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Analysis

  • max time kernel
    94s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2024, 10:45

General

  • Target

    4c7e9d40b99d411e7c565f57c0a25a9b857cb9d55d0117e20253e515a62ecccfN.dll

  • Size

    112KB

  • MD5

    cdf953ab2d4419f1d56c55225f259ca0

  • SHA1

    ae34a2e019bdf193502f45b12b5b0247b598d0c0

  • SHA256

    4c7e9d40b99d411e7c565f57c0a25a9b857cb9d55d0117e20253e515a62ecccf

  • SHA512

    a7f15984692cc8964d7f35c2a8c107eb4c1149ed8158e57a0a8ecfbffd40cc5e3c2bc458928219dadb75166604ef38fc9788f7962c71fa5753e047c4f86dd00a

  • SSDEEP

    1536:fwKq8q9fvGBgjwtjKmbWvPnkEaH9KoMlftStqnvjI997F33W5sf1:IKkvGB5t2mbX9wt8/5Gmf1

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 6 IoCs

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

  • Drops file in Program Files directory 3 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 30 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c7e9d40b99d411e7c565f57c0a25a9b857cb9d55d0117e20253e515a62ecccfN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3284
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\4c7e9d40b99d411e7c565f57c0a25a9b857cb9d55d0117e20253e515a62ecccfN.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4508
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2732
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1968
          • 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:1304
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1304 CREDAT:17410 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:3572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    442f2149a2677d6452319fd147903a7d

    SHA1

    0d4d3aacb7eb8b19c3856a770d96626a8323e7db

    SHA256

    7d0e2aad4d879f8a8bc62e6dc5c62964ac32317066428949f3a2b1b8331d8dfc

    SHA512

    c27ac496b39316dcaa2fdfd47ecc3d9707fc926cf5c5d1ea5d4d79c8c9d31670607b11d291f226e2795c9bd40ae2a8b4ce3a4c659f6e4647041153cfc6c16654

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    0f9ce386ed56b5f6d52d99b25efa3260

    SHA1

    05928f710a0f879f51b6df29a3aefd9b2c694895

    SHA256

    79357c19615292e5fbd613c11f87bbd17b64094b5eb727f42fd06ef65ca939fb

    SHA512

    3288355283f3954a0a1e6fae18d1a02e56eb7672c043e91dbdda5e2803abfe28224f2070d8d46d3c910a5b13dcebb116de42cc3601f6f105e301b191ceffc571

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\P2UT3MS5\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Windows\SysWOW64\rundll32Srv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/1968-15-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1968-17-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1968-14-0x0000000000490000-0x0000000000491000-memory.dmp

    Filesize

    4KB

  • memory/1968-12-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2732-4-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2732-6-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2732-5-0x0000000000480000-0x000000000048F000-memory.dmp

    Filesize

    60KB

  • memory/4508-0-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB