Analysis

  • max time kernel
    150s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:40

General

  • Target

    06847b4e22ddf133e06b7fa3ff199be1da3e60987ce782a1e3121dbd58c15e8e.exe

  • Size

    151KB

  • MD5

    d0ef82dbfcbf932ccd38e21770b8bd41

  • SHA1

    a2c31a51c5d33122f4f44f51207cbfda63ff76b7

  • SHA256

    06847b4e22ddf133e06b7fa3ff199be1da3e60987ce782a1e3121dbd58c15e8e

  • SHA512

    8f714493a60763a83087ae44613da43777d4f790ba3b11b5e76d0f25b4572a2b2da74e7df3a9cf416c26c418e684a8c6ab0bfc5b5270b702f124fbd920be7735

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • 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 56 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\06847b4e22ddf133e06b7fa3ff199be1da3e60987ce782a1e3121dbd58c15e8e.exe
    "C:\Users\Admin\AppData\Local\Temp\06847b4e22ddf133e06b7fa3ff199be1da3e60987ce782a1e3121dbd58c15e8e.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1088
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\06847b4e22ddf133e06b7fa3ff199be1da3e60987ce782a1e3121dbd58c15e8e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3752
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3572
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1336
  • 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:3904
  • 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:2664

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    6fe27d408c6af9b7d3973377a10f995d

    SHA1

    38db974d7e716931bf9545fd5d410df7585d6bdd

    SHA256

    8ed0379af54e77efedb671d9327efdb540dffb18e582aaa2d03ebdc533d1fdb2

    SHA512

    349bf774f5544adf7c99dae0e0c8396ffbd7d4c3e9faa3d12fbe761f87d00c52f9d5fc1acf8aa737d2c99222d1edbfab155791b25808e8530f78e840e85b3d3c

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

    6fe27d408c6af9b7d3973377a10f995d

    SHA1

    38db974d7e716931bf9545fd5d410df7585d6bdd

    SHA256

    8ed0379af54e77efedb671d9327efdb540dffb18e582aaa2d03ebdc533d1fdb2

    SHA512

    349bf774f5544adf7c99dae0e0c8396ffbd7d4c3e9faa3d12fbe761f87d00c52f9d5fc1acf8aa737d2c99222d1edbfab155791b25808e8530f78e840e85b3d3c