Analysis

  • max time kernel
    94s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/11/2024, 14:33

General

  • Target
    9c96a3460dcec9d206e695c9595108aaddde6f33ba6f8067ac19d492f87712f2.dll
  • Size 4.8MB
  • Sample241111-rwxfda1apf
  • SHA256 9c96a3460dcec9d206e695c9595108aaddde6f33ba6f8067ac19d492f87712f2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 13 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 33 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\9c96a3460dcec9d206e695c9595108aaddde6f33ba6f8067ac19d492f87712f2.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4360
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\9c96a3460dcec9d206e695c9595108aaddde6f33ba6f8067ac19d492f87712f2.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3868
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:2756
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:3496
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:2880
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2880 -s 204
                6⤵
                • Program crash
                PID:2012
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:4728
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4728 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4500
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              PID:4140
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2880 -ip 2880
      1⤵
        PID:4400

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 471B
            • SHA256 c66e4655524d70901b0e460076e5088f0033d09c7c8f175e05221569cf572e13
            • MD5 SHA1 SHA512

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 404B
            • SHA256 821c59ab898ffb682be2819ea58e00450061c3ce6da6264db289a8e83f70a7db
            • MD5 SHA1 SHA512

            verFE9.tmp

            • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verFE9.tmp
            • Size 15KB
            • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
            • MD5 SHA1 SHA512 SSDEEP

            suggestions[1].en-US

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\suggestions[1].en-US
            • Size 17KB
            • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
            • MD5 SHA1 SHA512 SSDEEP

            rundll32mgr.exe

            • Path C:\Windows\SysWOW64\rundll32mgr.exe
            • Size 112KB
            • SHA256 9f9304bc206947b1b6790d6c3498dd5293816d221133d5bfe5501bf355758207
            • MD5 SHA1 SHA512 SSDEEP

            memory/2756-7-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2756-16-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2756-10-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2756-5-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/2756-6-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2756-8-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2756-13-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2756-12-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/2756-11-0x00000000001A0000-0x00000000001A1000-memory.dmp

            memory/2880-34-0x0000000000D40000-0x0000000000D41000-memory.dmp

            memory/2880-33-0x0000000000D60000-0x0000000000D61000-memory.dmp

            memory/3496-28-0x0000000000430000-0x0000000000431000-memory.dmp

            memory/3496-31-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3496-32-0x0000000077C92000-0x0000000077C93000-memory.dmp

            memory/3496-36-0x0000000000070000-0x0000000000071000-memory.dmp

            memory/3496-37-0x0000000077C92000-0x0000000077C93000-memory.dmp

            memory/3496-38-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/3496-39-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3496-41-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3496-35-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/3496-29-0x0000000000400000-0x0000000000421000-memory.dmp

            memory/3496-23-0x0000000000400000-0x0000000000436000-memory.dmp

            memory/3868-1-0x0000000006000000-0x00000000064CE000-memory.dmp