Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03/11/2024, 05:10

General

  • Target

    89c742b35826d51946f74631288c1171_JaffaCakes118.exe

  • Size

    3.4MB

  • MD5

    89c742b35826d51946f74631288c1171

  • SHA1

    8ea9f21f502a5af0143e363b0d05e74ffeef638d

  • SHA256

    01ca2ff67af9d0c5881b6936157e9fbe697ea05174847a565ffc1c9b062a5b0a

  • SHA512

    f1a09dd21c9b7527191d511341d05528e2a8c31494db86307943ae8efff4f1b0eb93cf70b08baf83e353b5e353c2bffd59702ef02d473ed0793d49a82914f9c9

  • SSDEEP

    49152:d/xDnN4g3oFI/6OeutxOtkNs3UeJS6Rth+oqSOd+z7CvSCxgywSlgkvTj6YtR:d5FYi/6DKOt0qtJ3hvDwxZ91v3t

Malware Config

Signatures

  • Stops running service(s) 4 TTPs
  • Uses Session Manager for persistence 2 TTPs 3 IoCs

    Creates Session Manager registry key to run executable early in system boot.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\89c742b35826d51946f74631288c1171_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\89c742b35826d51946f74631288c1171_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn startt /tr c:\autoexec.bat /sc onstart /ru system
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2084
    • C:\Windows\SysWOW64\sc.exe
      sc delete GbpSv
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2504
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\ControlSet001\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      • System Location Discovery: System Language Discovery
      PID:2380
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\ControlSet002\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      • System Location Discovery: System Language Discovery
      PID:2368
    • C:\Windows\SysWOW64\reg.exe
      reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session manager" /v BootExecute /t REG_MULTI_SZ /d "autocheck autochk *" /f
      2⤵
      • Uses Session Manager for persistence
      • System Location Discovery: System Language Discovery
      PID:2100

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2104-0-0x0000000000270000-0x0000000000271000-memory.dmp

          Filesize

          4KB

        • memory/2104-3-0x0000000000270000-0x0000000000271000-memory.dmp

          Filesize

          4KB

        • memory/2104-2-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-4-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-5-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-6-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-7-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-8-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-9-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-10-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-11-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-12-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-13-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-14-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-15-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB

        • memory/2104-16-0x0000000000400000-0x0000000001A14000-memory.dmp

          Filesize

          22.1MB