Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2024, 21:44

General

  • Target
    64decdb7a0a607190ca9decc0364cf4606ccfccb6a16589be41b5b4b34bdf662.exe
  • Size 239KB
  • Sample240407-1lt2yafc81
  • SHA256 64decdb7a0a607190ca9decc0364cf4606ccfccb6a16589be41b5b4b34bdf662
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 24 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\64decdb7a0a607190ca9decc0364cf4606ccfccb6a16589be41b5b4b34bdf662.exe
    "C:\Users\Admin\AppData\Local\Temp\64decdb7a0a607190ca9decc0364cf4606ccfccb6a16589be41b5b4b34bdf662.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:4100
    • C:\Windows\SysWOW64\ctfmen.exe
      ctfmen.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2472
      • 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:1456

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ctfmen.exe

        • Path C:\Windows\SysWOW64\ctfmen.exe
        • Size 4KB
        • SHA256 5c5261be5869816cb34894821bc2d9ad64f6b463d39c521373dba7facded68ed
        • MD5 SHA1 SHA512 SSDEEP

        grcopy.dll

        • Path C:\Windows\SysWOW64\grcopy.dll
        • Size 239KB
        • SHA256 6089ca053f7f34bf1170ee4c8bd253b46833d0a0d18b57bc73b504acdcafe887
        • MD5 SHA1 SHA512 SSDEEP

        satornas.dll

        • Path C:\Windows\SysWOW64\satornas.dll
        • Size 183B
        • SHA256 f5e6ec17555500242a4a985132d3b0e5cc056de4990e7cade87838616656f16c
        • MD5 SHA1 SHA512

        shervans.dll

        • Path C:\Windows\SysWOW64\shervans.dll
        • Size 8KB
        • SHA256 b48911a99c7e057fe85e6d66011a244fd017a1ceb2b422b164fc4ed35fd35f81
        • MD5 SHA1 SHA512 SSDEEP

        memory/1456-51-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-45-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-63-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-61-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-28-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-59-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-36-0x0000000010000000-0x000000001000D000-memory.dmp

        memory/1456-37-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-39-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-41-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-43-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-57-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-47-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-49-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-55-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/1456-53-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/2472-27-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/4100-0-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/4100-21-0x0000000000400000-0x0000000000420000-memory.dmp

        memory/4100-18-0x0000000010000000-0x000000001000D000-memory.dmp

        memory/4100-24-0x0000000010000000-0x000000001000D000-memory.dmp