Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:34

General

  • Target

    09aa9dfb6a2e5f7047ace0481ebf98f093cf4f7fe9084be13cae1f14eb12db06.exe

  • Size

    168KB

  • MD5

    a3268351f79fe4d9ef0d092852b799b0

  • SHA1

    d131c1cc38f0a58116caa33b6cd463682fa53c82

  • SHA256

    09aa9dfb6a2e5f7047ace0481ebf98f093cf4f7fe9084be13cae1f14eb12db06

  • SHA512

    c6e294c1ff0767388bfc10739e92751b2613e8bc60aead42c52c127e280e5a97b77c96552753c4e9063c4d952077e69ad7197cd345e04abd1bfbeec29ad9583d

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 55 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\09aa9dfb6a2e5f7047ace0481ebf98f093cf4f7fe9084be13cae1f14eb12db06.exe
    "C:\Users\Admin\AppData\Local\Temp\09aa9dfb6a2e5f7047ace0481ebf98f093cf4f7fe9084be13cae1f14eb12db06.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1164
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09aa9dfb6a2e5f7047ace0481ebf98f093cf4f7fe9084be13cae1f14eb12db06.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3944
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1896
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:4076
  • 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:1420
  • 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:1568

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    5e29678f650dd8cd6843f164b830dcda

    SHA1

    7decac0c754cbd2abb38a55e07bd75c1766aaff1

    SHA256

    7f879835ce0d87468f0cdd7255f95b508456dc6cba4e436241a2d2187853c69d

    SHA512

    c1d899fcb7e9f63516240e527a14ee679ea97a6b8ddb99a6976fc200350a628da1fa945319460647f9a8b44d1be7737be9ddb5ecfab115f79d603fa27ad1cdd9

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

    5e29678f650dd8cd6843f164b830dcda

    SHA1

    7decac0c754cbd2abb38a55e07bd75c1766aaff1

    SHA256

    7f879835ce0d87468f0cdd7255f95b508456dc6cba4e436241a2d2187853c69d

    SHA512

    c1d899fcb7e9f63516240e527a14ee679ea97a6b8ddb99a6976fc200350a628da1fa945319460647f9a8b44d1be7737be9ddb5ecfab115f79d603fa27ad1cdd9

  • memory/2228-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB