Overview

overview

10

Static

static

7

a58b7bd138...94.exe

windows7-x64

10

a58b7bd138...94.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-07-2024 09:45

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General

  • Target

    a58b7bd1380f220770408e33f43bdac4ab0bfe336e101484100915bf0518e794.exe

  • Size

    4.6MB

  • MD5

    d64c8e67eaa9bb5b648f7aa4731c2924

  • SHA1

    81d7eec4135a2cde0d29bf651eb3b8e1f4093a93

  • SHA256

    a58b7bd1380f220770408e33f43bdac4ab0bfe336e101484100915bf0518e794

  • SHA512

    1df2e7066fa804f992edb9f7e15256ab2348a0eb42068de9b987806b220e2ffc6736762fc9b4c37c6277738ca6983e8357d9b8aa6a63317d09a8fac6f54427d4

  • SSDEEP

    98304:jDN3JGPpKZ9AaI7S2DLpKNbEoH6ErTQyQzPm1XUxIyiVni:jJ34UwF7S2DLpKNEoHj58PDxdii

Score
10/10
fatalrataspackv2discoveryevasioninfostealerpersistencerattrojanupx

Malware Config

Signatures

  • FatalRat

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

    infostealerratfatalrat
  • Fatal Rat payload 1 IoCs
    ratinfostealer
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

    aspackv2
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a58b7bd1380f220770408e33f43bdac4ab0bfe336e101484100915bf0518e794.exe
    "C:\Users\Admin\AppData\Local\Temp\a58b7bd1380f220770408e33f43bdac4ab0bfe336e101484100915bf0518e794.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:752
    • C:\Program Files (x86)\uzj.exe
      "C:\Program Files (x86)\uzj.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1308
      • C:\Users\Public\Documents\sougou\PTvrst.exe
        C:\Users\Public\Documents\sougou\PTvrst.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4744
        • C:\Users\Public\Documents\sougou\spolsvt.exe
          C:\Users\Public\Documents\sougou\spolsvt.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2788
          • C:\Users\Public\Documents\dd\spolsvt.exe
            C:\Users\Public\Documents\dd\spolsvt.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of AdjustPrivilegeToken
            PID:184
          • C:\Users\Public\Documents\uu\svcoth.exe
            C:\Users\Public\Documents\uu\svcoth.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:2552
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7ZSfx000.cmd" "
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\uzj.exe
    Filesize

    3.4MB

    MD5

    175d6f3e75b3cecdc5633ae0524ef496

    SHA1

    745459089543ef9e523af038064085b2e4af0fee

    SHA256

    033f23eac17d2a06675459abe2ded52b42f29cfa720c2ccfb507bac2d38988f0

    SHA512

    5f32dba9ad45cbc6845bfe4f25102947c103072a4258e7e10dd94c888c180fa5d23e80091a5e6b43c7aaa5976133ac83ea17656e4b9c0d2ee1eca8ef5dcdc79f

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\7ZSfx000.cmd
    Filesize

    300B

    MD5

    f3a3f1f1a431db43c46bda6c56963c15

    SHA1

    2459acd51270a6181bee5327b8cf87e6ca8ed2f0

    SHA256

    cc92adf4183bea061661ef9d12057693ba70b817e711e25bd9827d77bd2caade

    SHA512

    36e4903ab9cc5244928e4b37cfccc45a55707b757735ecb1b9ec35909c3f61c764c362bee170a19af652f844ab597491f23364bb2363c3fc1f62df4095e949bf

    Download Submit

  • C:\Users\Public\Documents\dd\spolsvt.exe
    Filesize

    16KB

    MD5

    cdce4713e784ae069d73723034a957ff

    SHA1

    9a393a6bab6568f1a774fb753353223f11367e09

    SHA256

    b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8

    SHA512

    0a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f

    Download Submit

  • C:\Users\Public\Documents\sougou\Mpec.mbt
    Filesize

    196KB

    MD5

    e3ed6c93f7296d2716191dc34e4c62b1

    SHA1

    3921c051dc50365d018f5b9cd7cfdc585bfda2f3

    SHA256

    48b700a1c7f950271a2c7a0ef9a3503c50221d7703f7e07b6d2997ae2f67c81c

    SHA512

    dccdd41657f53d0d4746c84271175d4c92b29fc5b86d3a384523dd61645a9239f2666d62568c89aabc77b78dead6c9c9d027a780b90fc9b497ad88580dc90ac1

    Download Submit

  • C:\Users\Public\Documents\sougou\spolsvt.exe
    Filesize

    9KB

    MD5

    523d5c39f9d8d2375c3df68251fa2249

    SHA1

    d4ed365c44bec9246fc1a65a32a7791792647a10

    SHA256

    20e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78

    SHA512

    526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4

    Download Submit

  • memory/184-56-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

    Download

  • memory/184-54-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

    Download

  • memory/184-55-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

    Download

  • memory/184-61-0x0000000010000000-0x000000001002A000-memory.dmp

    Filesize

    168KB

    Download

  • memory/184-60-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

    Download

  • memory/752-0-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

    Download

  • memory/752-87-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

    Download

  • memory/1308-18-0x0000000000400000-0x0000000000A13000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/1308-66-0x0000000000400000-0x0000000000A13000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/1308-19-0x0000000000401000-0x00000000004C4000-memory.dmp

    Filesize

    780KB

    Download

  • memory/1308-17-0x0000000000400000-0x0000000000A13000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/1308-16-0x0000000000400000-0x0000000000A13000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/1308-15-0x0000000000400000-0x0000000000A13000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/2552-77-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

    Download

  • memory/2552-76-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

    Download

  • memory/2552-75-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

    Download

  • memory/2552-74-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

    Download

  • memory/2552-78-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

    Download

  • memory/2552-82-0x0000000000400000-0x000000000041C000-memory.dmp

    Filesize

    112KB

    Download

  • memory/2788-40-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

    Download

  • memory/2788-41-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

    Download

  • memory/2788-42-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

    Download

  • memory/2788-46-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

    Download

  • memory/4744-49-0x0000000000400000-0x0000000000A13000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/4744-37-0x0000000000400000-0x0000000000A13000-memory.dmp

    Filesize

    6.1MB

    Download

  • memory/4744-33-0x0000000000400000-0x0000000000A13000-memory.dmp

    Filesize

    6.1MB

    Download