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Analysis

  • max time kernel
    147s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2024, 17:25

General

  • Target

    3b39c4b479f96d696aa4cc32729c1b5b_JaffaCakes118.exe

  • Size

    325KB

  • MD5

    3b39c4b479f96d696aa4cc32729c1b5b

  • SHA1

    875819724c5c3102fb9802f14d47e03919fa6463

  • SHA256

    07297b79dce665d67c713bf2905f4ca345bfb8f4e797e19b544ce01e2edcf6f2

  • SHA512

    2de3def8794f1bd1d560298620158ebe3d685894d0291fbc924b97eb96e1582dc795f3dd959a4c481cecf45fb0346446d3d5fd1fd16d4a964346c2866b57a416

  • SSDEEP

    6144:qd29rwyX+G5WgDYngob0nX4bjpwCdhAxIcojc8NQIn+/Nw+Sos5:T3DYBtb5Axic8NQI+/i+ls5

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b39c4b479f96d696aa4cc32729c1b5b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3b39c4b479f96d696aa4cc32729c1b5b_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2904
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 2904 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3b39c4b479f96d696aa4cc32729c1b5b_JaffaCakes118.exe" & start C:\Users\Admin\AppData\Local\ynxecr.exe -f
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:884
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 2904
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1728
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2796
      • C:\Users\Admin\AppData\Local\ynxecr.exe
        C:\Users\Admin\AppData\Local\ynxecr.exe -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2084

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\ynxecr.exe

    Filesize

    325KB

    MD5

    3b39c4b479f96d696aa4cc32729c1b5b

    SHA1

    875819724c5c3102fb9802f14d47e03919fa6463

    SHA256

    07297b79dce665d67c713bf2905f4ca345bfb8f4e797e19b544ce01e2edcf6f2

    SHA512

    2de3def8794f1bd1d560298620158ebe3d685894d0291fbc924b97eb96e1582dc795f3dd959a4c481cecf45fb0346446d3d5fd1fd16d4a964346c2866b57a416

  • memory/2084-22-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-19-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-29-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-28-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-27-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-26-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-11-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-12-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-16-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-15-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-25-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-20-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-14-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-21-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2084-23-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2904-0-0x00000000008E0000-0x00000000008E1000-memory.dmp

    Filesize

    4KB

  • memory/2904-4-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2904-1-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2904-6-0x0000000001001000-0x00000000010C0000-memory.dmp

    Filesize

    764KB

  • memory/2904-5-0x0000000001000000-0x00000000010CF000-memory.dmp

    Filesize

    828KB

  • memory/2904-3-0x0000000001001000-0x00000000010C0000-memory.dmp

    Filesize

    764KB