Analysis

  • max time kernel
    163s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:56

General

  • Target

    088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe

  • Size

    188KB

  • MD5

    d7be0f23da1dcc36b16b390de4629e1d

  • SHA1

    d5364272570001e25d3cb5c817150c9ac1a10bca

  • SHA256

    088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2

  • SHA512

    63330a8b0a77dd191ff1ff3b5274b9c3521760cafdb01e85622b642d364cd39b52ea5e68738dfa703464e312afe2a9d42bfb89674066491245f69fbc56c6e284

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\088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe
    "C:\Users\Admin\AppData\Local\Temp\088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3524
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:228
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\088d4b7100e872bccddde13c9d8fd037836e5b89c7b747e66667d545f0370ee2.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:612
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2512
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:464
  • 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:8
  • 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:2552

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    cf07c3c3eb4d5464b2ac813bdd42bb82

    SHA1

    e7cfa6ded9c975eacb3f4bff69427fbdfe98cf2d

    SHA256

    d21271f2513ffa17f069bd44735b5e2913d35e84ffa897ef33b90ab2215ea740

    SHA512

    20ab64eeadf0aedf815fb8dd751c2004e0386094f6c934167910762f848ad963f38879fe8670310264095b600550f40989d2cf50b105a23b49b2f3b92ce14926

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

    cf07c3c3eb4d5464b2ac813bdd42bb82

    SHA1

    e7cfa6ded9c975eacb3f4bff69427fbdfe98cf2d

    SHA256

    d21271f2513ffa17f069bd44735b5e2913d35e84ffa897ef33b90ab2215ea740

    SHA512

    20ab64eeadf0aedf815fb8dd751c2004e0386094f6c934167910762f848ad963f38879fe8670310264095b600550f40989d2cf50b105a23b49b2f3b92ce14926

  • memory/3524-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB