Analysis

  • max time kernel
    171s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:26

General

  • Target

    072ed6cc455a675eddb3832d6492f7fb251fe5aee1be02b47cc213bdeb8e3dc5.exe

  • Size

    100KB

  • MD5

    98bb3db7c7dfe2097f88a778ca65eea7

  • SHA1

    b8ad9ca9c3f5a38d2f536de5e05e9d808780618d

  • SHA256

    072ed6cc455a675eddb3832d6492f7fb251fe5aee1be02b47cc213bdeb8e3dc5

  • SHA512

    6aa9b1563ad61415097bd32e1b38f46338d575aa1641768496f5c146b3f010010ed2f465ba40c33a7e63d6cf3bb6b7eeedbadefb80de78c0a322fbe00b271518

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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 49 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\072ed6cc455a675eddb3832d6492f7fb251fe5aee1be02b47cc213bdeb8e3dc5.exe
    "C:\Users\Admin\AppData\Local\Temp\072ed6cc455a675eddb3832d6492f7fb251fe5aee1be02b47cc213bdeb8e3dc5.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3948
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3904
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\072ed6cc455a675eddb3832d6492f7fb251fe5aee1be02b47cc213bdeb8e3dc5.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1492
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3724
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1952
  • 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:3344
  • 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:2404

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    7e9e932630410d8df1a1d5dac3c32018

    SHA1

    1a3dc5a6d65d5e206a502a069f3332d9e0e08da3

    SHA256

    2e9c85240264bd95103800f72e2cf2fde17aa5331d8b4d24ca8776baf2570788

    SHA512

    38f2545f41f23bf0a537804079b4ee2863f23701a53019084b97817940ac7820a47ec56a74cba6c1d948ea11ac673ca7038da9507784d81012515f5d31b6720a

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

    7e9e932630410d8df1a1d5dac3c32018

    SHA1

    1a3dc5a6d65d5e206a502a069f3332d9e0e08da3

    SHA256

    2e9c85240264bd95103800f72e2cf2fde17aa5331d8b4d24ca8776baf2570788

    SHA512

    38f2545f41f23bf0a537804079b4ee2863f23701a53019084b97817940ac7820a47ec56a74cba6c1d948ea11ac673ca7038da9507784d81012515f5d31b6720a