Analysis

  • max time kernel
    140s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-08-2024 22:01

General

  • Target

    261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe

  • Size

    2.9MB

  • MD5

    9db52b386b9f24c7568b215b9b55c71e

  • SHA1

    bf9f202831a0a6feb10f03c69ae5f9aee8d4f4fc

  • SHA256

    261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f

  • SHA512

    1c48a414bccbe6d101d61e5ffec30740d35737981e171ba313e8b2e0b145a20e7fafe4b3db07f35e5bcc75a975b49cb32822219bfc6586a62e0d9b6b80225292

  • SSDEEP

    49152:RTznnirmSfkIopz4aJanP0xIKYE00AaISNn1+/JT5xk+xFwUa8Fn6q1lCr1:RnnirHspz4aJGPpKZ9AaI7vFwZBq1w1

Malware Config

Signatures

  • FatalRat

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

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

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 6 IoCs
  • UPX packed file 5 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe
    "C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3988
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c set
      2⤵
        PID:4628
      • C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe
        PECMD**pecmd-cmd* PUTF -dd -skipb=946176 -len=2045509 "C:\Users\Admin\AppData\Local\Temp\~8246620215399789603.tmp",,C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4912
      • C:\Users\Admin\AppData\Local\Temp\~6062864005961370616~\sg.tmp
        7zG_exe x "C:\Users\Admin\AppData\Local\Temp\~8246620215399789603.tmp" -y -aoa -o"C:\Program Files (x86)\"
        2⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of AdjustPrivilegeToken
        PID:3080
      • C:\Program Files (x86)\ugg.exe
        "C:\Program Files (x86)\\ugg.exe"
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4732
        • C:\Users\Public\Documents\sougou\V4.6.80\Bin\QTalk.exe
          C:\Users\Public\Documents\sougou\V4.6.80\Bin\QTalk.exe
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1692
          • 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:556
            • 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:2436
            • 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:2564
      • C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe
        PECMD**pecmd-cmd* EXEC -wd:C: -hide cmd /c "C:\Users\Admin\AppData\Local\Temp\~6595989261622112137.cmd"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3348
        • C:\Windows\SYSTEM32\cmd.exe
          cmd /c "C:\Users\Admin\AppData\Local\Temp\~6595989261622112137.cmd"
          3⤵
            PID:1912

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\ChromeSetup.exe

        Filesize

        1.3MB

        MD5

        2b4fb46f2c28ed16e6ef82101780491c

        SHA1

        46d8191ab7c89cbebe36b3bf8f9d457fa0751716

        SHA256

        41d006fbc03a5fb95bfc2d2a87459902890b469c1bd85d9ff4e8a4d1bf3b99dd

        SHA512

        9c6412f6edbf98b8f7b52366463e01c28149ac19f94c297892f9fb7aafef41ab16f5e6ea036f5056dd422e402b15e283955b165c284d38264dc662c1a9a968d5

      • C:\Program Files (x86)\ugg.exe

        Filesize

        761KB

        MD5

        80c469aef3c93b7062ee21d4dbd1f43f

        SHA1

        df5ddf2d4257e89941c57e4d935da424dfd839a7

        SHA256

        2ca06c6d19785bd5b9e8f05da99311fcaafd64384df164c1f06a33622aaa397b

        SHA512

        e868d2a4d54ee4e16e8fce35447029eb0317dd8da961cf6b44ac13504b1b9fa8046faaaca9d432cd132ef928c247de7a588d9f30fabb3fd8a61a2ee5475006d4

      • C:\Users\Admin\AppData\Local\Temp\~6062864005961370616~\sg.tmp

        Filesize

        715KB

        MD5

        7c4718943bd3f66ebdb47ccca72c7b1e

        SHA1

        f9edfaa7adb8fa528b2e61b2b251f18da10a6969

        SHA256

        4cc32d00338fc7b206a7c052297acf9ac304ae7de9d61a2475a116959c1524fc

        SHA512

        e18c40d646fa4948f90f7471da55489df431f255041ebb6dcef86346f91078c9b27894e27216a4b2fe2a1c5e501c7953c77893cf696930123d28a322d49e1516

      • C:\Users\Admin\AppData\Local\Temp\~6595989261622112137.cmd

        Filesize

        521B

        MD5

        093f15de9bfbb1af4763993effd21571

        SHA1

        20ada276f16c00b4eca5ac8b008e9428dbb2980d

        SHA256

        2d19df8b2f86592bcc86fcdb4d1483803f3afb2ae1e6080510f1dd59176780e7

        SHA512

        2115f185d438b5403712d70c00a9f7b2e88204e630dcabec5bb0a4f16fedd7e1d5c9c60974dcaba4d4e158a376cfede39465557cdcfce7277995a79d0a912089

      • C:\Users\Admin\AppData\Local\Temp\~8246620215399789603.tmp

        Filesize

        2.0MB

        MD5

        d248eb4f4ab9e5515aa6a0a9df65c1dc

        SHA1

        74a026cf8877fa20d9f80bef37ff4101b5f2d345

        SHA256

        9d5901dcb20509c8e097c626b7da78203a881d96e05d6170002739d67aa280ab

        SHA512

        954f5e6f442287d9a5e763a32546c374bda9fddf8192130a5a9b6589395acd9a471117ad8c5d9f945a00007b3eaa8bcd526e8467f2b179ba8e384bfbb2837e18

      • C:\Users\Admin\AppData\Local\Temp\~~7516211974288305516.tmp

        Filesize

        122B

        MD5

        8075786c45e14f52b6c46a473026d219

        SHA1

        ae832016827ee429dfa97289cdf0bb8a863ff601

        SHA256

        11d3f5c1c003d7de82270f51994e5b0912ee32491bba1d077c44f0da41269262

        SHA512

        7c9fb0a2802c303a42670a0c61e535afa280619e7629fee336897d60f6d8a196e662eaea4e03f04ca1f81be97a8295ff246b87751acfe3794b2cd7af6e7c68ea

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

        Filesize

        16KB

        MD5

        cdce4713e784ae069d73723034a957ff

        SHA1

        9a393a6bab6568f1a774fb753353223f11367e09

        SHA256

        b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8

        SHA512

        0a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f

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

        Filesize

        196KB

        MD5

        1785c2aeecf8e19603872c8b73681cba

        SHA1

        efad939c6eeb68858ba4105b82d33ac65deaef01

        SHA256

        a60033b945c83d22846c9c2be31f8561b14c4ffceddd41be62014e03d4632eef

        SHA512

        8937de98663dea4862a574238786783c203d61927d031c811973bcf56014364ef84bff7bb17dc90dc840f5055dddd593eee69e597673de58a5325c5af4ff32b3

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

        Filesize

        9KB

        MD5

        523d5c39f9d8d2375c3df68251fa2249

        SHA1

        d4ed365c44bec9246fc1a65a32a7791792647a10

        SHA256

        20e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78

        SHA512

        526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4

      • memory/556-53-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/556-59-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/556-54-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/556-55-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/1692-62-0x0000000000400000-0x00000000005FA000-memory.dmp

        Filesize

        2.0MB

      • memory/1692-50-0x0000000000400000-0x00000000005FA000-memory.dmp

        Filesize

        2.0MB

      • memory/2436-74-0x0000000010000000-0x000000001002A000-memory.dmp

        Filesize

        168KB

      • memory/2436-73-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2436-67-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2436-68-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2436-69-0x0000000000400000-0x0000000000430000-memory.dmp

        Filesize

        192KB

      • memory/2564-102-0x0000000000400000-0x000000000041C000-memory.dmp

        Filesize

        112KB

      • memory/2564-104-0x0000000000400000-0x000000000041C000-memory.dmp

        Filesize

        112KB

      • memory/2564-108-0x0000000000400000-0x000000000041C000-memory.dmp

        Filesize

        112KB

      • memory/2564-100-0x0000000000400000-0x000000000041C000-memory.dmp

        Filesize

        112KB

      • memory/2564-101-0x0000000000400000-0x000000000041C000-memory.dmp

        Filesize

        112KB

      • memory/2564-103-0x0000000000400000-0x000000000041C000-memory.dmp

        Filesize

        112KB

      • memory/3348-94-0x0000000000400000-0x000000000055C000-memory.dmp

        Filesize

        1.4MB

      • memory/3988-0-0x0000000000400000-0x000000000055C000-memory.dmp

        Filesize

        1.4MB

      • memory/3988-92-0x0000000000400000-0x000000000055C000-memory.dmp

        Filesize

        1.4MB

      • memory/4732-65-0x0000000000400000-0x00000000005FA000-memory.dmp

        Filesize

        2.0MB

      • memory/4732-31-0x0000000000400000-0x00000000005FA000-memory.dmp

        Filesize

        2.0MB

      • memory/4732-33-0x0000000000401000-0x00000000004C1000-memory.dmp

        Filesize

        768KB

      • memory/4732-32-0x0000000000400000-0x00000000005FA000-memory.dmp

        Filesize

        2.0MB

      • memory/4732-30-0x0000000000400000-0x00000000005FA000-memory.dmp

        Filesize

        2.0MB

      • memory/4732-29-0x0000000000400000-0x00000000005FA000-memory.dmp

        Filesize

        2.0MB

      • memory/4912-7-0x0000000000400000-0x000000000055C000-memory.dmp

        Filesize

        1.4MB

      • memory/4912-9-0x0000000000400000-0x000000000055C000-memory.dmp

        Filesize

        1.4MB