Analysis

  • max time kernel
    77s
  • max time network
    150s
  • 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, 12:46

General

  • Target

    confirm order.pdf.z.exe

  • Size

    590KB

  • MD5

    748ec8e8b465e07469d5fd92a2ae365f

  • SHA1

    0680fc0f9ccc8d15990c415ddb876b909bda49fe

  • SHA256

    96f6d5e92907e880383195044e0481a9afbfa675123f86dc25b643b42c22ba29

  • SHA512

    3d65813c5adde583a9a98f9466bf3bc89173d89ec71a3f3b5f22e1a414e93ae323dd5f273645c32a490469dd5fb39a5f9b8331b3f642158c16953ab07310d6f4

  • SSDEEP

    12288:NSPYPfY713dxbzSlgpMAn0v4bk5ZgWDoTgeBPYo2XRtNs3ZY7:EPYPgR3dTpZXwgtTJJYooFs3Z

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.kovarviajes.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    P4tt1kr

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 behavior: RenamesItself 1 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\confirm order.pdf.z.exe
    "C:\Users\Admin\AppData\Local\Temp\confirm order.pdf.z.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Users\Admin\AppData\Local\Temp\confirm order.pdf.z.exe
      "C:\Users\Admin\AppData\Local\Temp\confirm order.pdf.z.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4360

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • memory/4360-142-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/4360-150-0x0000000005B50000-0x0000000005B60000-memory.dmp

          Filesize

          64KB

        • memory/4360-149-0x0000000074B60000-0x0000000075310000-memory.dmp

          Filesize

          7.7MB

        • memory/4360-148-0x0000000006BE0000-0x0000000006DA2000-memory.dmp

          Filesize

          1.8MB

        • memory/4360-147-0x0000000005B50000-0x0000000005B60000-memory.dmp

          Filesize

          64KB

        • memory/4360-145-0x0000000074B60000-0x0000000075310000-memory.dmp

          Filesize

          7.7MB

        • memory/4892-141-0x000000000A290000-0x000000000A32C000-memory.dmp

          Filesize

          624KB

        • memory/4892-134-0x0000000000270000-0x000000000030A000-memory.dmp

          Filesize

          616KB

        • memory/4892-140-0x0000000004F50000-0x0000000004F60000-memory.dmp

          Filesize

          64KB

        • memory/4892-139-0x0000000074B60000-0x0000000075310000-memory.dmp

          Filesize

          7.7MB

        • memory/4892-138-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

          Filesize

          40KB

        • memory/4892-146-0x0000000074B60000-0x0000000075310000-memory.dmp

          Filesize

          7.7MB

        • memory/4892-137-0x0000000004F50000-0x0000000004F60000-memory.dmp

          Filesize

          64KB

        • memory/4892-136-0x0000000004DC0000-0x0000000004E52000-memory.dmp

          Filesize

          584KB

        • memory/4892-135-0x00000000052D0000-0x0000000005874000-memory.dmp

          Filesize

          5.6MB

        • memory/4892-133-0x0000000074B60000-0x0000000075310000-memory.dmp

          Filesize

          7.7MB