Analysis

  • max time kernel
    93s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-11-2024 07:58

General

  • Target

    a094b87a3207cbdd7a73635ef59abc1dcb7e2dad66b007b53fa11d1b213ca849.dll

  • Size

    953KB

  • MD5

    cf40c0b5a4271d742692ecfcf85ba7a1

  • SHA1

    5b006ed58a8038868260aa1628cff879d67c8650

  • SHA256

    a094b87a3207cbdd7a73635ef59abc1dcb7e2dad66b007b53fa11d1b213ca849

  • SHA512

    9e51e5aacdfcf38af5ee60eb788a003504c3512c1d50525ceaff42bccdf05ed16467713fd6677af89e7023cb98ab9d6889e58820262746b8c7f95196a4a41c44

  • SSDEEP

    12288:NPGmZJkU4SU1zuGCR3xouiQXf5UFDg5dsf+U2lz9PDd03gQ:NPGmZmgU1zuZR3tis5UtRf+pvd03gQ

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 5 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\a094b87a3207cbdd7a73635ef59abc1dcb7e2dad66b007b53fa11d1b213ca849.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a094b87a3207cbdd7a73635ef59abc1dcb7e2dad66b007b53fa11d1b213ca849.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3360
      • 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:896
        • 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:3400
          • 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:544
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:544 CREDAT:17410 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:1660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    471B

    MD5

    d2c6a662e9bd0c89bf8cd03b201f89bd

    SHA1

    7c019c00c24825eedda6b9fd3e200a39aa47771e

    SHA256

    08fec4715e35e941a8bc409fdafb8fab8c4b97e8883325b9082562eecc1cdca2

    SHA512

    332b7cf422c2f656208ad9add4b15ee0c4ee7ee0074f67be9b7af32e9b4b59d487250bedeed06cf1763c13fe0da82cefccc4ada975dd148bf686f9cad08fbefb

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

    Filesize

    404B

    MD5

    cb5ceecc454268c56933c4fffc2af934

    SHA1

    3a08b404d2c0d90d4a493d71f529a48dcbe769c0

    SHA256

    c44ee1e6e75ebf22c892d7d12898ccc7210e1b40a830523f2118a75a6873fdfc

    SHA512

    473a39c55a49e07995db7d360045050a7d0336c53368a5bea1be80f5968caac40c3d3406ccade101e5e4a9e6cc62cb9e11bfe2305a9ebb30fe55d67e0b341d3a

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\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/896-4-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/896-6-0x00000000005C0000-0x00000000005CF000-memory.dmp

    Filesize

    60KB

  • memory/896-7-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3360-1-0x0000000010000000-0x00000000100F7000-memory.dmp

    Filesize

    988KB

  • memory/3400-13-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3400-15-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3400-14-0x00000000005A0000-0x00000000005A1000-memory.dmp

    Filesize

    4KB