Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    09/07/2024, 09:09

General

  • Target

    2fc3938e7c3a626b209d0c859e4736f2_JaffaCakes118.exe

  • Size

    327KB

  • MD5

    2fc3938e7c3a626b209d0c859e4736f2

  • SHA1

    8bcd45d85ed8ed2a105952f1677673e711adf63b

  • SHA256

    68518254186ecfa86797c7ee18425cada7b24da2c03f029a04fecff55419c1ae

  • SHA512

    998b88d5a53826d9841a3ab1845e47544acdd27595a388a4ef86bf0705a5d90cd98bbbd9c51c2001f40e1d834f2ed653e4f6d69b3eeb92f44182d91e9e23fa9d

  • SSDEEP

    6144:g7QnQKYfebCvP87yYJKKgBlLxYFFCMoi2AyCfFQ:gyQLfebCvPcyhBtxY7Gi2Ay

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2fc3938e7c3a626b209d0c859e4736f2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2fc3938e7c3a626b209d0c859e4736f2_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2820
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 2820 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\2fc3938e7c3a626b209d0c859e4736f2_JaffaCakes118.exe" & start C:\Users\Admin\AppData\Local\bryjui.exe -f
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2596
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 2820
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2624
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:2644
      • C:\Users\Admin\AppData\Local\bryjui.exe
        C:\Users\Admin\AppData\Local\bryjui.exe -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    327KB

    MD5

    2fc3938e7c3a626b209d0c859e4736f2

    SHA1

    8bcd45d85ed8ed2a105952f1677673e711adf63b

    SHA256

    68518254186ecfa86797c7ee18425cada7b24da2c03f029a04fecff55419c1ae

    SHA512

    998b88d5a53826d9841a3ab1845e47544acdd27595a388a4ef86bf0705a5d90cd98bbbd9c51c2001f40e1d834f2ed653e4f6d69b3eeb92f44182d91e9e23fa9d

  • memory/2008-12-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-18-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-26-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-25-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-24-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-15-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-16-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-14-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-23-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-13-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-22-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-19-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-20-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2008-21-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2820-6-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2820-3-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2820-0-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB

  • memory/2820-1-0x000000000109E000-0x000000000109F000-memory.dmp

    Filesize

    4KB

  • memory/2820-4-0x0000000001000000-0x00000000010A5000-memory.dmp

    Filesize

    660KB