Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:32

General

  • Target

    153b52dbfd728c09df9c483178b1549e6bc0b202505acc42d8fdacbe74be4dfe.exe

  • Size

    216KB

  • MD5

    a7a0846bcc931c530f8467d46ee26c97

  • SHA1

    66c03a0edb1fbb446c600b01ebfc6669ae8d7a01

  • SHA256

    153b52dbfd728c09df9c483178b1549e6bc0b202505acc42d8fdacbe74be4dfe

  • SHA512

    6eb53bac4e8c936f0b5548ef5c08739a6d4f4bf83bd5662e6b6d87cdf0f7226d4ee01d993d901487875d95d2ce0570c781845520bf94a3867b195cb4336f6ce1

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 IoCs
  • 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 56 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\153b52dbfd728c09df9c483178b1549e6bc0b202505acc42d8fdacbe74be4dfe.exe
    "C:\Users\Admin\AppData\Local\Temp\153b52dbfd728c09df9c483178b1549e6bc0b202505acc42d8fdacbe74be4dfe.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:4060
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\153b52dbfd728c09df9c483178b1549e6bc0b202505acc42d8fdacbe74be4dfe.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2700
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1708
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2340
  • 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:2452
  • 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:3648

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    0790781fd034f7de04cf36f78d402153

    SHA1

    d7ef3daea62a89ca7e4cc66855e886f25335ac3e

    SHA256

    cc4a879288b5e5b517247a02b43f3ce9a536c4b058f716b1cf8e99de8b7a249c

    SHA512

    fecb6cce9ebf2c5caf4590247226e67fe48bb36fdbbcc19a30196fcf5f13ede9e810c3c615bbc29fdf1d11cd8b6e92eef632ba4e84a68d6f008e92ab9933512e

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

    MD5

    0790781fd034f7de04cf36f78d402153

    SHA1

    d7ef3daea62a89ca7e4cc66855e886f25335ac3e

    SHA256

    cc4a879288b5e5b517247a02b43f3ce9a536c4b058f716b1cf8e99de8b7a249c

    SHA512

    fecb6cce9ebf2c5caf4590247226e67fe48bb36fdbbcc19a30196fcf5f13ede9e810c3c615bbc29fdf1d11cd8b6e92eef632ba4e84a68d6f008e92ab9933512e

  • memory/1364-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4060-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB