Analysis

  • max time kernel
    150s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2024, 04:37

General

  • Target

    3872c8424f9c64577c514ccbcc2867aa_JaffaCakes118.exe

  • Size

    2.6MB

  • MD5

    3872c8424f9c64577c514ccbcc2867aa

  • SHA1

    0a1edbb92922c4ef281bdf88f7a5c3b42a3f1863

  • SHA256

    490a9ce96a93b966e075fb2cc13db811ff7793ba06c9e3228dfb8055feb958cf

  • SHA512

    0612072595796d850c01f38d8a5ce1d68bb3303d90740d949f567235a5c0dd853ff2de711dba379163f93b0b24696b7ddd9753b3d71c30c74dc6388a0a48d409

  • SSDEEP

    49152:tU/5M1X4Wl/YvzYCQR9RQs+C40yZpJaD99Gp:tKq4oEa9RQs+Cn4/UKp

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
  • Checks BIOS information in registry 2 TTPs 10 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 IoCs
  • Themida packer 19 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 5 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 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 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3872c8424f9c64577c514ccbcc2867aa_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3872c8424f9c64577c514ccbcc2867aa_JaffaCakes118.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2412
    • \??\c:\windows\resources\themes\explorer.exe
      c:\windows\resources\themes\explorer.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2116
      • \??\c:\windows\resources\spoolsv.exe
        c:\windows\resources\spoolsv.exe SE
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2784
        • \??\c:\windows\resources\svchost.exe
          c:\windows\resources\svchost.exe
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in System32 directory
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2912
          • \??\c:\windows\resources\spoolsv.exe
            c:\windows\resources\spoolsv.exe PR
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:2228
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:40 /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2828
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:41 /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:856
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 04:42 /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2420
      • C:\Windows\Explorer.exe
        C:\Windows\Explorer.exe
        3⤵
          PID:2864

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Resources\spoolsv.exe

      Filesize

      2.6MB

      MD5

      6f26454b201cc5650c4e890dc4d926ba

      SHA1

      bff98a984580c261a2a1e8ab6b7d8d1eee2fdf27

      SHA256

      4a0af19072ef619528f1996852328a4e92a04adece117d115d002f061d95b5b4

      SHA512

      48fc9da1597f872cc6a18b4f52b859d95ea98164af6c44c9e353cc0c18549d66830668b45f18943d5829918006c9568c5273fc20da919d66838a4a60fc6cd4f3

    • \Windows\Resources\Themes\explorer.exe

      Filesize

      2.6MB

      MD5

      c7b547a810decadeb108a61ff10c1b44

      SHA1

      a5b0b1c0e5defc43b1148df266f837a266fff986

      SHA256

      b9cebce9a1db6f93a1180958c32cbdc792a4d3e930195aa4c150b87d5bb0170f

      SHA512

      0bac7ee6357b73e51281022a8154dfad6090cd933dcb042e7e37480b0aff5c866fb1d4e6ab9835540ffd4cbc6f5ba73de3623bed003fc6b3a7c75f1256e96065

    • \Windows\Resources\svchost.exe

      Filesize

      2.6MB

      MD5

      f5ba7846d3a51eda0d435345fa66e20b

      SHA1

      2a6e4c51155a074ae2ead1f795d89054c0a0c462

      SHA256

      bfc71d753229c55c0228ce2a77d5c575c4019a5620bcd48d82b2e1c611ef10c7

      SHA512

      3766e5fbb448819194cd5ed695ed0427ca9af695ddd333e9f27783badd6da447fce627e7972c52eaa8a68220b2f83c5316b66849e26e54cc83bb94f39d284d95

    • memory/2116-79-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2116-11-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2116-22-0x0000000003480000-0x0000000003A97000-memory.dmp

      Filesize

      6.1MB

    • memory/2116-69-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2116-67-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2116-54-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2228-46-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2228-41-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2412-50-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2412-51-0x00000000032E0000-0x00000000038F7000-memory.dmp

      Filesize

      6.1MB

    • memory/2412-0-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2412-53-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2412-1-0x0000000077BA0000-0x0000000077BA2000-memory.dmp

      Filesize

      8KB

    • memory/2784-49-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2784-45-0x00000000032A0000-0x00000000038B7000-memory.dmp

      Filesize

      6.1MB

    • memory/2784-23-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2912-47-0x0000000003390000-0x00000000039A7000-memory.dmp

      Filesize

      6.1MB

    • memory/2912-56-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2912-38-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB

    • memory/2912-78-0x0000000000400000-0x0000000000A17000-memory.dmp

      Filesize

      6.1MB