Analysis

  • max time kernel
    167s
  • max time network
    178s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:10

General

  • Target

    07e9ff81aacf9a25ff432bd200130b6545880a250846467863eb5495d4858c2c.exe

  • Size

    100KB

  • MD5

    d6e463e8d2167a85a5a7b71ae5577e0a

  • SHA1

    9ab60415d2522426695a4d5d6116d0176985e43f

  • SHA256

    07e9ff81aacf9a25ff432bd200130b6545880a250846467863eb5495d4858c2c

  • SHA512

    2b1ee226c8eb6a5e4dbaeefd5df181a3c3aa93d7d8c0eff690b96519470b7ff821eab2a14000c892c65559ee35790224b0d419332b1e14db17c2362f36739774

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\07e9ff81aacf9a25ff432bd200130b6545880a250846467863eb5495d4858c2c.exe
    "C:\Users\Admin\AppData\Local\Temp\07e9ff81aacf9a25ff432bd200130b6545880a250846467863eb5495d4858c2c.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1052
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\07e9ff81aacf9a25ff432bd200130b6545880a250846467863eb5495d4858c2c.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2104
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2628
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2848
  • 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:3752
  • 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:3368

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    256e2016c6b56c6eb4182a51dfcfb0db

    SHA1

    80bacd7b8b14b957a7072e29a70224d07a90e43b

    SHA256

    ee8648aaf954811b9f3ca02e74dc5351534b6142f6cf3be7c2a55e317aa7d1af

    SHA512

    eb7927fdbd5dbe0b07cf2ed112e34f479763ea157a7de853c7ee1b4c80387c1e6a09436dccdd6005a1330d3a0e58e7e23ab9cb54f9ffd60e1bfa4ac81a6a8a6c

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

    256e2016c6b56c6eb4182a51dfcfb0db

    SHA1

    80bacd7b8b14b957a7072e29a70224d07a90e43b

    SHA256

    ee8648aaf954811b9f3ca02e74dc5351534b6142f6cf3be7c2a55e317aa7d1af

    SHA512

    eb7927fdbd5dbe0b07cf2ed112e34f479763ea157a7de853c7ee1b4c80387c1e6a09436dccdd6005a1330d3a0e58e7e23ab9cb54f9ffd60e1bfa4ac81a6a8a6c