory/1348-138-0x0000000004FB0000-0x0000000004FBA000-memory.dmp

          Filesize

          40KB

        • memory/1348-139-0x0000000074F70000-0x0000000075720000-memory.dmp

          Filesize

          7.7MB

        • memory/1348-135-0x00000000052E0000-0x0000000005884000-memory.dmp

          Filesize

          5.6MB

        • memory/1348-140-0x0000000004D90000-0x0000000004DA0000-memory.dmp

          Filesize

          64KB

        • memory/1348-146-0x0000000074F70000-0x0000000075720000-memory.dmp

          Filesize

          7.7MB

        • memory/1348-133-0x0000000074F70000-0x0000000075720000-memory.dmp

          Filesize

          7.7MB

        • memory/4580-145-0x0000000074F70000-0x0000000075720000-memory.dmp

          Filesize

          7.7MB

        • memory/4580-142-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/4580-147-0x0000000005280000-0x0000000005290000-memory.dmp

          Filesize

          64KB

        • memory/4580-148-0x0000000006300000-0x00000000064C2000-memory.dmp

          Filesize

          1.8MB

        • memory/4580-149-0x0000000074F70000-0x0000000075720000-memory.dmp

          Filesize

          7.7MB

        • memory/4580-150-0x0000000005280000-0x0000000005290000-memory.dmp

          Filesize

          64KB