Analysis

  • max time kernel
    178s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 06:10

General

  • Target

    10afa2f83f36d61d974a647f31f0fdc0c07d10236c9f49905f8c5e12bd10db91.exe

  • Size

    216KB

  • MD5

    b35358f26964918c18fbea4ca4c87ba2

  • SHA1

    573fd2586a2762d08a6a884c0becbbc003802aac

  • SHA256

    10afa2f83f36d61d974a647f31f0fdc0c07d10236c9f49905f8c5e12bd10db91

  • SHA512

    2dae6ae1ac5e138abb808e9c0c6f70cc35ebbf15f49f3488f66ef04d4371562b65ea9f824b2d4f6c3cf51e65fe7bb0679133cf893f2dd6156f7ac8d6dbf2973c

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 3 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\10afa2f83f36d61d974a647f31f0fdc0c07d10236c9f49905f8c5e12bd10db91.exe
    "C:\Users\Admin\AppData\Local\Temp\10afa2f83f36d61d974a647f31f0fdc0c07d10236c9f49905f8c5e12bd10db91.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2784
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:364
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\10afa2f83f36d61d974a647f31f0fdc0c07d10236c9f49905f8c5e12bd10db91.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1228
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2124
  • 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:3960
  • 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:3392

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    12c228e86cff2dde1fd7da9288207e7f

    SHA1

    95ce83d6a19fbfb9fa9db6e7887a2b60bec44413

    SHA256

    1897518cc610f6737e5f39c776d1cbfaa4c89c409389bcc08f64074175574fa8

    SHA512

    4e40d7bc263509b14572427bc7c80fe1c836214606efb5ea38939aaca0ea1d76a5e8ca32e546560d5c7360fd6dcc7a4601eef023fefa5dfdda83ae4d35c72610

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

    MD5

    12c228e86cff2dde1fd7da9288207e7f

    SHA1

    95ce83d6a19fbfb9fa9db6e7887a2b60bec44413

    SHA256

    1897518cc610f6737e5f39c776d1cbfaa4c89c409389bcc08f64074175574fa8

    SHA512

    4e40d7bc263509b14572427bc7c80fe1c836214606efb5ea38939aaca0ea1d76a5e8ca32e546560d5c7360fd6dcc7a4601eef023fefa5dfdda83ae4d35c72610

  • memory/2784-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB