Analysis

  • max time kernel
    153s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:30

General

  • Target

    09d86b71349d606dde0ab4051fa1ea577c6c9b82f4d2ca02b0092106ce3328a6.exe

  • Size

    79KB

  • MD5

    df81e53f7f9555a9a45ac8a3640365c8

  • SHA1

    0b4783970261603616b859fee685e5ed1b63baf7

  • SHA256

    09d86b71349d606dde0ab4051fa1ea577c6c9b82f4d2ca02b0092106ce3328a6

  • SHA512

    e564e0a2cf2245f6823c740b80bdf2a3c4a0ed58e51be1a4646838f6b0943c743c9883063e84c9fb99df63d913b5e71cea1cf08745bf0d34951f0d563de90b60

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 55 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\09d86b71349d606dde0ab4051fa1ea577c6c9b82f4d2ca02b0092106ce3328a6.exe
    "C:\Users\Admin\AppData\Local\Temp\09d86b71349d606dde0ab4051fa1ea577c6c9b82f4d2ca02b0092106ce3328a6.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:3612
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3980
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09d86b71349d606dde0ab4051fa1ea577c6c9b82f4d2ca02b0092106ce3328a6.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2120
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1292
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3632
  • 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:3636
  • 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:3868

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    1a482ebcf840050040729f6ebd906315

    SHA1

    bb68a2c7d9267bd8c4f9a1df46047661381d0af4

    SHA256

    739a8a54af12271d00866389f029d2b658997faca4be3a8dac7db124b75c20d9

    SHA512

    c5d5f29ba28f14bcda9efb13d36bc4ed42bc4e8de3c9179990b7507e612a5fa8d4b3803982e57d5c921100e1997aef4ecd6f81a3003143efb78fd722b681f546

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

    1a482ebcf840050040729f6ebd906315

    SHA1

    bb68a2c7d9267bd8c4f9a1df46047661381d0af4

    SHA256

    739a8a54af12271d00866389f029d2b658997faca4be3a8dac7db124b75c20d9

    SHA512

    c5d5f29ba28f14bcda9efb13d36bc4ed42bc4e8de3c9179990b7507e612a5fa8d4b3803982e57d5c921100e1997aef4ecd6f81a3003143efb78fd722b681f546