Analysis

  • max time kernel
    165s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:31

General

  • Target

    0af3a1ce0ec970a4e80538e9495dbde45ae66b6d3380c39f1ffa7fd550cabc42.exe

  • Size

    35KB

  • MD5

    8cfbf4099d1cc9f430fcf6ad781fd80d

  • SHA1

    d5d41e2b7218c496d87ed6ba145a3d0b2764de91

  • SHA256

    0af3a1ce0ec970a4e80538e9495dbde45ae66b6d3380c39f1ffa7fd550cabc42

  • SHA512

    0dfe673ad869a2927402ffda19b9c65d0e1de9a36f524f9119972789b5c6f81713c0d207ecb846c5ebf9578a78ab114e0df1cfacc6a0ea4375b5707fc8cfbad8

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 52 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\0af3a1ce0ec970a4e80538e9495dbde45ae66b6d3380c39f1ffa7fd550cabc42.exe
    "C:\Users\Admin\AppData\Local\Temp\0af3a1ce0ec970a4e80538e9495dbde45ae66b6d3380c39f1ffa7fd550cabc42.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2000
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0af3a1ce0ec970a4e80538e9495dbde45ae66b6d3380c39f1ffa7fd550cabc42.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1192
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:672
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1060
  • 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:3020
  • 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:3272

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    c32bfa7d27a77713a403670a8ef95e45

    SHA1

    afb1e5770a2d0da3ca16ecbdf04416ae9f664306

    SHA256

    e96e8bca9449bc835519cc8c93fbd91eccabbaf431a812e9f68702a27d4114e4

    SHA512

    0517e5d6063a94d63d9aff482b3f0fb2476065952c178f2e4845cdef61d0900dd570767725b60a1bd3055253e5da166870d98fa855704139840da271c94039cc

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

    c32bfa7d27a77713a403670a8ef95e45

    SHA1

    afb1e5770a2d0da3ca16ecbdf04416ae9f664306

    SHA256

    e96e8bca9449bc835519cc8c93fbd91eccabbaf431a812e9f68702a27d4114e4

    SHA512

    0517e5d6063a94d63d9aff482b3f0fb2476065952c178f2e4845cdef61d0900dd570767725b60a1bd3055253e5da166870d98fa855704139840da271c94039cc