Analysis

  • max time kernel
    174s
  • max time network
    186s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:46

General

  • Target

    0913fb0f15766f114260988ca4ea9dfff0f5397103cff7e840e909371d236c7c.exe

  • Size

    99KB

  • MD5

    29e53ba3bd4a5f2e084072c7ff9b976b

  • SHA1

    165a3de449d833cc993f54accb2f4cdd67b4bcb4

  • SHA256

    0913fb0f15766f114260988ca4ea9dfff0f5397103cff7e840e909371d236c7c

  • SHA512

    0f599813b470eaa96397667b6bd81c79c1d58aa8de37be3fb48cac2f68b93b3f8a77175a62fdf2093631dee1294083019bfd540a1b2bd3c9e2211db94d7f8380

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 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\0913fb0f15766f114260988ca4ea9dfff0f5397103cff7e840e909371d236c7c.exe
    "C:\Users\Admin\AppData\Local\Temp\0913fb0f15766f114260988ca4ea9dfff0f5397103cff7e840e909371d236c7c.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3452
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2976
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0913fb0f15766f114260988ca4ea9dfff0f5397103cff7e840e909371d236c7c.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3092
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1824
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3580
  • 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:3620
  • 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:3756

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    ad89df7162567f3d54a9c7ec3760215a

    SHA1

    1d7cf73fdd07349242044abd2b8043ad56ce5774

    SHA256

    ca9159fa25338bb3e31388ad6e721031611b6c06e84ff8db0fa128493ee1901d

    SHA512

    dd179409cbed1ec7fb41fae1be424711e7cf6889e40b4af14b0e7626f246e6f59407beed1b1f82167f14e64cd7cfc82f9650d8d986167629771c24f0e10ec23f

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

    ad89df7162567f3d54a9c7ec3760215a

    SHA1

    1d7cf73fdd07349242044abd2b8043ad56ce5774

    SHA256

    ca9159fa25338bb3e31388ad6e721031611b6c06e84ff8db0fa128493ee1901d

    SHA512

    dd179409cbed1ec7fb41fae1be424711e7cf6889e40b4af14b0e7626f246e6f59407beed1b1f82167f14e64cd7cfc82f9650d8d986167629771c24f0e10ec23f