Analysis

  • max time kernel
    149s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 12:17

General

  • Target

    01fa2248b76aa60cabb7b5cab14450f7fd0d6abbeb2bc946acbd5f34fd3e0743.exe

  • Size

    191KB

  • MD5

    d7136a5085f490f67d828664d90d10a8

  • SHA1

    8dd561e48a17bb309a5d6f2dfd4b55a21bafabbb

  • SHA256

    01fa2248b76aa60cabb7b5cab14450f7fd0d6abbeb2bc946acbd5f34fd3e0743

  • SHA512

    797fcee0a17271076f1728a3f21b2f5b9eca5d77600ed88c0cc9713f283ca3e30d59fe9f0ebb72e567485bcc60ecccb52576dc8ec303d22789366b5d2366700f

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 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\01fa2248b76aa60cabb7b5cab14450f7fd0d6abbeb2bc946acbd5f34fd3e0743.exe
    "C:\Users\Admin\AppData\Local\Temp\01fa2248b76aa60cabb7b5cab14450f7fd0d6abbeb2bc946acbd5f34fd3e0743.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3880
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3360
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\01fa2248b76aa60cabb7b5cab14450f7fd0d6abbeb2bc946acbd5f34fd3e0743.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2712
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:624
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3364
  • 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:992
  • 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:2924

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    eab24eb3a3beb0d5fe113f27420a448e

    SHA1

    00d18681cf8240d7120e51f27cce6e67b7bb6708

    SHA256

    622ffe1e687d307a0340d39a38388462d7bdab33ff7ebe6e9079fb34306a73a6

    SHA512

    326eeb7a814c5d8d5c38c94e014bc894767334928c74d9cb278e855376d5a99bd620314b680b3f6e1fbc9b926c1c40acf36ac6f5aa5f730d197b8ac8c2380d65

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

    MD5

    eab24eb3a3beb0d5fe113f27420a448e

    SHA1

    00d18681cf8240d7120e51f27cce6e67b7bb6708

    SHA256

    622ffe1e687d307a0340d39a38388462d7bdab33ff7ebe6e9079fb34306a73a6

    SHA512

    326eeb7a814c5d8d5c38c94e014bc894767334928c74d9cb278e855376d5a99bd620314b680b3f6e1fbc9b926c1c40acf36ac6f5aa5f730d197b8ac8c2380d65