Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 02:49

General

  • Target

    1968ea4740b45f99a34703ff6797a8338fb37e38930dc2818ff211793ed76499.exe

  • Size

    176KB

  • MD5

    f709326b43405c7eb7f521d9926e9086

  • SHA1

    b257701a4a30e39ac04aaf951c8c5c85404797d1

  • SHA256

    1968ea4740b45f99a34703ff6797a8338fb37e38930dc2818ff211793ed76499

  • SHA512

    04f84d9471335f4dfc249d7e8baf6eceb9a4034fa7efdb270488b29a209bfb98349056cf9230da09742f961ee00d85149e72a6fe28868ee5e9c5170c97eb42d1

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 51 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\1968ea4740b45f99a34703ff6797a8338fb37e38930dc2818ff211793ed76499.exe
    "C:\Users\Admin\AppData\Local\Temp\1968ea4740b45f99a34703ff6797a8338fb37e38930dc2818ff211793ed76499.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:752
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\1968ea4740b45f99a34703ff6797a8338fb37e38930dc2818ff211793ed76499.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1292
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1924
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3540
  • 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:3820
  • 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:3376

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    9035066fa610e250690d5ab5e02223cf

    SHA1

    35f063ffe0aa0bcb26e1bc3883dc1cf7472029b1

    SHA256

    497061d19259ba65bf66bcaa9035afca7a8558d4982437eb617394271acd1e51

    SHA512

    e6cc11f3e0fd777651060ef157521ffbc2ae7b666b03f746baf1162137cb00bc499bbf7b666daa0607ca01a87b6af65f41939a03d87737ddd1087eac377d26a1

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

    MD5

    9035066fa610e250690d5ab5e02223cf

    SHA1

    35f063ffe0aa0bcb26e1bc3883dc1cf7472029b1

    SHA256

    497061d19259ba65bf66bcaa9035afca7a8558d4982437eb617394271acd1e51

    SHA512

    e6cc11f3e0fd777651060ef157521ffbc2ae7b666b03f746baf1162137cb00bc499bbf7b666daa0607ca01a87b6af65f41939a03d87737ddd1087eac377d26a1

  • memory/752-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3064-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB