Analysis

  • max time kernel
    154s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-10-2023 17:23

General

  • Target

    69bd0a71b2a3fcf609ecb92a11a1eb07d2e58f3eb46505309701c5b1655a4ba6.exe

  • Size

    5.6MB

  • MD5

    48b171f32947aa7fe8752fdbf134c667

  • SHA1

    a1ad1fa92b5828965021ad7d0d0a13bba0e51105

  • SHA256

    69bd0a71b2a3fcf609ecb92a11a1eb07d2e58f3eb46505309701c5b1655a4ba6

  • SHA512

    18d6a054953943ef96748ef6e473f77ac203f17cb81cb4456207f6baf65a5461c7c934eee3d47776b70f489dee6963ed5c1d0aeaec75a517ecbd3d7307abaee1

  • SSDEEP

    98304:AjB2VM//vC0Y04Enhst1blRPWcyDxlfnsZm31K3/Mh++FMWzNoNniDH/mviccF:AV2s/vC0AFrRRPWHxl/omlC/eEOoQDHJ

Malware Config

Signatures

  • FatalRat

    FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

  • Fatal Rat payload 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 7 IoCs
  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • VMProtect packed file 5 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69bd0a71b2a3fcf609ecb92a11a1eb07d2e58f3eb46505309701c5b1655a4ba6.exe
    "C:\Users\Admin\AppData\Local\Temp\69bd0a71b2a3fcf609ecb92a11a1eb07d2e58f3eb46505309701c5b1655a4ba6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4776
    • C:\Windows\DNomb\spolsvt.exe
      C:\Windows\DNomb\spolsvt.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2124
      • C:\Users\Public\Documents\t\spolsvt.exe
        C:\Users\Public\Documents\t\spolsvt.exe
        3⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:4556
    • C:\Windows\DNomb\spolsvt.exe
      C:\Windows\DNomb\spolsvt.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2316
      • C:\Users\Public\Documents\t\spolsvt.exe
        C:\Users\Public\Documents\t\spolsvt.exe
        3⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:4508
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3280
    • C:\Users\Public\Documents\123\PTvrst.exe
      "C:\Users\Public\Documents\123\PTvrst.exe"
      1⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4844
      • C:\WINDOWS\DNomb\spolsvt.exe
        C:\WINDOWS\DNomb\spolsvt.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4668
        • C:\Users\Public\Documents\t\spolsvt.exe
          C:\Users\Public\Documents\t\spolsvt.exe
          3⤵
          • Executes dropped EXE
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2172

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Public\Documents\123\PTvrst.exe

      Filesize

      1.2MB

      MD5

      d22cfb5bfaeb1503b12b07e53ef0a149

      SHA1

      8ea2c85e363f551a159fabd65377affed4e417a1

      SHA256

      260464fb05210cfb30ef7a12d568f75eb781634b251d958cae8911948f6ca360

      SHA512

      151024cb2960b1ee485ded7ccbb753fe368a93fda5699af72e568667fa54bfb0d1732444e7b60efaab6d372204157cdb6abbf8862d0e89d612dd963342215e45

    • C:\Users\Public\Documents\123\PTvrst.exe

      Filesize

      1.2MB

      MD5

      d22cfb5bfaeb1503b12b07e53ef0a149

      SHA1

      8ea2c85e363f551a159fabd65377affed4e417a1

      SHA256

      260464fb05210cfb30ef7a12d568f75eb781634b251d958cae8911948f6ca360

      SHA512

      151024cb2960b1ee485ded7ccbb753fe368a93fda5699af72e568667fa54bfb0d1732444e7b60efaab6d372204157cdb6abbf8862d0e89d612dd963342215e45

    • C:\Users\Public\Documents\t\spolsvt.exe

      Filesize

      16KB

      MD5

      cdce4713e784ae069d73723034a957ff

      SHA1

      9a393a6bab6568f1a774fb753353223f11367e09

      SHA256

      b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8

      SHA512

      0a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f

    • C:\Users\Public\Documents\t\spolsvt.exe

      Filesize

      16KB

      MD5

      cdce4713e784ae069d73723034a957ff

      SHA1

      9a393a6bab6568f1a774fb753353223f11367e09

      SHA256

      b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8

      SHA512

      0a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f

    • C:\Users\Public\Documents\t\spolsvt.exe

      Filesize

      16KB

      MD5

      cdce4713e784ae069d73723034a957ff

      SHA1

      9a393a6bab6568f1a774fb753353223f11367e09

      SHA256

      b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8

      SHA512

      0a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f

    • C:\Users\Public\Documents\t\spolsvt.exe

      Filesize

      16KB

      MD5

      cdce4713e784ae069d73723034a957ff

      SHA1

      9a393a6bab6568f1a774fb753353223f11367e09

      SHA256

      b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8

      SHA512

      0a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f

    • C:\Users\Public\Documents\t\yh.png

      Filesize

      93KB

      MD5

      3cfe46b9b3a6bfc2cb0dbbf9c1da5580

      SHA1

      7b68d339e57c2e21cc1b48e033d0d2d6e7af23d7

      SHA256

      f1293d796c4b90ff373838acc3fd76848a64dd994be97d8c80a3e22f2b6f7b6c

      SHA512

      6e11bc03b03aa31edcda10135ff0a219d980fb095be64ac3f130e0735173d837194eb194b8c8c5147453eb593ba9a319c6f541cc8da447dbcafa86fc723c64b9

    • C:\WINDOWS\DNomb\Mpec.mbt

      Filesize

      488KB

      MD5

      6a36cc4e5f26d916a7dee69e2a79641f

      SHA1

      bebb72c5d89136196433d40ad8ccae6ddc0623c5

      SHA256

      f1658a54a382dfb3a5284aeba7bfe564df9f899c8fe8b249c956208c859d45bc

      SHA512

      bfe426da4d8c2404fc698894ec9b010295baa98ce3763cc7f9d0091ec9b387b4724ad7e5f32c0cc6cd025458069167ebcbc3fca7bfc4525037aefc5327349dae

    • C:\WINDOWS\DNomb\spolsvt.exe

      Filesize

      9KB

      MD5

      523d5c39f9d8d2375c3df68251fa2249

      SHA1

      d4ed365c44bec9246fc1a65a32a7791792647a10

      SHA256

      20e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78

      SHA512

      526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4

    • C:\Windows\DNomb\spolsvt.exe

      Filesize

      9KB

      MD5

      523d5c39f9d8d2375c3df68251fa2249

      SHA1

      d4ed365c44bec9246fc1a65a32a7791792647a10

      SHA256

      20e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78

      SHA512

      526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4

    • C:\Windows\DNomb\spolsvt.exe

      Filesize

      9KB

      MD5

      523d5c39f9d8d2375c3df68251fa2249

      SHA1

      d4ed365c44bec9246fc1a65a32a7791792647a10

      SHA256

      20e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78

      SHA512

      526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4

    • C:\Windows\DNomb\spolsvt.exe

      Filesize

      9KB

      MD5

      523d5c39f9d8d2375c3df68251fa2249

      SHA1

      d4ed365c44bec9246fc1a65a32a7791792647a10

      SHA256

      20e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78

      SHA512

      526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4

    • memory/2172-66-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2172-71-0x0000000010000000-0x000000001002A000-memory.dmp

      Filesize

      168KB

    • memory/2172-64-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2172-65-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2172-70-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/4556-100-0x0000000010000000-0x000000001002A000-memory.dmp

      Filesize

      168KB

    • memory/4668-58-0x0000000000400000-0x0000000000516000-memory.dmp

      Filesize

      1.1MB

    • memory/4668-57-0x0000000000400000-0x0000000000516000-memory.dmp

      Filesize

      1.1MB

    • memory/4668-53-0x0000000000400000-0x0000000000516000-memory.dmp

      Filesize

      1.1MB

    • memory/4668-52-0x0000000000400000-0x0000000000516000-memory.dmp

      Filesize

      1.1MB

    • memory/4668-51-0x0000000000400000-0x0000000000516000-memory.dmp

      Filesize

      1.1MB

    • memory/4668-50-0x0000000000400000-0x0000000000516000-memory.dmp

      Filesize

      1.1MB

    • memory/4776-146-0x0000000000400000-0x0000000000DFB000-memory.dmp

      Filesize

      10.0MB

    • memory/4776-4-0x0000000000400000-0x0000000000DFB000-memory.dmp

      Filesize

      10.0MB

    • memory/4776-22-0x0000000000400000-0x0000000000DFB000-memory.dmp

      Filesize

      10.0MB

    • memory/4776-7-0x0000000001430000-0x0000000001431000-memory.dmp

      Filesize

      4KB

    • memory/4776-1-0x0000000000400000-0x0000000000DFB000-memory.dmp

      Filesize

      10.0MB

    • memory/4776-5-0x0000000001010000-0x0000000001011000-memory.dmp

      Filesize

      4KB

    • memory/4776-2-0x0000000000FD0000-0x0000000000FD1000-memory.dmp

      Filesize

      4KB

    • memory/4776-0-0x0000000000F60000-0x0000000000F61000-memory.dmp

      Filesize

      4KB

    • memory/4776-18-0x0000000000400000-0x0000000000DFB000-memory.dmp

      Filesize

      10.0MB

    • memory/4776-3-0x0000000001000000-0x0000000001001000-memory.dmp

      Filesize

      4KB

    • memory/4776-9-0x0000000001440000-0x0000000001441000-memory.dmp

      Filesize

      4KB

    • memory/4776-6-0x0000000001420000-0x0000000001421000-memory.dmp

      Filesize

      4KB

    • memory/4844-28-0x0000000076F04000-0x0000000076F06000-memory.dmp

      Filesize

      8KB

    • memory/4844-47-0x0000000004890000-0x0000000004891000-memory.dmp

      Filesize

      4KB

    • memory/4844-46-0x0000000004900000-0x0000000004901000-memory.dmp

      Filesize

      4KB

    • memory/4844-45-0x0000000000400000-0x00000000006A2000-memory.dmp

      Filesize

      2.6MB

    • memory/4844-42-0x0000000004740000-0x0000000004741000-memory.dmp

      Filesize

      4KB

    • memory/4844-43-0x0000000004790000-0x0000000004791000-memory.dmp

      Filesize

      4KB

    • memory/4844-44-0x0000000004860000-0x0000000004861000-memory.dmp

      Filesize

      4KB

    • memory/4844-41-0x0000000004880000-0x0000000004881000-memory.dmp

      Filesize

      4KB

    • memory/4844-40-0x0000000004820000-0x0000000004821000-memory.dmp

      Filesize

      4KB

    • memory/4844-39-0x00000000047C0000-0x00000000047C1000-memory.dmp

      Filesize

      4KB

    • memory/4844-38-0x00000000047D0000-0x00000000047D1000-memory.dmp

      Filesize

      4KB

    • memory/4844-76-0x0000000000400000-0x00000000006A2000-memory.dmp

      Filesize

      2.6MB

    • memory/4844-37-0x00000000047A0000-0x00000000047A1000-memory.dmp

      Filesize

      4KB

    • memory/4844-36-0x0000000004800000-0x0000000004801000-memory.dmp

      Filesize

      4KB

    • memory/4844-35-0x0000000004760000-0x0000000004761000-memory.dmp

      Filesize

      4KB

    • memory/4844-34-0x00000000047E0000-0x00000000047E2000-memory.dmp

      Filesize

      8KB

    • memory/4844-33-0x0000000004780000-0x0000000004781000-memory.dmp

      Filesize

      4KB

    • memory/4844-31-0x0000000004750000-0x0000000004751000-memory.dmp

      Filesize

      4KB

    • memory/4844-32-0x00000000047B0000-0x00000000047B1000-memory.dmp

      Filesize

      4KB

    • memory/4844-30-0x00000000047F0000-0x00000000047F1000-memory.dmp

      Filesize

      4KB

    • memory/4844-27-0x0000000000400000-0x00000000006A2000-memory.dmp

      Filesize

      2.6MB