Analysis

  • max time kernel
    165s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 05:34

General

  • Target

    125c286ae99f2dda8188dafd5ba3ddd093c6c8f8f11a64c0e7b642fc85c7ee6f.exe

  • Size

    176KB

  • MD5

    60b6116568bbd2533157dc5a98bcccdc

  • SHA1

    57a67cf4785b958594b88138144cf68c0b01d827

  • SHA256

    125c286ae99f2dda8188dafd5ba3ddd093c6c8f8f11a64c0e7b642fc85c7ee6f

  • SHA512

    b9ebbc6a02f3af0f1a9c7e7f2aced50d5e7c80b639a16f5a39fa90ff7657506df67c1950601425f47359cf7684365722136348dceb05129a250a0860172de00c

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 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\125c286ae99f2dda8188dafd5ba3ddd093c6c8f8f11a64c0e7b642fc85c7ee6f.exe
    "C:\Users\Admin\AppData\Local\Temp\125c286ae99f2dda8188dafd5ba3ddd093c6c8f8f11a64c0e7b642fc85c7ee6f.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4072
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3900
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\125c286ae99f2dda8188dafd5ba3ddd093c6c8f8f11a64c0e7b642fc85c7ee6f.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:448
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1880
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3672
  • 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:844
  • 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:3268

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    b086398065d6c218a5f83496e368b02c

    SHA1

    bde5d3338689e930be7485dbf1cc798ed6da2a63

    SHA256

    8fdc53efc79d78aedb486a0e81541a5ad5c309b9f64899271215d67a43708acb

    SHA512

    9c476eb2e8c17558e3f5fe08396ba780ff35529d5bd9b011d507cab4a2846263d5d46dab1b0f599e7e09ced655cdddd8ea76844b071350006d088af8631ae734

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

    MD5

    b086398065d6c218a5f83496e368b02c

    SHA1

    bde5d3338689e930be7485dbf1cc798ed6da2a63

    SHA256

    8fdc53efc79d78aedb486a0e81541a5ad5c309b9f64899271215d67a43708acb

    SHA512

    9c476eb2e8c17558e3f5fe08396ba780ff35529d5bd9b011d507cab4a2846263d5d46dab1b0f599e7e09ced655cdddd8ea76844b071350006d088af8631ae734

  • memory/3900-133-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4072-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB