Analysis

  • max time kernel
    166s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:41

General

  • Target

    14c8795fd715db95a076bc2b6a1ae7148344830aebe4ffec27e259065cddca44.exe

  • Size

    60KB

  • MD5

    c4474b8d872545fea30a3933ddf522db

  • SHA1

    43979132be94a415714b9a44324e57b304c8b4d1

  • SHA256

    14c8795fd715db95a076bc2b6a1ae7148344830aebe4ffec27e259065cddca44

  • SHA512

    7beb4b8a827ee55218d0b4b0424a0c4d667cc2072494962ca0bca39b1d542755a91929082021212a74bcb565b3fa2d2994ff70780316861ab5f87b9402350d1f

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 54 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\14c8795fd715db95a076bc2b6a1ae7148344830aebe4ffec27e259065cddca44.exe
    "C:\Users\Admin\AppData\Local\Temp\14c8795fd715db95a076bc2b6a1ae7148344830aebe4ffec27e259065cddca44.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3780
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2608
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\14c8795fd715db95a076bc2b6a1ae7148344830aebe4ffec27e259065cddca44.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1740
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3456
  • 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:3684
  • 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:3468

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    740e421bcaca16092f29b1ca9809c373

    SHA1

    043de54088a0fa0d84e5e79e80809b24673911bb

    SHA256

    cbde1e622046c015964b5c846b0fcc91b4a096fd08caf532e9475d1e31da190f

    SHA512

    23990c1c1d283bfdab47612fa59f1b965ffa13e3520bff615e0c6bdfab4e8cda8e66afb5109fc53a48a458f6c44b628ea66402c56b987fad43ec0e3bd1cb41b5

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

    MD5

    740e421bcaca16092f29b1ca9809c373

    SHA1

    043de54088a0fa0d84e5e79e80809b24673911bb

    SHA256

    cbde1e622046c015964b5c846b0fcc91b4a096fd08caf532e9475d1e31da190f

    SHA512

    23990c1c1d283bfdab47612fa59f1b965ffa13e3520bff615e0c6bdfab4e8cda8e66afb5109fc53a48a458f6c44b628ea66402c56b987fad43ec0e3bd1cb41b5