Analysis

  • max time kernel
    93s
  • 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
    24-11-2024 07:42

General

  • Target

    8f04d4296a225ef0f5360071d8964a3b96f5e39b59877e1dc76477232f679cdaN.exe

  • Size

    3.9MB

  • MD5

    79b04a58d8e28818c4a67db3792a3800

  • SHA1

    2ad20e7c4ac2be596b3e3d727e3e4840f4b89f5e

  • SHA256

    8f04d4296a225ef0f5360071d8964a3b96f5e39b59877e1dc76477232f679cda

  • SHA512

    bdc21b7a441c661d37af449f438dda43b5611e1498ae6a38572a5317225c8d0bfb1d3333faaccc9b9c21ed3c40bbcde569f1be23d238bcb14409a6f0acfd8856

  • SSDEEP

    3072:4AyDhKVnYyNZHxs1pCUaMTTkoLzrOHh7+Cn537NPeWUX0ip3:4j1KVnd7xs1jOH/pNPeO

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • UPX packed file 5 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 32 IoCs
  • Modifies registry class 31 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f04d4296a225ef0f5360071d8964a3b96f5e39b59877e1dc76477232f679cdaN.exe
    "C:\Users\Admin\AppData\Local\Temp\8f04d4296a225ef0f5360071d8964a3b96f5e39b59877e1dc76477232f679cdaN.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Users\Admin\AppData\Local\Temp\8f04d4296a225ef0f5360071d8964a3b96f5e39b59877e1dc76477232f679cdaNSrv.exe
      C:\Users\Admin\AppData\Local\Temp\8f04d4296a225ef0f5360071d8964a3b96f5e39b59877e1dc76477232f679cdaNSrv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4532
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3156
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3964
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3964 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3656

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

    7fecd001d472e28495336306d3e0b570

    SHA1

    7dabf5687a11d1d8f92f8ffd348fb73bf077e960

    SHA256

    d3b1b54dfa02ea5cf017cd692023d382defa55e40749816bbddcc3e8ef5e9bff

    SHA512

    5255e2e7897f3abc246464dacea7d32b54a8bdb88806e9d0f54a3d23e76074e2a88adaa35789c32b68d0ca8d6f67726c9ceec31597f3b05628b29cd52af613db

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

    Filesize

    404B

    MD5

    9d2540d0d9e1081f06b92e6131f71ea8

    SHA1

    2ee3a638beb2525a6f3ee3cdc61471ec00b99614

    SHA256

    74b29984ccb5b1add80561d58ff300c1c9b4e598cffc2b3ed0c7622234647877

    SHA512

    da6df86c9aea7d41219cdfc062e29dcd10ca0722f7d442e97434eb64ccd6484c503d1bed9f7b7d0832014de7900c0322dc89bc09ec76790cfe29d0efcb3ee3b3

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver122B.tmp

    Filesize

    15KB

    MD5

    1a545d0052b581fbb2ab4c52133846bc

    SHA1

    62f3266a9b9925cd6d98658b92adec673cbe3dd3

    SHA256

    557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

    SHA512

    bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Temp\8f04d4296a225ef0f5360071d8964a3b96f5e39b59877e1dc76477232f679cdaNSrv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/3156-13-0x0000000000560000-0x0000000000561000-memory.dmp

    Filesize

    4KB

  • memory/3156-12-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3156-14-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4532-3-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4532-6-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4532-4-0x0000000000560000-0x000000000056F000-memory.dmp

    Filesize

    60KB