Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21/10/2024, 08:58

General

  • Target

    663875e015dd282302a9cac9ab98104b_JaffaCakes118.dll

  • Size

    332KB

  • MD5

    663875e015dd282302a9cac9ab98104b

  • SHA1

    9713ff0dda9aabca3fac9fcc393135166e11e03e

  • SHA256

    7fa7565e111626b66a5369ad3a19945dcc2a42c951c86aaeba12435734d059d1

  • SHA512

    8f685ac037efe1e538ed843c0c0c2107b5291faaee1f49104021f73ebdbe300a51c6d94df3f942bb0180dcd8c5c67010376a5b8c46aa4a2fc799348dcb37670e

  • SSDEEP

    6144:JdnEhp9wz7bbNFGqVPirWVf6uLJ0Q+Q7jkRrED7I0PNOT:JZEhszXbNFUrCNLJl7kJEQ0

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Disables taskbar notifications via registry modification
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies system executable filetype association 2 TTPs 17 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 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies registry class 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of FindShellTrayWindow 37 IoCs
  • Suspicious use of SendNotifyMessage 19 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\663875e015dd282302a9cac9ab98104b_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\663875e015dd282302a9cac9ab98104b_JaffaCakes118.dll,#1
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2516
      • C:\Users\Admin\AppData\Local\tim.exe
        "C:\Users\Admin\AppData\Local\tim.exe" -gav C:\Users\Admin\AppData\Local\Temp\663875e015dd282302a9cac9ab98104b_JaffaCakes118.dll
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Modifies system executable filetype association
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:1824
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2100

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          332KB

          MD5

          d5dea36c443b95deac1280b776bbe122

          SHA1

          03043bb6dffb1ab1798a3ca7ef7d6a043d3758f3

          SHA256

          bbf14a4ab1513dfa19932d3db7622bae2729dfdea6ff6efc0bd87cd668113105

          SHA512

          39ad3b86403b9cb7113a1c571295da6363ae246d9d2edcbd6ba39cc45d7e9f2bf169602e766a260871b9135c24418deed77ad1db8bce7e431d27bad731665999

        • memory/1824-29-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-15-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-35-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-33-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-32-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-31-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-20-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-16-0x0000000000401000-0x00000000005E4000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-17-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-18-0x0000000000401000-0x00000000005E4000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-30-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-19-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-28-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-22-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-23-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-24-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/1824-21-0x0000000000400000-0x00000000005EF000-memory.dmp

          Filesize

          1.9MB

        • memory/2100-34-0x0000000002B00000-0x0000000002B10000-memory.dmp

          Filesize

          64KB

        • memory/2516-0-0x0000000000170000-0x000000000017C000-memory.dmp

          Filesize

          48KB

        • memory/2516-2-0x00000000020C1000-0x00000000022A4000-memory.dmp

          Filesize

          1.9MB

        • memory/2516-12-0x00000000020C1000-0x00000000022A4000-memory.dmp

          Filesize

          1.9MB

        • memory/2516-13-0x00000000020C0000-0x00000000022AF000-memory.dmp

          Filesize

          1.9MB

        • memory/2516-1-0x00000000020C0000-0x00000000022AF000-memory.dmp

          Filesize

          1.9MB

        • memory/2516-4-0x00000000020C0000-0x00000000022AF000-memory.dmp

          Filesize

          1.9MB