Analysis

  • max time kernel
    167s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:14

General

  • Target

    108269352e437295cb1784b399f592fc4b7c9e67ac581540b16aa9452de06776.exe

  • Size

    92KB

  • MD5

    b83eaff287bfefe90c40b8964bb313ef

  • SHA1

    2092e4b5d38e3e2943ee5d135c27d87f190181c6

  • SHA256

    108269352e437295cb1784b399f592fc4b7c9e67ac581540b16aa9452de06776

  • SHA512

    e9bae2121b952979f673c78631b596e3ceb1195ae4cd7382e41aafe7639b6641be37eb4e451ded3b95a114a72815ac5500f6b2c39b1a5ec9c045ca1c642d9a45

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\108269352e437295cb1784b399f592fc4b7c9e67ac581540b16aa9452de06776.exe
    "C:\Users\Admin\AppData\Local\Temp\108269352e437295cb1784b399f592fc4b7c9e67ac581540b16aa9452de06776.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1304
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\108269352e437295cb1784b399f592fc4b7c9e67ac581540b16aa9452de06776.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1888
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2228
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3456
  • 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:1316
  • 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:824

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    295091471a577cdf4fa16a0e02fdb515

    SHA1

    bc464400766245b88d2d259cbec0b533f6db92fe

    SHA256

    dce521146101d13c1472ed02a1ca8b06973000c844c78ae22da7246ef3447131

    SHA512

    06e50565d8b635c200b98d725b9a828b4bea3ce04072ab3ab6b7f2b3fafe078833cb888a7cb7986d2be910309c44a88c8a372be7d1d98056f8d6965d482b5418

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

    MD5

    295091471a577cdf4fa16a0e02fdb515

    SHA1

    bc464400766245b88d2d259cbec0b533f6db92fe

    SHA256

    dce521146101d13c1472ed02a1ca8b06973000c844c78ae22da7246ef3447131

    SHA512

    06e50565d8b635c200b98d725b9a828b4bea3ce04072ab3ab6b7f2b3fafe078833cb888a7cb7986d2be910309c44a88c8a372be7d1d98056f8d6965d482b5418