Analysis

  • max time kernel
    152s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:23

General

  • Target

    0765c14e7ebed003763f7d165ae8ee0ead3eb4b27d65a3aa12d4653eb651ed09.exe

  • Size

    192KB

  • MD5

    af2bc65ce82c399ce5217e9a4b919f03

  • SHA1

    b9b34bad41c293df1fe2bf2371d822cd6dba5adc

  • SHA256

    0765c14e7ebed003763f7d165ae8ee0ead3eb4b27d65a3aa12d4653eb651ed09

  • SHA512

    04be93536f78bc59b8b5d6443b12c8753ae369380ddf223e0ea88fba5802e2a3cffe21875c4176749f1b762e652e070ea6a623a7084fc2bbe213e51fc51a051a

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 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\0765c14e7ebed003763f7d165ae8ee0ead3eb4b27d65a3aa12d4653eb651ed09.exe
    "C:\Users\Admin\AppData\Local\Temp\0765c14e7ebed003763f7d165ae8ee0ead3eb4b27d65a3aa12d4653eb651ed09.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1552
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:4036
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0765c14e7ebed003763f7d165ae8ee0ead3eb4b27d65a3aa12d4653eb651ed09.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3676
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1744
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3292
  • 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:3068
  • 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:3088

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    55a7f4667e53a9a44a53a782141041d6

    SHA1

    7ababd63feabe9d2ec03c00436a1f02b248c86a9

    SHA256

    52b8f543a24b3d98e783a39acf522e20f0b3806b1e3a371e3b5ec99fec82c0c3

    SHA512

    b51c95209ac9c622e6fa55437ad2239111aa1588f9d0f0f3f97cf331f5f07bb7f5f93fac27f6824cf9c8dc00ea8024033e6993225dd8187248a31478b69d23e5

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

    55a7f4667e53a9a44a53a782141041d6

    SHA1

    7ababd63feabe9d2ec03c00436a1f02b248c86a9

    SHA256

    52b8f543a24b3d98e783a39acf522e20f0b3806b1e3a371e3b5ec99fec82c0c3

    SHA512

    b51c95209ac9c622e6fa55437ad2239111aa1588f9d0f0f3f97cf331f5f07bb7f5f93fac27f6824cf9c8dc00ea8024033e6993225dd8187248a31478b69d23e5