Analysis

  • max time kernel
    150s
  • max time network
    85s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 02:22

General

  • Target

    JaffaCakes118_43bf7dd7ae653cc429a476f4812c44f2.dll

  • Size

    168KB

  • MD5

    43bf7dd7ae653cc429a476f4812c44f2

  • SHA1

    e30793ba85d988546b9db073abfbb8bf15617a2a

  • SHA256

    2d549f2949ac1525fca397baf8ec6b932e4734380c8ae9614e845af4ba7f660b

  • SHA512

    64656c338637377207c1e8df7cbc3dfa66a695940dd0927ed816d5c30afa4873a0786b9b1d3b0751ea2626677ac6253aa8b71b04012fcc2a48421776e4a3c78d

  • SSDEEP

    3072:w7nmEOsOmajrUSjh1U7SfmS7UZZF3n4DtJQETeJ6MjtxeTU6dsLBqBMlSd/EXUKV:w7mEOs1ajrUSjh1U7SfvUZZFvT9eTLdu

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • UAC bypass 3 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Impair Defenses: Safe Mode Boot 1 TTPs 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_43bf7dd7ae653cc429a476f4812c44f2.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_43bf7dd7ae653cc429a476f4812c44f2.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1552
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2704
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:2148
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
          • Modifies WinLogon for persistence
          • UAC bypass
          • Checks BIOS information in registry
          • Drops startup file
          • Impair Defenses: Safe Mode Boot
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2996
        • C:\Users\Admin\AppData\Local\Temp\kgwojlfrjdvvwhjo.exe
          "C:\Users\Admin\AppData\Local\Temp\kgwojlfrjdvvwhjo.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:1444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\SysWOW64\rundll32mgr.exe

    Filesize

    88KB

    MD5

    e34d08915eba534585b74b885b587811

    SHA1

    aa7dbe6413697bccc12e10984d34b18b29b82392

    SHA256

    5f52464b6c257b2065441998b0d3e71dac1e5453d18d4c86c24b43fd0d298a37

    SHA512

    99d00fc033aef4cf0921c59494348ae1aec931771e2b514937de282cc1c2b5487d508aeffcdc285c5d82bdea9c369aeb29979fd21df589f59f04ec1712eb931b

  • memory/1444-95-0x0000000000400000-0x00000000004321C8-memory.dmp

    Filesize

    200KB

  • memory/1444-89-0x0000000000400000-0x00000000004321C8-memory.dmp

    Filesize

    200KB

  • memory/1552-16-0x00000000002C0000-0x00000000002F3000-memory.dmp

    Filesize

    204KB

  • memory/1552-4-0x00000000002C0000-0x00000000002F3000-memory.dmp

    Filesize

    204KB

  • memory/1552-0-0x0000000010000000-0x000000001002B000-memory.dmp

    Filesize

    172KB

  • memory/2148-32-0x0000000020010000-0x000000002001C000-memory.dmp

    Filesize

    48KB

  • memory/2148-33-0x0000000020010000-0x000000002001C000-memory.dmp

    Filesize

    48KB

  • memory/2148-31-0x0000000020010000-0x000000002001C000-memory.dmp

    Filesize

    48KB

  • memory/2148-30-0x0000000000060000-0x0000000000061000-memory.dmp

    Filesize

    4KB

  • memory/2148-20-0x0000000000050000-0x0000000000051000-memory.dmp

    Filesize

    4KB

  • memory/2148-25-0x0000000000050000-0x0000000000051000-memory.dmp

    Filesize

    4KB

  • memory/2148-24-0x0000000000070000-0x0000000000071000-memory.dmp

    Filesize

    4KB

  • memory/2148-18-0x0000000020010000-0x000000002001C000-memory.dmp

    Filesize

    48KB

  • memory/2148-27-0x0000000020010000-0x000000002001C000-memory.dmp

    Filesize

    48KB

  • memory/2704-48-0x00000000774DF000-0x00000000774E0000-memory.dmp

    Filesize

    4KB

  • memory/2704-9-0x000000000042A000-0x0000000000433000-memory.dmp

    Filesize

    36KB

  • memory/2704-11-0x0000000000400000-0x00000000004321C8-memory.dmp

    Filesize

    200KB

  • memory/2704-13-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/2704-15-0x0000000000400000-0x00000000004321C8-memory.dmp

    Filesize

    200KB

  • memory/2704-14-0x00000000002B0000-0x00000000002B1000-memory.dmp

    Filesize

    4KB

  • memory/2704-47-0x00000000774E0000-0x00000000774E1000-memory.dmp

    Filesize

    4KB

  • memory/2704-7-0x0000000000400000-0x00000000004321C8-memory.dmp

    Filesize

    200KB

  • memory/2704-10-0x0000000000400000-0x00000000004321C8-memory.dmp

    Filesize

    200KB

  • memory/2704-62-0x00000000774E0000-0x00000000774E1000-memory.dmp

    Filesize

    4KB

  • memory/2704-87-0x00000000774DF000-0x00000000774E0000-memory.dmp

    Filesize

    4KB

  • memory/2704-74-0x0000000000400000-0x00000000004321C8-memory.dmp

    Filesize

    200KB

  • memory/2996-63-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-98-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-55-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-61-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-37-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-43-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-96-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-54-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-99-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-100-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-101-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-102-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-103-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-104-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB

  • memory/2996-105-0x0000000020010000-0x0000000020024000-memory.dmp

    Filesize

    80KB