Analysis

  • max time kernel
    95s
  • max time network
    149s
  • 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 04:13

General

  • Target

    39176b24223d03d6c8701d6b52a895dd42842588af0b6e017e7c9c8cd08975b3.exe

  • Size

    103KB

  • MD5

    1bc429b6743105b5951d3bd01e4ff245

  • SHA1

    fd773e9f1c5d3ba3ea268fd1bf5ac9759a24ed23

  • SHA256

    39176b24223d03d6c8701d6b52a895dd42842588af0b6e017e7c9c8cd08975b3

  • SHA512

    80ba790914500f6d327cac05c9e61214a2912424e136949947a7cd67797af94abe0a0ea2702d9f3561a93d15cd6bb16b3277a991551aa0a6ec336f39be1d4a6b

  • SSDEEP

    1536:o+lAvqY9shtgw+RDj0fnHkucCP8DB59ROSqZ+FH5LTMrZd7+SY6S46:NwqPgwoDj0ES0l5lW+FH5/M1d7+M1

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • 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 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39176b24223d03d6c8701d6b52a895dd42842588af0b6e017e7c9c8cd08975b3.exe
    "C:\Users\Admin\AppData\Local\Temp\39176b24223d03d6c8701d6b52a895dd42842588af0b6e017e7c9c8cd08975b3.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4560
    • C:\Users\Admin\AppData\Local\Temp\39176b24223d03d6c8701d6b52a895dd42842588af0b6e017e7c9c8cd08975b3Srv.exe
      C:\Users\Admin\AppData\Local\Temp\39176b24223d03d6c8701d6b52a895dd42842588af0b6e017e7c9c8cd08975b3Srv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3052
      • 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:3528
        • 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:1220
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1220 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4464

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

    d2c6a662e9bd0c89bf8cd03b201f89bd

    SHA1

    7c019c00c24825eedda6b9fd3e200a39aa47771e

    SHA256

    08fec4715e35e941a8bc409fdafb8fab8c4b97e8883325b9082562eecc1cdca2

    SHA512

    332b7cf422c2f656208ad9add4b15ee0c4ee7ee0074f67be9b7af32e9b4b59d487250bedeed06cf1763c13fe0da82cefccc4ada975dd148bf686f9cad08fbefb

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

    Filesize

    404B

    MD5

    2489713ba3b2f758ccf65976bafc7d29

    SHA1

    a330bb83d61136a46ba7359793582ea617a95c2f

    SHA256

    b3169661dfca9d45a775fc806d507c6a0912e07057bcf6f118d8eed09a3ba822

    SHA512

    e9317f5f49c204b559105e92109bc4423544f03f939c74473713f843cb7ad964715cb47758426c6ed0b35e2ad26cd3137b349f57ebbd356a1311649f375850b5

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Temp\39176b24223d03d6c8701d6b52a895dd42842588af0b6e017e7c9c8cd08975b3Srv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/3052-4-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3052-5-0x0000000000480000-0x000000000048F000-memory.dmp

    Filesize

    60KB

  • memory/3052-8-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3528-13-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3528-14-0x0000000000570000-0x0000000000571000-memory.dmp

    Filesize

    4KB

  • memory/3528-15-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4560-0-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/4560-17-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB