Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    29/03/2024, 21:10

General

  • Target

    503dedc4758ed147987b60cd85cb733d8066834d8f67c32945352d46c5d772e7.dll

  • Size

    348KB

  • MD5

    0890ffae079771502dde6378802ccb6f

  • SHA1

    b9bcba240c077f7c41f78bc963bfc1c7c4a1ba35

  • SHA256

    503dedc4758ed147987b60cd85cb733d8066834d8f67c32945352d46c5d772e7

  • SHA512

    e22fed1fe162c4a26cc9b2ec85bdd129d6523e6073ae39ea3c4c4bd7d5f799a1c7520963153b08660abf4a4e96f9c65dd6b4899d80c410d1513fd12635970e4d

  • SSDEEP

    3072:qfRBoKJlyQNZhF27Cr4LSz1RNeyOb2EqMGzs4VlS0q0EF:qpFHNrcur4LSz1RZOyEqMj4VlS0q0k

Malware Config

Signatures

  • Ramnit

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

  • UPX dump on OEP (original entry point) 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\503dedc4758ed147987b60cd85cb733d8066834d8f67c32945352d46c5d772e7.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\503dedc4758ed147987b60cd85cb733d8066834d8f67c32945352d46c5d772e7.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2968
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2920
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2920 -s 180
          4⤵
          • Program crash
          PID:2580

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\Temp\~TM189F.tmp

          Filesize

          1.2MB

          MD5

          d124f55b9393c976963407dff51ffa79

          SHA1

          2c7bbedd79791bfb866898c85b504186db610b5d

          SHA256

          ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

          SHA512

          278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

        • \Users\Admin\AppData\Local\Temp\~TM18BF.tmp

          Filesize

          1.1MB

          MD5

          9b98d47916ead4f69ef51b56b0c2323c

          SHA1

          290a80b4ded0efc0fd00816f373fcea81a521330

          SHA256

          96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

          SHA512

          68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

        • \Windows\SysWOW64\rundll32mgr.exe

          Filesize

          157KB

          MD5

          2ad7467eeceedd64b8bd4f6e04c3cd49

          SHA1

          d6c5d9878dc49ae9b531d61283609e207154a921

          SHA256

          2aab17b2f18dfb70cd737b27b1a438ad8878889070a6e025b3684483054f60c9

          SHA512

          7a647d4a8de90d11cd5afb82ace8354869af0893f28afcf9491d1d4de421315d9a394a5d3462d88c0eff6c5a7a4ed41897d8d0498b59b4b7428ddbb61786be2a

        • memory/2920-22-0x0000000000400000-0x0000000000432000-memory.dmp

          Filesize

          200KB

        • memory/2920-13-0x0000000000400000-0x0000000000432000-memory.dmp

          Filesize

          200KB

        • memory/2920-11-0x0000000000400000-0x0000000000432000-memory.dmp

          Filesize

          200KB

        • memory/2920-14-0x0000000000270000-0x00000000002A2000-memory.dmp

          Filesize

          200KB

        • memory/2920-24-0x00000000757B0000-0x00000000758C0000-memory.dmp

          Filesize

          1.1MB

        • memory/2920-23-0x0000000077930000-0x0000000077932000-memory.dmp

          Filesize

          8KB

        • memory/2920-19-0x0000000077930000-0x0000000077931000-memory.dmp

          Filesize

          4KB

        • memory/2920-18-0x000000007792F000-0x0000000077931000-memory.dmp

          Filesize

          8KB

        • memory/2968-9-0x0000000000270000-0x00000000002A2000-memory.dmp

          Filesize

          200KB

        • memory/2968-1-0x0000000010000000-0x0000000010057000-memory.dmp

          Filesize

          348KB

        • memory/2968-3-0x0000000000270000-0x00000000002A2000-memory.dmp

          Filesize

          200KB