Analysis

  • max time kernel
    168s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:30

General

  • Target

    06f01bfa7cfca92b64d533d0f9b46416c52169f5682cee019a99591aa2471cb7.exe

  • Size

    176KB

  • MD5

    72370f5c346b8bd221d6af9d5d8d9eb5

  • SHA1

    c2b04e8f5136d1cfbc80afe5abbc4066e8697e0d

  • SHA256

    06f01bfa7cfca92b64d533d0f9b46416c52169f5682cee019a99591aa2471cb7

  • SHA512

    a3f9429fb9f297401f84ab5252e15dcbfc4e4d63445081d21893e0ba6999d817f662c3d69b9edfdaf3ee2fcc77cc57d0c8e824b434af73ff5ad65adc89b28143

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\06f01bfa7cfca92b64d533d0f9b46416c52169f5682cee019a99591aa2471cb7.exe
    "C:\Users\Admin\AppData\Local\Temp\06f01bfa7cfca92b64d533d0f9b46416c52169f5682cee019a99591aa2471cb7.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2644
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:632
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\06f01bfa7cfca92b64d533d0f9b46416c52169f5682cee019a99591aa2471cb7.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3392
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3768
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
    1⤵
    • Checks processor information in registry
    PID:1004
  • 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:3824
  • 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:408

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    c25eb1c1609836979641f20b42f9bc7f

    SHA1

    d2f332313c1536a0f775697b72fcd09001c30138

    SHA256

    6de179630608f45d04e091291bd25bb22521f6907bb769e50315ff4c5ba7da82

    SHA512

    b3d9ce9bea0e1677ff34416a13b3d4bb2b810a82c230ee1a74f1d43ab48706f5d250c300c6fe5909167e19ef1fbcad993139505fb7bf3d97a6331ef6cbe1b898

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

    c25eb1c1609836979641f20b42f9bc7f

    SHA1

    d2f332313c1536a0f775697b72fcd09001c30138

    SHA256

    6de179630608f45d04e091291bd25bb22521f6907bb769e50315ff4c5ba7da82

    SHA512

    b3d9ce9bea0e1677ff34416a13b3d4bb2b810a82c230ee1a74f1d43ab48706f5d250c300c6fe5909167e19ef1fbcad993139505fb7bf3d97a6331ef6cbe1b898

  • memory/2644-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB