Analysis

  • max time kernel
    156s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:59

General

  • Target

    08768317e8119dd0e11ff876a0b9227db7120d0578a9302db713ce356d57e431.exe

  • Size

    89KB

  • MD5

    e24166008f0ce22f27414cfedcd66f28

  • SHA1

    06845d814d192bc14948bb68cc74e22254348015

  • SHA256

    08768317e8119dd0e11ff876a0b9227db7120d0578a9302db713ce356d57e431

  • SHA512

    78fdc1aa09a3019cd0502605541895ffa363de3779f1c97a3345063f7c736abfe569883efca6c440b886134a70790c51c4b28cdae85fbc6203ee6a9614d6556b

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 49 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\08768317e8119dd0e11ff876a0b9227db7120d0578a9302db713ce356d57e431.exe
    "C:\Users\Admin\AppData\Local\Temp\08768317e8119dd0e11ff876a0b9227db7120d0578a9302db713ce356d57e431.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2040
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\08768317e8119dd0e11ff876a0b9227db7120d0578a9302db713ce356d57e431.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:648
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1232
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3852
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3056
  • 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:3660
  • 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:3096

Network

MITRE ATT&CK Enterprise v6

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Downloads

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

    e35a45a76f275a739c7f4ce88907e680

    SHA1

    a8be64e622a7295a40896df1e47b9a08361c1943

    SHA256

    f483d6021af1a3655d9de01ed9368d41653ae9def1504134cd34f42a23665652

    SHA512

    38c8499e673d111425d118f5aad2258b02719799ce1a8aa42f80d0fbb17125ce4469dfaca27928fc5c6c38c3e1a735bce0e7157c7478d2278137ec5209f2b044

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

    e35a45a76f275a739c7f4ce88907e680

    SHA1

    a8be64e622a7295a40896df1e47b9a08361c1943

    SHA256

    f483d6021af1a3655d9de01ed9368d41653ae9def1504134cd34f42a23665652

    SHA512

    38c8499e673d111425d118f5aad2258b02719799ce1a8aa42f80d0fbb17125ce4469dfaca27928fc5c6c38c3e1a735bce0e7157c7478d2278137ec5209f2b044