Analysis

  • max time kernel
    167s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:01

General

  • Target

    0be5424bcd08263fa76f69c19086f23986d45a0879befaddff383780a236ab7c.exe

  • Size

    150KB

  • MD5

    e462a24b45e91fd7818ad9007d0edc8a

  • SHA1

    a6d83735ed4708f1b635af121c5bcd07166a6ab6

  • SHA256

    0be5424bcd08263fa76f69c19086f23986d45a0879befaddff383780a236ab7c

  • SHA512

    f2e89b5f41470e49cefb5e6cdc50260136c841472a20efe8dd8af4e1d1fb4722022cd431508e7705b01895d5f62c578db944f7e84bb5e9f7c18214a7237ef9b2

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 50 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\0be5424bcd08263fa76f69c19086f23986d45a0879befaddff383780a236ab7c.exe
    "C:\Users\Admin\AppData\Local\Temp\0be5424bcd08263fa76f69c19086f23986d45a0879befaddff383780a236ab7c.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3228
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2484
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0be5424bcd08263fa76f69c19086f23986d45a0879befaddff383780a236ab7c.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3888
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3152
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3100
  • 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:3980
  • 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:952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    7f170f69b21ee6c0d2898a1953410105

    SHA1

    f94d6cc9b2bfc930b2225d8c1712fd837c334ab5

    SHA256

    3afce402c2ed0325d1a2e6fb9910ae8bce9eadd74cbe443de83fe16e76a40afc

    SHA512

    f45bf529643d8519d9c06c9bf1e7a7f796d9a742b54f3fbf432efb6d867d602c7e74aff535b07d2b8f423bc40d84b5cdad5b09c8bf8c7f88cabc64b589434214

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

    MD5

    7f170f69b21ee6c0d2898a1953410105

    SHA1

    f94d6cc9b2bfc930b2225d8c1712fd837c334ab5

    SHA256

    3afce402c2ed0325d1a2e6fb9910ae8bce9eadd74cbe443de83fe16e76a40afc

    SHA512

    f45bf529643d8519d9c06c9bf1e7a7f796d9a742b54f3fbf432efb6d867d602c7e74aff535b07d2b8f423bc40d84b5cdad5b09c8bf8c7f88cabc64b589434214