Analysis

  • max time kernel
    159s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:15

General

  • Target

    13494ff84c1096c4ba23b1cc2e299ae6c428804eb105814154003a3c3ebfa1a1.exe

  • Size

    216KB

  • MD5

    49171e1ffa54f2452b63b9fb46b2539a

  • SHA1

    0a2749507f9909b0115200207179511e1eb939ec

  • SHA256

    13494ff84c1096c4ba23b1cc2e299ae6c428804eb105814154003a3c3ebfa1a1

  • SHA512

    7978accaa664deb6a0c8d81904bacd8e40c6a1684d94b84363183cfa92bf504e0779cf6f84c0a85867f9b8395fc86f58d5ab526438e328ea7ce206afe6db761e

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 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\13494ff84c1096c4ba23b1cc2e299ae6c428804eb105814154003a3c3ebfa1a1.exe
    "C:\Users\Admin\AppData\Local\Temp\13494ff84c1096c4ba23b1cc2e299ae6c428804eb105814154003a3c3ebfa1a1.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3968
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\13494ff84c1096c4ba23b1cc2e299ae6c428804eb105814154003a3c3ebfa1a1.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2056
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1148
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:708
  • 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:2968
  • 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

    b165374a857311a063b880bac6d6e4fc

    SHA1

    e33efad387c48d4f7b928a3b9f8c9fd35e7f485f

    SHA256

    e0b29e483e1481dc3162a061d9c385eefc4a3f2314a070dc8a4dcae30ee2b103

    SHA512

    579ab1303489b80a7c42d94062f241b8227ffb07cad0594060302a2a4cbaa0ce4db1bb8a7162db8808367070507258185a980484a9096a148551d70fe3722422

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

    MD5

    b165374a857311a063b880bac6d6e4fc

    SHA1

    e33efad387c48d4f7b928a3b9f8c9fd35e7f485f

    SHA256

    e0b29e483e1481dc3162a061d9c385eefc4a3f2314a070dc8a4dcae30ee2b103

    SHA512

    579ab1303489b80a7c42d94062f241b8227ffb07cad0594060302a2a4cbaa0ce4db1bb8a7162db8808367070507258185a980484a9096a148551d70fe3722422

  • memory/540-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3968-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB