Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-06-2024 05:43

General

  • Target

    f95f323f382c6671416f77104361c6c8be822a6012ceeea90f77b518d7965044.exe

  • Size

    75KB

  • MD5

    3e26376479d7d154bcaa2d45b919a6c2

  • SHA1

    75e4251d8d637ba3cf1d28e18df7ea93fa853e9d

  • SHA256

    f95f323f382c6671416f77104361c6c8be822a6012ceeea90f77b518d7965044

  • SHA512

    3b5c58b7902c6ccbe6258cefa72612e3f25c93d646b5593e22e89fcd5d094aac77b2ec04052b06f2dc052eefd967b438f5b1979c1a4fc84ba29daafe6940def2

  • SSDEEP

    1536:6x1Qja7luy6y0s4sqfkbnAKBOKofHfHTXQLzgvnzHPowYbvrjD/L7QPbg/Dr0T3s:qOjWuyt0ZsqsXOKofHfHTXQLzgvnzHPE

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 6 IoCs
  • 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 2 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
  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f95f323f382c6671416f77104361c6c8be822a6012ceeea90f77b518d7965044.exe
    "C:\Users\Admin\AppData\Local\Temp\f95f323f382c6671416f77104361c6c8be822a6012ceeea90f77b518d7965044.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2052
      • 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
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\ctfmen.exe

    Filesize

    4KB

    MD5

    9071491ac39060bae5e35c12ac3288c0

    SHA1

    456a206895fbb1952d23587e61e774881d96659f

    SHA256

    135c6271317d9465fde4c718da78309d7303711ed02338cacf66999acb06637a

    SHA512

    2d14f8b160357dc1ddf0ce5f5c5d6ad806ccd021c68fc22cae07a543ae5ecd347f5295e6118015dd69b4ab485fa4a56a3627b697587e649471257ec4181cc67a

  • C:\Windows\SysWOW64\grcopy.dll

    Filesize

    75KB

    MD5

    abf6c7085bf83b0b106b1039e58ab4cb

    SHA1

    dfb5c5cb0953cc0a96293f4b218ebd3648dc019e

    SHA256

    d88e0e49fea301d806932a3cabb086c3cc148450ae17823d23ca5c082072a2c0

    SHA512

    06ba7dd6065b2b228ebe703e5fd65e23bbba5ace761a69f46ca0d735ac8655204d89493373205727fd81e9a6dab6975f452e4fd0571a354cb8bb4fe79ac6a084

  • C:\Windows\SysWOW64\satornas.dll

    Filesize

    183B

    MD5

    15da9b9cdbbae0cea42a1e1eea88f13b

    SHA1

    fa32ea4f337df22e67b73ddb21814af767829ee1

    SHA256

    f5f9a2174ac9db2135c9792dc13810c3f0ac81d284430842da1846b7e9decd73

    SHA512

    d034d201a99d011d011818355b75c1eaa9b13865ec4e6d497d6eb52c373f5c0c3b5ff845f2230d63a39be92944a66b06f1733cff9cb109aa4f163184c8b8b864

  • C:\Windows\SysWOW64\shervans.dll

    Filesize

    8KB

    MD5

    c85aca62a67a7b8b5d60738c68005f3f

    SHA1

    19cf9ece4e2f3e96823c6dc7db9f768aba34c35e

    SHA256

    20d3efc81d8c0ef85f00a431a627e25cf72fb4fd632da75bd9e4ab34e49d085e

    SHA512

    db96a34b3985c4d1bfd1049f55dc184d4c5960567d2c2520a0fca9ccbaa912118e373551b0ae16c6e6a15598a3c0a714597cf957a48fee0a6b482baa504cae8c

  • memory/2052-24-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2708-48-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-46-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-62-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-35-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/2708-36-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-38-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-40-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-42-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-44-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-60-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-58-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-50-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-52-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-54-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/2708-56-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/4768-17-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB

  • memory/4768-20-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

  • memory/4768-23-0x0000000010000000-0x000000001000D000-memory.dmp

    Filesize

    52KB