Analysis

  • max time kernel
    164s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:32

General

  • Target

    04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe

  • Size

    36KB

  • MD5

    51a2252acd5f8fac8ffa76f2802746fd

  • SHA1

    6748f0b13dd6fb6f7afb0eb1ceb6d5aabeff3f91

  • SHA256

    04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd

  • SHA512

    b0eb27b19cf5869f3c75acb7f5ccb98e8e00080e5b12070427501a1333f9ec7dec87b92f14cfc96e6c59e6f59211e844b835a4a962cac18fc556812ea787247e

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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 54 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\04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe
    "C:\Users\Admin\AppData\Local\Temp\04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2948
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\04277d924f299a135f2c90f166690b00e1a3891b1b6de8bb954e746b3eec46cd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3332
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2052
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2916
  • 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:2468
  • 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:364

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    a329a7af2341192e5d0a269f35c20fea

    SHA1

    fb428fda81b1e4b130e736f28a7d2c59104167a9

    SHA256

    89c35536722fd3ccb89138fea8d85bc6665e6ecb932839e38e94c2893b2b1c0d

    SHA512

    d63019c41d2db12e56057a32ffa9bc18164d97e2f670a0917e909afd1356749ad2b854a8a0a6ba28d3c8d7a3fbec1afe61e9a3cd3013d9a4f21898ea135896f8

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

    a329a7af2341192e5d0a269f35c20fea

    SHA1

    fb428fda81b1e4b130e736f28a7d2c59104167a9

    SHA256

    89c35536722fd3ccb89138fea8d85bc6665e6ecb932839e38e94c2893b2b1c0d

    SHA512

    d63019c41d2db12e56057a32ffa9bc18164d97e2f670a0917e909afd1356749ad2b854a8a0a6ba28d3c8d7a3fbec1afe61e9a3cd3013d9a4f21898ea135896f8