Analysis

  • max time kernel
    140s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/07/2023, 07:03

General

  • Target

    confirm order.pdf.z.exe

  • Size

    645KB

  • MD5

    0b737638ee17ddf3c0ecf0c07d69618f

  • SHA1

    e5fe8deadae200f69ead7de852ae3b56160adceb

  • SHA256

    c26acaed8f3af9114db0aef3c6446531f65209789b4c423d18e4d40312bb633d

  • SHA512

    71cbd1c823824494ed08421c30179fa32a1a9bcc893b0f409aded01c96342810a8e023a2372671773eca9cbeee2e1664202feee7d50ff094e5ed21677c4d2b7e

  • SSDEEP

    12288:9oKS6ln+flo/XciMvtrlU8lIUip0d1JZ9bTJ0/zaCqQY7:9ofTdCjEtrXGCdzZ936zG7

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 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 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:896
    • 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:4836

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/896-141-0x00000000053E0000-0x00000000053F0000-memory.dmp

          Filesize

          64KB

        • memory/896-134-0x00000000747C0000-0x0000000074F70000-memory.dmp

          Filesize

          7.7MB

        • memory/896-136-0x00000000053F0000-0x0000000005482000-memory.dmp

          Filesize

          584KB

        • memory/896-137-0x00000000053E0000-0x00000000053F0000-memory.dmp

          Filesize

          64KB

        • memory/896-138-0x00000000054D0000-0x00000000054DA000-memory.dmp

          Filesize

          40KB

        • memory/896-139-0x0000000005730000-0x00000000057CC000-memory.dmp

          Filesize

          624KB

        • memory/896-135-0x0000000005A60000-0x0000000006004000-memory.dmp

          Filesize

          5.6MB

        • memory/896-140-0x00000000747C0000-0x0000000074F70000-memory.dmp

          Filesize

          7.7MB

        • memory/896-146-0x00000000747C0000-0x0000000074F70000-memory.dmp

          Filesize

          7.7MB

        • memory/896-133-0x00000000009B0000-0x0000000000A58000-memory.dmp

          Filesize

          672KB

        • memory/4836-145-0x00000000747C0000-0x0000000074F70000-memory.dmp

          Filesize

          7.7MB

        • memory/4836-142-0x0000000000400000-0x0000000000426000-memory.dmp

          Filesize

          152KB

        • memory/4836-147-0x0000000004EF0000-0x0000000004F00000-memory.dmp

          Filesize

          64KB

        • memory/4836-148-0x0000000006420000-0x00000000065E2000-memory.dmp

          Filesize

          1.8MB

        • memory/4836-149-0x00000000747C0000-0x0000000074F70000-memory.dmp

          Filesize

          7.7MB

        • memory/4836-150-0x0000000004EF0000-0x0000000004F00000-memory.dmp

          Filesize

          64KB