Resubmissions

14-08-2024 04:58

240814-flw63sxbmd 10

14-08-2024 04:49

240814-ffrdms1hmm 10

Analysis

  • max time kernel
    123s
  • 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
    14-08-2024 04:49

General

  • Target

    win32-quickq.exe

  • Size

    98.7MB

  • MD5

    da1424edd82d74762bfb206d2a9663a2

  • SHA1

    2c8758ca47f9b8611fea1099ccf1615aaf3c14cc

  • SHA256

    e5e14f1568e45c2e09efeef9ba196fc6f4f3c808982419aae3f9016c773b0a20

  • SHA512

    bed7762790cc3b9987456cf252fc4f22d2fcf2f24b14e52e4c45bfe926ed79d429651c00df2fe965ff32546a69e64d0bf15dc3d0d987396d4011e9cead348333

  • SSDEEP

    3145728:0HhTREt4XXxyq62uo9rKFgl9VyIi094Bog:iHYb2b+FUlt4Bf

Malware Config

Signatures

  • FatalRat

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

  • Fatal Rat payload 1 IoCs
  • Executes dropped EXE 6 IoCs
  • UPX packed file 7 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 5 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\win32-quickq.exe
    "C:\Users\Admin\AppData\Local\Temp\win32-quickq.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2568
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c set
      2⤵
        PID:8
      • C:\Users\Admin\AppData\Local\Temp\win32-quickq.exe
        PECMD**pecmd-cmd* PUTF -dd -skipb=1205760 -len=102259860 "C:\Users\Admin\AppData\Local\Temp\~8023754827074496123.tmp",,C:\Users\Admin\AppData\Local\Temp\win32-quickq.exe
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2616
      • C:\Users\Admin\AppData\Local\Temp\~8883962774150513558~\sg.tmp
        7zG_exe x "C:\Users\Admin\AppData\Local\Temp\~8023754827074496123.tmp" -y -aoa -o"C:\Program Files (x86)\"
        2⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of AdjustPrivilegeToken
        PID:1632
      • C:\Program Files (x86)\u1.exe
        "C:\Program Files (x86)\\u1.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:2872
        • 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:1768
          • 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:4412
            • C:\Users\Public\Documents\dd\spolsvt.exe
              C:\Users\Public\Documents\dd\spolsvt.exe
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1300
            • 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:3920
      • C:\Users\Admin\AppData\Local\Temp\win32-quickq.exe
        PECMD**pecmd-cmd* EXEC -wd:C: -hide cmd /c "C:\Users\Admin\AppData\Local\Temp\~4030101642029293410.cmd"
        2⤵
          PID:1428
          • C:\Windows\SYSTEM32\cmd.exe
            cmd /c "C:\Users\Admin\AppData\Local\Temp\~4030101642029293410.cmd"
            3⤵
              PID:3624
          • C:\Users\Admin\AppData\Local\Temp\win32-quickq.exe
            PECMD**pecmd-cmd* EXEC -wd:C: -hide cmd /c "C:\Users\Admin\AppData\Local\Temp\~8070229517745643017.cmd"
            2⤵
              PID:3840
              • C:\Windows\SYSTEM32\cmd.exe
                cmd /c "C:\Users\Admin\AppData\Local\Temp\~8070229517745643017.cmd"
                3⤵
                  PID:4296

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Program Files (x86)\u1.exe

              Filesize

              6.1MB

              MD5

              0d808b4aa4329dd4091c0414333aca75

              SHA1

              50f045202090292f00a82b1efb3cde09f848a9dd

              SHA256

              9392da86d8c1d1fa48dab2d0c5a53c05de74eccdb302a043f7829f09911f8c5d

              SHA512

              427552d251d65289c97b9593efa87092ec2bdace1d5e39448e98439fff7469414aff0755f915edccae780ef9cf0433993f083deee44be2d41587a14c959daa7b

            • C:\Users\Admin\AppData\Local\Temp\~4030101642029293410.cmd

              Filesize

              280B

              MD5

              42ff656bd4ee3e19a5828940041fdfdb

              SHA1

              2e3c7f0fd42dd48b014e82e9e5edf50664ae5698

              SHA256

              b326705c28abc9947182f84830e0e680d35551157b408a0f9cfd137279a02838

              SHA512

              4ba36b5e44c94df09b91b3557237dae6b74a9fe04da686f157938446cf635c464f616126e937400ee4d577708b3bdcb7f88cec8df23d344bfd7105b75f9ec7b0

            • C:\Users\Admin\AppData\Local\Temp\~8070229517745643017.cmd

              Filesize

              365B

              MD5

              6108321ae8ebdf91ffa59bc72b4652b7

              SHA1

              c678d1a33139f8016c014dea6f5763671539ee59

              SHA256

              bd559493a4648bc69da3165aafc195ab519af9d10bf8454bf10d7bb5913bf0f5

              SHA512

              1d74b13759270b8f131f076ccf37b972c9d070e9bfe3ebab91b603d2227e873b96b580ea1901e88060eb8432757277c42de7f97886e5d8b7b00674de1d011710

            • C:\Users\Admin\AppData\Local\Temp\~8883962774150513558~\sg.tmp

              Filesize

              715KB

              MD5

              7c4718943bd3f66ebdb47ccca72c7b1e

              SHA1

              f9edfaa7adb8fa528b2e61b2b251f18da10a6969

              SHA256

              4cc32d00338fc7b206a7c052297acf9ac304ae7de9d61a2475a116959c1524fc

              SHA512

              e18c40d646fa4948f90f7471da55489df431f255041ebb6dcef86346f91078c9b27894e27216a4b2fe2a1c5e501c7953c77893cf696930123d28a322d49e1516

            • C:\Users\Admin\AppData\Local\Temp\~~8835365010709796986.tmp

              Filesize

              125B

              MD5

              d90f9e1a757b7ce048c8f0b24bb05f02

              SHA1

              0e767d49b9a49a5ebded50374f7808681554a24f

              SHA256

              8e8955cd55a3a12a3fbee47c4104ad66c1ae940cb71be78f29c8a1f7e1aa3fcb

              SHA512

              d7e7b23ee1c816305d2c8e26de13aef263d32db4ca7ac364cc80936311a0acbe6c96b96169a829bac5876b17950fe8e2b7b9189856f57b5376d49a37d8945ead

            • 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

              f1776f8a75946d171ad83bbd93f94d96

              SHA1

              c6b2d9ab4a49f3e905185f9730727301a1729313

              SHA256

              9c7689cd94796a74a1b7397818a10d1896f40ef7fa84c006c8ba3927f8ffe967

              SHA512

              520e6aee04c074c5acd1e9e90ec33969a9ec7598bd5c0e36833a2830b23ec392257e38b371fd3489e0c6b57d9640c56b7d90c7e8970d9e6dd02176cce27c871c

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

              Filesize

              9KB

              MD5

              523d5c39f9d8d2375c3df68251fa2249

              SHA1

              d4ed365c44bec9246fc1a65a32a7791792647a10

              SHA256

              20e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78

              SHA512

              526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4

            • memory/1300-58-0x0000000000400000-0x0000000000430000-memory.dmp

              Filesize

              192KB

            • memory/1300-59-0x0000000010000000-0x000000001002A000-memory.dmp

              Filesize

              168KB

            • memory/1300-52-0x0000000000400000-0x0000000000430000-memory.dmp

              Filesize

              192KB

            • memory/1300-53-0x0000000000400000-0x0000000000430000-memory.dmp

              Filesize

              192KB

            • memory/1300-54-0x0000000000400000-0x0000000000430000-memory.dmp

              Filesize

              192KB

            • memory/1428-120-0x0000000000400000-0x00000000005DA000-memory.dmp

              Filesize

              1.9MB

            • memory/1768-48-0x0000000000400000-0x0000000000A4D000-memory.dmp

              Filesize

              6.3MB

            • memory/2568-116-0x0000000000400000-0x00000000005DA000-memory.dmp

              Filesize

              1.9MB

            • memory/2568-78-0x0000000000400000-0x00000000005DA000-memory.dmp

              Filesize

              1.9MB

            • memory/2568-0-0x0000000000400000-0x00000000005DA000-memory.dmp

              Filesize

              1.9MB

            • memory/2616-10-0x0000000000400000-0x00000000005DA000-memory.dmp

              Filesize

              1.9MB

            • memory/2616-7-0x0000000000400000-0x00000000005DA000-memory.dmp

              Filesize

              1.9MB

            • memory/2872-30-0x0000000000400000-0x0000000000A4D000-memory.dmp

              Filesize

              6.3MB

            • memory/2872-64-0x0000000000400000-0x0000000000A4D000-memory.dmp

              Filesize

              6.3MB

            • memory/3840-117-0x0000000000400000-0x00000000005DA000-memory.dmp

              Filesize

              1.9MB

            • memory/3920-72-0x0000000000400000-0x000000000041C000-memory.dmp

              Filesize

              112KB

            • memory/3920-73-0x0000000000400000-0x000000000041C000-memory.dmp

              Filesize

              112KB

            • memory/3920-71-0x0000000000400000-0x000000000041C000-memory.dmp

              Filesize

              112KB

            • memory/3920-70-0x0000000000400000-0x000000000041C000-memory.dmp

              Filesize

              112KB

            • memory/3920-77-0x0000000000400000-0x000000000041C000-memory.dmp

              Filesize

              112KB

            • memory/3920-69-0x0000000000400000-0x000000000041C000-memory.dmp

              Filesize

              112KB

            • memory/4412-40-0x0000000000400000-0x0000000000441000-memory.dmp

              Filesize

              260KB

            • memory/4412-41-0x0000000000400000-0x0000000000441000-memory.dmp

              Filesize

              260KB

            • memory/4412-46-0x0000000000400000-0x0000000000441000-memory.dmp

              Filesize

              260KB

            • memory/4412-42-0x0000000000400000-0x0000000000441000-memory.dmp

              Filesize

              260KB