Analysis

  • max time kernel
    160s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:10

General

  • Target

    0b8bb6fdae6f3c8d724ef45b4274f01a7432332e29af59305b9ddc1ea7f6f0d5.exe

  • Size

    35KB

  • MD5

    3eaf7e8bb06ab03cf2e2821ffbb5e145

  • SHA1

    15cc06cedbfa079f12f6e34a348c721ec9df9ce9

  • SHA256

    0b8bb6fdae6f3c8d724ef45b4274f01a7432332e29af59305b9ddc1ea7f6f0d5

  • SHA512

    3f26049e85b70245f20fb00c708b7355f71b26e5af516b6399e3198b4eac0523bd26986d79b2bb30d5ab9f5c84953b18c3a6ecebd52e510055a7545dc59efefc

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 53 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\0b8bb6fdae6f3c8d724ef45b4274f01a7432332e29af59305b9ddc1ea7f6f0d5.exe
    "C:\Users\Admin\AppData\Local\Temp\0b8bb6fdae6f3c8d724ef45b4274f01a7432332e29af59305b9ddc1ea7f6f0d5.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1004
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0b8bb6fdae6f3c8d724ef45b4274f01a7432332e29af59305b9ddc1ea7f6f0d5.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2212
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1828
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1512
  • 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:2636
  • 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:228

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    MD5

    14b96c53a1b88c7989cd3f53cb89abfb

    SHA1

    61768136a9a3f63c3c92735844f297f93eda6f58

    SHA256

    d5efb00666bda63d3f1e45529a5a5f34dad8d55d0d7b48108ebd82991a47a695

    SHA512

    f1731d914bed05a60e5631962c78ee969e88b9b3206ce55d41bef26cbf87614a70f3770ffa6f391be47f579e20d07a0701e3091037ad363a0cd8e824198cea44

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

    MD5

    14b96c53a1b88c7989cd3f53cb89abfb

    SHA1

    61768136a9a3f63c3c92735844f297f93eda6f58

    SHA256

    d5efb00666bda63d3f1e45529a5a5f34dad8d55d0d7b48108ebd82991a47a695

    SHA512

    f1731d914bed05a60e5631962c78ee969e88b9b3206ce55d41bef26cbf87614a70f3770ffa6f391be47f579e20d07a0701e3091037ad363a0cd8e824198cea44