Analysis

  • max time kernel
    149s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/10/2024, 09:26

General

  • Target
    2ea9a754c4b1b76dfb1c61e276047788_JaffaCakes118.exe
  • Size 156KB
  • Sample241009-lekscstfpr
  • SHA256 a720168be35c26ca77f9895a1f919b8ce0f8c744a5a733075f760c61336b1c3a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Renames multiple (215) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2ea9a754c4b1b76dfb1c61e276047788_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2ea9a754c4b1b76dfb1c61e276047788_JaffaCakes118.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:112
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      2⤵
        PID:852
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:336
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          PID:4960
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$a8230.bat
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1548
        • C:\Users\Admin\AppData\Local\Temp\2ea9a754c4b1b76dfb1c61e276047788_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\2ea9a754c4b1b76dfb1c61e276047788_JaffaCakes118.exe"
          3⤵
          • Executes dropped EXE
          PID:452
      • C:\Windows\Logo1_.exe
        C:\Windows\Logo1_.exe
        2⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:824
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1556
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:1972
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3824
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:4044

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          7z.exe.Exe

          • Path C:\Program Files\7-Zip\7z.exe.Exe
          • Size 639KB
          • SHA256 2d535731f4ae6df4c91cea0826196e536e248dadb9a38ccb4052fea5c90eba07
          • MD5 SHA1 SHA512 SSDEEP

          $$a8230.bat

          • Path C:\Users\Admin\AppData\Local\Temp\$$a8230.bat
          • Size 614B
          • SHA256 8bb39d2f44b5387cfb13212e4852b9754d59e352b0695785865b57a13f43ceb6
          • MD5 SHA1 SHA512

          2ea9a754c4b1b76dfb1c61e276047788_JaffaCakes118.exe.exe

          • Path C:\Users\Admin\AppData\Local\Temp\2ea9a754c4b1b76dfb1c61e276047788_JaffaCakes118.exe.exe
          • Size 61KB
          • SHA256 85694d5c264af2f33be3a73c5ae593f3bc0b013fa15e84e02b3515c03ea27b4c
          • MD5 SHA1 SHA512 SSDEEP

          jpy97d8.dll

          • Path C:\Users\Admin\AppData\Local\Temp\jpy97d8.dll
          • Size 29KB
          • SHA256 63c7cf8ebd1b9e8423ff81c01e41cce0910ffdb1914888e4aa647a0f66ed1e1c
          • MD5 SHA1 SHA512 SSDEEP

          Logo1_.exe

          • Path C:\Windows\Logo1_.exe
          • Size 95KB
          • SHA256 9447a6e3b7a0ea46f6ff52f5d9ec48e8ef6b47881f1a1f724097de21e180201f
          • MD5 SHA1 SHA512 SSDEEP

          hosts

          • Path C:\Windows\system32\drivers\etc\hosts
          • Size 842B
          • SHA256 d9704dab05e988be3e5e7b7c020bb9814906d11bb9c31ad80d4ed1316f6bc94e
          • MD5 SHA1 SHA512

          memory/112-6-0x0000000000540000-0x0000000000560000-memory.dmp

          memory/112-21-0x0000000000400000-0x000000000044F000-memory.dmp

          memory/112-22-0x0000000010000000-0x0000000010018000-memory.dmp

          memory/112-9-0x0000000000520000-0x0000000000540000-memory.dmp

          memory/112-0-0x0000000000400000-0x000000000044F000-memory.dmp

          memory/112-5-0x0000000010000000-0x0000000010018000-memory.dmp

          memory/452-31-0x0000000000400000-0x000000000040D000-memory.dmp

          memory/824-25-0x0000000000400000-0x000000000044F000-memory.dmp

          memory/824-24-0x0000000000550000-0x0000000000590000-memory.dmp

          memory/824-23-0x0000000010000000-0x0000000010018000-memory.dmp

          memory/824-35-0x0000000000550000-0x0000000000590000-memory.dmp

          memory/824-36-0x0000000010000000-0x0000000010018000-memory.dmp

          memory/824-37-0x0000000000400000-0x000000000044F000-memory.dmp

          memory/824-26-0x0000000000530000-0x0000000000550000-memory.dmp