Analysis

  • max time kernel
    172s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:31

General

  • Target

    0fc79c044278e99bf3f7d025d4e1338343edb35d8f73dd04faf3fe04dffb22a3.exe

  • Size

    216KB

  • MD5

    49e0ba35ffc1c607e219605fb331acf3

  • SHA1

    395665e051584319835889fb9ec413c6be0c4c0c

  • SHA256

    0fc79c044278e99bf3f7d025d4e1338343edb35d8f73dd04faf3fe04dffb22a3

  • SHA512

    3bec0e101f9dd6f7cf1cc7232b0bb5298cdbea8747ca1f967dd2f903a6427b07fc12a2bf2af40870365081352721025f2484232ddd27084eea146e4d7cef0b5e

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 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\0fc79c044278e99bf3f7d025d4e1338343edb35d8f73dd04faf3fe04dffb22a3.exe
    "C:\Users\Admin\AppData\Local\Temp\0fc79c044278e99bf3f7d025d4e1338343edb35d8f73dd04faf3fe04dffb22a3.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3920
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2184
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0fc79c044278e99bf3f7d025d4e1338343edb35d8f73dd04faf3fe04dffb22a3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3436
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2740
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2568
  • 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:1576
  • 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:3564

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    MD5

    673f3a9bf3d1331ebcf17ad5dd80743f

    SHA1

    5028ef7c652cd7d049fd1ca66e60696b14a9076c

    SHA256

    65b77c2de91b4b09458e96d0042d225c9ad361085c44b85365e76d08e675dfdf

    SHA512

    90fc45ff533159bb68d1eaa969bd648cd9993b260b266af889da2b2ed542a7131ff7c555ad219d5f98729a43b1a7a76e64dcd5b434234b65f54290866c26ab73

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

    MD5

    673f3a9bf3d1331ebcf17ad5dd80743f

    SHA1

    5028ef7c652cd7d049fd1ca66e60696b14a9076c

    SHA256

    65b77c2de91b4b09458e96d0042d225c9ad361085c44b85365e76d08e675dfdf

    SHA512

    90fc45ff533159bb68d1eaa969bd648cd9993b260b266af889da2b2ed542a7131ff7c555ad219d5f98729a43b1a7a76e64dcd5b434234b65f54290866c26ab73

  • memory/3920-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB