Analysis

  • max time kernel
    166s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:36

General

  • Target

    0f825f6727e3a0ff478530a9d3476a04f8b63d422a42806803fe3189318199d9.exe

  • Size

    88KB

  • MD5

    d4a669c7424339d7d30b0deb1402921c

  • SHA1

    200c813c8dc964ec77328f394ced3b2c932d6c28

  • SHA256

    0f825f6727e3a0ff478530a9d3476a04f8b63d422a42806803fe3189318199d9

  • SHA512

    5cf0615303ee2ef3bbdc5bdfb99f8a8e1c063f0d7c772a700d80ab312b00eb31308785fe3f6a3ea312d61974e332e2e1c295424ce831e96f74f1b41ebdfc8436

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 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 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\0f825f6727e3a0ff478530a9d3476a04f8b63d422a42806803fe3189318199d9.exe
    "C:\Users\Admin\AppData\Local\Temp\0f825f6727e3a0ff478530a9d3476a04f8b63d422a42806803fe3189318199d9.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3972
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0f825f6727e3a0ff478530a9d3476a04f8b63d422a42806803fe3189318199d9.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2124
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3888
  • 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:3344
  • 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:2540

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    93164285934eb5211ae3583fcd8df0bb

    SHA1

    61a9a311af22b9739c0dcbe0274f9814340ab1db

    SHA256

    7874865504b3b8f9570ee22d16cdbbeeb027423498a451570b629b9e681c80c0

    SHA512

    7d99b625599975675adfae237c24b51e7bde5b71a30eb678121bbf6cc07f9937039b2dfee39c2164a84eef211ec925238728ac7304bc4b6f9f7431ea659a9edc

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

    MD5

    93164285934eb5211ae3583fcd8df0bb

    SHA1

    61a9a311af22b9739c0dcbe0274f9814340ab1db

    SHA256

    7874865504b3b8f9570ee22d16cdbbeeb027423498a451570b629b9e681c80c0

    SHA512

    7d99b625599975675adfae237c24b51e7bde5b71a30eb678121bbf6cc07f9937039b2dfee39c2164a84eef211ec925238728ac7304bc4b6f9f7431ea659a9edc

  • memory/2396-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3972-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB