Analysis

  • max time kernel
    164s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 08:27

General

  • Target

    0b06661cadf127315450cfcbd763aced03de2035f54247c97b6ce1285bc38184.exe

  • Size

    216KB

  • MD5

    a6bfd0eaf669613fc2abdc90dd227959

  • SHA1

    a2371363f63317296dfc342534e54fc386ac35ff

  • SHA256

    0b06661cadf127315450cfcbd763aced03de2035f54247c97b6ce1285bc38184

  • SHA512

    e947abee052f01fb4955ea6858843d28c1c64c9dbaa7ab876899cc16efda208b978eb03fbfbe387d33e577618e243bb83246deef1c1e081c090d29ba85b9b252

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\0b06661cadf127315450cfcbd763aced03de2035f54247c97b6ce1285bc38184.exe
    "C:\Users\Admin\AppData\Local\Temp\0b06661cadf127315450cfcbd763aced03de2035f54247c97b6ce1285bc38184.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2432
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0b06661cadf127315450cfcbd763aced03de2035f54247c97b6ce1285bc38184.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2568
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3552
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3552
  • 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:3264
  • 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:2604

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    13b75ddf5a53fa85ce2d93a8593e6578

    SHA1

    0782cc401d76d6cba6da58492076c13de5f33032

    SHA256

    9e0e4d83f7997a26897e025b59178d6f97c394251c3934302252b77dbd626d00

    SHA512

    6f0bc67f4ea67dba8642544e820504f9d0a4dd18b9666d4ff98a15bc55eb24d2997de668603b85d39c7e8f6e88ed820fa055ba1daf4bc03c09c7ed3c6ad3362f

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

    13b75ddf5a53fa85ce2d93a8593e6578

    SHA1

    0782cc401d76d6cba6da58492076c13de5f33032

    SHA256

    9e0e4d83f7997a26897e025b59178d6f97c394251c3934302252b77dbd626d00

    SHA512

    6f0bc67f4ea67dba8642544e820504f9d0a4dd18b9666d4ff98a15bc55eb24d2997de668603b85d39c7e8f6e88ed820fa055ba1daf4bc03c09c7ed3c6ad3362f

  • memory/1472-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB