Analysis

  • max time kernel
    192s
  • max time network
    207s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:45

General

  • Target

    14986310ec92e935b7a45a6bb2f6f1fe43f8cd9f0bd49575ab20ea7f57b67c53.exe

  • Size

    216KB

  • MD5

    b07590503b3d184a88d6b22013e39d59

  • SHA1

    23f3876d91f7748764cc877cb740bf8381f2c51d

  • SHA256

    14986310ec92e935b7a45a6bb2f6f1fe43f8cd9f0bd49575ab20ea7f57b67c53

  • SHA512

    38c73f6ba4280e2f48a4c08effcba4d5207ae859374b3c8d052d9327eeeb8542e32c19ebff651143a576bbfce4465929d484fe6f91fe590b93414d663a36dc4a

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 3 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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\14986310ec92e935b7a45a6bb2f6f1fe43f8cd9f0bd49575ab20ea7f57b67c53.exe
    "C:\Users\Admin\AppData\Local\Temp\14986310ec92e935b7a45a6bb2f6f1fe43f8cd9f0bd49575ab20ea7f57b67c53.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:820
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3452
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\14986310ec92e935b7a45a6bb2f6f1fe43f8cd9f0bd49575ab20ea7f57b67c53.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3588
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:832
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3088
  • 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:4016
  • 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:392

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    c705873740ed76a49451df6b13141d9f

    SHA1

    bc650e519c90946d0f398528632f4d9e920eaad7

    SHA256

    b666f4c1667097839ba09996131d78d6023036b8e26483934e4a6c155a2c94b3

    SHA512

    480fe6a03c839b7f3eb539363446807ff5744ac46a4ce89a469b25b51c154c69818efed33479c49e867b772131abae51e8154e3f84987ec456ca3f4ffce22704

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

    MD5

    c705873740ed76a49451df6b13141d9f

    SHA1

    bc650e519c90946d0f398528632f4d9e920eaad7

    SHA256

    b666f4c1667097839ba09996131d78d6023036b8e26483934e4a6c155a2c94b3

    SHA512

    480fe6a03c839b7f3eb539363446807ff5744ac46a4ce89a469b25b51c154c69818efed33479c49e867b772131abae51e8154e3f84987ec456ca3f4ffce22704

  • memory/820-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB