Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/04/2024, 00:09

General

  • Target
    a629e956d051919bb37d4de30f8a3f64544d54b4e1089e8eef777dd728325b9c.exe
  • Size 120KB
  • Sample240408-affdgsah27
  • SHA256 a629e956d051919bb37d4de30f8a3f64544d54b4e1089e8eef777dd728325b9c
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 12 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\a629e956d051919bb37d4de30f8a3f64544d54b4e1089e8eef777dd728325b9c.exe
    "C:\Users\Admin\AppData\Local\Temp\a629e956d051919bb37d4de30f8a3f64544d54b4e1089e8eef777dd728325b9c.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:3972
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2880
      • 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:1828

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ctfmen.exe

        • Path C:\Windows\SysWOW64\ctfmen.exe
        • Size 4KB
        • SHA256 bbd3b23f6fa75a49d1f4879c7b06d25353485ebcf9a7bb5ed98e38a72378bba5
        • MD5 SHA1 SHA512 SSDEEP

        grcopy.dll

        • Path C:\Windows\SysWOW64\grcopy.dll
        • Size 120KB
        • SHA256 a707f046789d28831ea3fa1a83f47df11ca71a786a5ed4bd3bb5c33a89429358
        • MD5 SHA1 SHA512 SSDEEP

        satornas.dll

        • Path C:\Windows\SysWOW64\satornas.dll
        • Size 183B
        • SHA256 eaa0375586ad583533a4f759db726a3fd2c61522ea2e041bd6237306a9052717
        • MD5 SHA1 SHA512

        shervans.dll

        • Path C:\Windows\SysWOW64\shervans.dll
        • Size 8KB
        • SHA256 5050b5be5f1b04d592a5f92a8fbfae7bada8f2f3c61c80e0e2c56d3fb86e26cd
        • MD5 SHA1 SHA512 SSDEEP

        memory/1828-30-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1828-36-0x0000000010000000-0x000000001000D000-memory.dmp

        memory/1828-39-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/2880-25-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/2880-21-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/3972-23-0x0000000010000000-0x000000001000D000-memory.dmp

        memory/3972-0-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/3972-28-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/3972-12-0x0000000010000000-0x000000001000D000-memory.dmp