Analysis

  • max time kernel
    175s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:36

General

  • Target

    150e54b3e9f7589df60689a67620577b16e8c7532ac02c7912bfb1e3aefa0a9a.exe

  • Size

    36KB

  • MD5

    b9365e30d47a5b2a378298d4a7e3aac6

  • SHA1

    47a0e814c10d305e0c31cb22baab65ab4f507957

  • SHA256

    150e54b3e9f7589df60689a67620577b16e8c7532ac02c7912bfb1e3aefa0a9a

  • SHA512

    afdabcad6addd982f976a43e99802835f906a097b7d54f6e87cea182958ff9abc5b7df4cd5490a5c73880aa13285df3eeb8fe1e7b97478d006249e3f73fcac96

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 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\150e54b3e9f7589df60689a67620577b16e8c7532ac02c7912bfb1e3aefa0a9a.exe
    "C:\Users\Admin\AppData\Local\Temp\150e54b3e9f7589df60689a67620577b16e8c7532ac02c7912bfb1e3aefa0a9a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1276
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\150e54b3e9f7589df60689a67620577b16e8c7532ac02c7912bfb1e3aefa0a9a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3088
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2044
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3520
  • 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:1080
  • 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:1840

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    5a04fab8d5dcbfda7caca2e4430bdb87

    SHA1

    ed5be4cde1bab30686b1e7cc85348b1af40d5c58

    SHA256

    2387b1f20ddbc0e16bcc96aad692ad2911809e0b4e9f1618ca5814f7279e60b7

    SHA512

    a0b159e2bf70ac7ba6294e0902c886f6c45ce0211fbb54e691b309278339e2cea736306da3df266db099d74b9f348fab58fd78ae31ee2c3440fb0aac3e79cdb3

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

    MD5

    5a04fab8d5dcbfda7caca2e4430bdb87

    SHA1

    ed5be4cde1bab30686b1e7cc85348b1af40d5c58

    SHA256

    2387b1f20ddbc0e16bcc96aad692ad2911809e0b4e9f1618ca5814f7279e60b7

    SHA512

    a0b159e2bf70ac7ba6294e0902c886f6c45ce0211fbb54e691b309278339e2cea736306da3df266db099d74b9f348fab58fd78ae31ee2c3440fb0aac3e79cdb3