Analysis

  • max time kernel
    173s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:21

General

  • Target

    049b574f34d803e5d04a2707f047e597ab0d9a6281695206a7f164e6c8da5a4f.exe

  • Size

    35KB

  • MD5

    afed24f868254deeddfd934997c4e5e0

  • SHA1

    cf52c21c14d31660fd0ac7249c3c950473f45947

  • SHA256

    049b574f34d803e5d04a2707f047e597ab0d9a6281695206a7f164e6c8da5a4f

  • SHA512

    a0d75dbd205d5338ab99b072722e70a567ea53888d8aa38b9877cb0f0d2ffc509aeef1e7d1acbd3db4d64e61d3f8dc72bb111c07508f20da6727c1e592ab493e

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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 54 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\049b574f34d803e5d04a2707f047e597ab0d9a6281695206a7f164e6c8da5a4f.exe
    "C:\Users\Admin\AppData\Local\Temp\049b574f34d803e5d04a2707f047e597ab0d9a6281695206a7f164e6c8da5a4f.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1508
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1944
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\049b574f34d803e5d04a2707f047e597ab0d9a6281695206a7f164e6c8da5a4f.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3956
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:4088
  • 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:3916
  • 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:2132

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    193a9352edabdaa2e94e8fcc09037aac

    SHA1

    1f23fc60e994c9b114e9afabc31608bb4c13bdfb

    SHA256

    5c87533917d32fdc277baf7de88c327bf213c550f41c500daa372851493aa0b7

    SHA512

    5b99e04d8321a2f70bca9b2f651180605e9a78e3317cfcd96750f07527dee0c23f0fedc14fcd90c1f17a052cb199e1276f21b26d526fba93696003c2eb2e9ae2

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

    193a9352edabdaa2e94e8fcc09037aac

    SHA1

    1f23fc60e994c9b114e9afabc31608bb4c13bdfb

    SHA256

    5c87533917d32fdc277baf7de88c327bf213c550f41c500daa372851493aa0b7

    SHA512

    5b99e04d8321a2f70bca9b2f651180605e9a78e3317cfcd96750f07527dee0c23f0fedc14fcd90c1f17a052cb199e1276f21b26d526fba93696003c2eb2e9ae2