Analysis

  • max time kernel
    162s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:44

General

  • Target

    0f1034c593e725dfe5a968d0fdecf2cdd141b6bfd658c4e6b524f14a2ff6f5af.exe

  • Size

    216KB

  • MD5

    8fd1a05274ceb5ff2350e8ecb15a2e52

  • SHA1

    f5ccb96df914caaf640aadcc78090db2e87c344f

  • SHA256

    0f1034c593e725dfe5a968d0fdecf2cdd141b6bfd658c4e6b524f14a2ff6f5af

  • SHA512

    bf192af6d0ede66e2d18cabea06b03fbf603df1852dcceb58ba5c4e89a4564357a1aae8b23f14dade1ae83c9a7143d52727efd39c6d9045b1c4ae6691a5c4071

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\0f1034c593e725dfe5a968d0fdecf2cdd141b6bfd658c4e6b524f14a2ff6f5af.exe
    "C:\Users\Admin\AppData\Local\Temp\0f1034c593e725dfe5a968d0fdecf2cdd141b6bfd658c4e6b524f14a2ff6f5af.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2980
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3640
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0f1034c593e725dfe5a968d0fdecf2cdd141b6bfd658c4e6b524f14a2ff6f5af.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2668
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2252
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3076
  • 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:3320
  • 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:3192

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    c800a5101846a88056f5d8fab445aeaa

    SHA1

    cedf471d9e6b6a68d8f1713ff255b77a9426d4cd

    SHA256

    37acc460c6dc0498b8b5bb3aac3c87f9df245f9601ad01bf6cec874a2e23f49f

    SHA512

    c1280116fab2df6f4dbac86b3897de24a209b62b48959539d29c82a77b848552ce6d19c3be8b8e4459b586896c3d37346d8919c7b0124f5e5294480446662337

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

    MD5

    c800a5101846a88056f5d8fab445aeaa

    SHA1

    cedf471d9e6b6a68d8f1713ff255b77a9426d4cd

    SHA256

    37acc460c6dc0498b8b5bb3aac3c87f9df245f9601ad01bf6cec874a2e23f49f

    SHA512

    c1280116fab2df6f4dbac86b3897de24a209b62b48959539d29c82a77b848552ce6d19c3be8b8e4459b586896c3d37346d8919c7b0124f5e5294480446662337

  • memory/2980-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3640-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB