Analysis

  • max time kernel
    166s
  • max time network
    187s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:38

General

  • Target

    03e0d5c67d14312fe925782b48e0f387d80e0bf8a389c6516307de0ba923dfc7.exe

  • Size

    35KB

  • MD5

    f115551bdc1aba4a853f7d5670984b80

  • SHA1

    cfac089e1122ca7d929393c55d8c75f0839d26ea

  • SHA256

    03e0d5c67d14312fe925782b48e0f387d80e0bf8a389c6516307de0ba923dfc7

  • SHA512

    5ec930ac8320a152dd9b5d558341ae5abb527c1b999856402e033a358dc190c07f7a610028301a21c0aef15122f2e5a88b59936611d148a613b19807b087fbd5

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 49 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03e0d5c67d14312fe925782b48e0f387d80e0bf8a389c6516307de0ba923dfc7.exe
    "C:\Users\Admin\AppData\Local\Temp\03e0d5c67d14312fe925782b48e0f387d80e0bf8a389c6516307de0ba923dfc7.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3080
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\03e0d5c67d14312fe925782b48e0f387d80e0bf8a389c6516307de0ba923dfc7.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3224
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2228
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3340
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:4068
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    b534156fbda2ac19a2f9f229aab27d0e

    SHA1

    e81e1599a6ca08e1aa0f606bc1037b3731be0d1e

    SHA256

    1e33e07c7fb76358cd687c8767bfd3b0fd46981b300beb85f3183568ef61a349

    SHA512

    399d3420be58e538794f2fdc74ce1c254715cfc9ee506ec9c373716fbe7e1a7a0b8d0d4018c96fecfd341f5197e3490adf92513cc05a61bf364e903e2b496a95

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    b534156fbda2ac19a2f9f229aab27d0e

    SHA1

    e81e1599a6ca08e1aa0f606bc1037b3731be0d1e

    SHA256

    1e33e07c7fb76358cd687c8767bfd3b0fd46981b300beb85f3183568ef61a349

    SHA512

    399d3420be58e538794f2fdc74ce1c254715cfc9ee506ec9c373716fbe7e1a7a0b8d0d4018c96fecfd341f5197e3490adf92513cc05a61bf364e903e2b496a95