Analysis

  • max time kernel
    153s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:26

General

  • Target

    1000e73e10e8d7e40be9ee1c5b6be98b1021bb8cc81dc918cd73b373b17f44ce.exe

  • Size

    176KB

  • MD5

    a87aaecdc10772206fbdfdc0d8a3a2b0

  • SHA1

    1c69ff6c9fdfd6a29db9203162f6a207131ee4aa

  • SHA256

    1000e73e10e8d7e40be9ee1c5b6be98b1021bb8cc81dc918cd73b373b17f44ce

  • SHA512

    ffbbc1b4839d610f4e8e1d6b2bf6cd7ba2278b0f0affce1f09ab7661ca1e6f107420314ce02cd9c2bd5aa06b394d625f99afcde2d6d6fc225a898e0b1d790482

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 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\1000e73e10e8d7e40be9ee1c5b6be98b1021bb8cc81dc918cd73b373b17f44ce.exe
    "C:\Users\Admin\AppData\Local\Temp\1000e73e10e8d7e40be9ee1c5b6be98b1021bb8cc81dc918cd73b373b17f44ce.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3948
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1472
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1000e73e10e8d7e40be9ee1c5b6be98b1021bb8cc81dc918cd73b373b17f44ce.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3844
  • 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:2576
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:64
  • 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:3620

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    4d381ed5aab48d8cd70be736e2878210

    SHA1

    cf7f2cfb027c997e07eb8aef10366dcf47ac890e

    SHA256

    a8ea91a64bac02aedc44a0c688b2f102e2b18642af58929840f2a26e2eaa84ad

    SHA512

    0b1b7d061641de2d47fe2537c6f0926b58dae28d28987ca8f4b7c65280474ae5830ceb559dcd21ae14752ef1370f324d2189d74c1bd65132a967a3356066b1b4

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

    MD5

    4d381ed5aab48d8cd70be736e2878210

    SHA1

    cf7f2cfb027c997e07eb8aef10366dcf47ac890e

    SHA256

    a8ea91a64bac02aedc44a0c688b2f102e2b18642af58929840f2a26e2eaa84ad

    SHA512

    0b1b7d061641de2d47fe2537c6f0926b58dae28d28987ca8f4b7c65280474ae5830ceb559dcd21ae14752ef1370f324d2189d74c1bd65132a967a3356066b1b4

  • memory/3948-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB