Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/11/2024, 13:25

General

  • Target

    f799f0e3e91fcacf2227083e2611601956f171328a3e51a21c2e5f21e4671cc8N.exe

  • Size

    118KB

  • MD5

    68b5b0585cb65eed81b44d2b6c22ffa0

  • SHA1

    919000a0178b8324bd365434ec3a4fece9a039a7

  • SHA256

    f799f0e3e91fcacf2227083e2611601956f171328a3e51a21c2e5f21e4671cc8

  • SHA512

    e95a959ec962cdfb83651a46d45f724fce3264e0c9c06bc67c50237a42d11bf97dd2b0ac813b978ab8300abf7898ce0c370550b14d7c663c707428c763643c10

  • SSDEEP

    3072:WOjWuyt0ZsqsXOKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3rnXLHf7zjPPb:WIs9OKofHfHTXQLzgvnzHPowYbvrjD/m

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\f799f0e3e91fcacf2227083e2611601956f171328a3e51a21c2e5f21e4671cc8N.exe
    "C:\Users\Admin\AppData\Local\Temp\f799f0e3e91fcacf2227083e2611601956f171328a3e51a21c2e5f21e4671cc8N.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:852
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2288
      • 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:3936

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\ctfmen.exe

          Filesize

          4KB

          MD5

          a187653d0386e4b7486de4b940d5df60

          SHA1

          98da51a6000a7dc46ed79be515c9af7585c071a6

          SHA256

          804176d7caf938bedcf147d8776bc670a3aa32c7faddd4279b9a92fbc6b9fe81

          SHA512

          14ef90e18c00ed5b36729b1b150ec7a295ffd2bcd2dea715bcc9d9febf6d9e46e0db51d8cd11bdd0a9472f0084499d7fa16038e9a1fe7724b0cf583bd1a1886e

        • C:\Windows\SysWOW64\grcopy.dll

          Filesize

          118KB

          MD5

          4f92b2dba0d3b910c2f9495b6f93c4bb

          SHA1

          33ffd1b0fda257abdda41ffdcac698c3d604b374

          SHA256

          70aebc441cf4522ebb37412bef7d9340ea9c86d4946dbc9b9e6e2614b52636e1

          SHA512

          662626f742bbcb90fd1ed67904adf04b722182d40be464d06ea24d320fce4dea975266bf9a8ecda736297b8ba4551b4c7e4a664049e3eea05d93b591b8682dea

        • C:\Windows\SysWOW64\satornas.dll

          Filesize

          183B

          MD5

          e9a699ce016a2d6710fd8e98ef33a859

          SHA1

          cbcbdf6c657a114b90e8321496a4a676cf32c909

          SHA256

          57352f6a6d7c5cc7b467c6705d495cfc024b584eece24c1c8c04b75c188a4359

          SHA512

          c7b539e8a754c549ee9f13ed74d2ca38c4afb887a40265e5f4eaee1bc98ca8eb6f1fc030d8268c295af63dfed901d3371d5c70b33087e6c44e6939dec24c9b56

        • C:\Windows\SysWOW64\shervans.dll

          Filesize

          8KB

          MD5

          78a0d3858d84bb3cceb562a604bfbd64

          SHA1

          50344041ea1a7c6d5e40dfd3b8c351f3d8bc1634

          SHA256

          9fcca37cefc39a5214fae5ea40704355bf9e598d0667991eb8b4096e0ff41692

          SHA512

          2f71b07d45432bd58342a6a8aae883c6f41851c64674b890559eeb908d5f6a6dc4795fea575bf693302bac0093b2f7664e75f2691431cb532f2f6431244c9aff

        • memory/852-24-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/852-25-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/852-0-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/852-12-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/2288-21-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2288-28-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3936-30-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/3936-37-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB

        • memory/3936-39-0x0000000000400000-0x000000000041F000-memory.dmp

          Filesize

          124KB

        • memory/3936-40-0x0000000010000000-0x000000001000D000-memory.dmp

          Filesize

          52KB