Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 05:42

General

  • Target

    99642ff020db9da528c234f62d753a67efe88241c34281bb7f903ced6dd13197N.exe

  • Size

    352KB

  • MD5

    cde3b466a43ee486ab4481bacaab4650

  • SHA1

    f1bcc3d351df7aa86966787a37c4cb5663652378

  • SHA256

    99642ff020db9da528c234f62d753a67efe88241c34281bb7f903ced6dd13197

  • SHA512

    eb1932d2cfc5bcd89813fe9e618ca40e23176e5b47e7675b9e106695655411c0baa16688a41a3057d5cd20e8955d1fe8e420b38e4319378f167ad3c48659475f

  • SSDEEP

    6144:mIs9OKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPFsEPAsKCe8i:bKofHfHTXQLzgvnzHPowYbvrjD/L7QPs

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 19 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\99642ff020db9da528c234f62d753a67efe88241c34281bb7f903ced6dd13197N.exe
    "C:\Users\Admin\AppData\Local\Temp\99642ff020db9da528c234f62d753a67efe88241c34281bb7f903ced6dd13197N.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2844
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2648
      • C:\Windows\SysWOW64\smnss.exe
        C:\Windows\system32\smnss.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Enumerates connected drives
        • Maps connected drives based on registry
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:2640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\ctfmen.exe

    Filesize

    4KB

    MD5

    a5e4118129590d354b4898e6f32c5a15

    SHA1

    86e2f75af189a296ccbef8a0cf0c677027587de4

    SHA256

    7567944850e7b73d6e0d5dceaa6b052f247f122e84a9989a6bbd3a404afa2206

    SHA512

    86967b0b6bed5c7cabe8e9360d035db1606606e4be3c25b7b0ca07cbcb857285c44e1006c249e64dff0a4e13e4480245cdda9280ade980d9547518aa39d71a0e

  • C:\Windows\SysWOW64\grcopy.dll

    Filesize

    352KB

    MD5

    58666c7836e64f21557e0ce0c5a1ca95

    SHA1

    bda479ed18e048bd5ebc79e33c142701c3ec31f2

    SHA256

    ee9198ac01d9eb4c345406cc0d791b5b0687880e82561d4eb0d86218a6d4f716

    SHA512

    cb24d59ac810caf6a840d22d4c379436e7b8dbeefd0927bfb07623e7902585c01546b7ce1e806adef98442f2a5c13ee18db288d6dca958ea1a6d2fae8f9ad867

  • C:\Windows\SysWOW64\satornas.dll

    Filesize

    183B

    MD5

    97d74b4608747573f28e62e347edd352

    SHA1

    97a2b9887bc392cb8e22bb3b3561567d9dda1f52

    SHA256

    4ffc7a0ba16ee0fed261afa047de99105f529e4a9de4c0737d8ce452c92c49c4

    SHA512

    453213ad330ded4421896db26bf79ef35ca4adfb5b3d3252767cd3b8840ac1e0bcd0b0e017fb765d35d51bf8dfdcd7544d29b64dde609f77064d52be2a38cc2b

  • C:\Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    31c1a2bd04f96b12643e4da863839e97

    SHA1

    fccbb61cca980629e21f5240d56a3deb093552cd

    SHA256

    2f288566515d26bfcb49e6dc5ef9c3840820e9aacef94e95ec52f68c77006ed7

    SHA512

    7ba93e20e9a461bb03794f19d1fe051908e6614127efec46ea54f2fff6065c234ba9a6c17854cc46bc0cbfb40489aa0939643703f5c3321529f4562e18af85f1

  • memory/2640-28-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/2640-39-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2640-38-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/2648-31-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2648-21-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2844-23-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/2844-0-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/2844-24-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2844-12-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB