Analysis

  • max time kernel
    145s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-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 2 IoCs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Deletes itself 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 9 IoCs
  • UPX packed file 6 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 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe
    "C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2436
    • C:\Windows\system32\cmd.exe
      cmd.exe /c set
      2⤵
        PID:2328
      • C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe
        PECMD**pecmd-cmd* PUTF -dd -skipb=946176 -len=2045509 "C:\Users\Admin\AppData\Local\Temp\~1033313061269621346.tmp",,C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2992
      • C:\Users\Admin\AppData\Local\Temp\~2992171800725171528~\sg.tmp
        7zG_exe x "C:\Users\Admin\AppData\Local\Temp\~1033313061269621346.tmp" -y -aoa -o"C:\Program Files (x86)\"
        2⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of AdjustPrivilegeToken
        PID:2640
      • C:\Program Files (x86)\ugg.exe
        "C:\Program Files (x86)\\ugg.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • 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:2760
        • 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
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1100
          • C:\Users\Public\Documents\sougou\spolsvt.exe
            C:\Users\Public\Documents\sougou\spolsvt.exe
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1420
            • 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:2348
            • 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:2688
      • C:\Users\Admin\AppData\Local\Temp\261ccf6127419071501f01090e7443779ae9a84e47abc03c38cd652c24d2a51f.exe
        PECMD**pecmd-cmd* EXEC -wd:C: -hide cmd /c "C:\Users\Admin\AppData\Local\Temp\~1663124183249574265.cmd"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2944
        • C:\Windows\system32\cmd.exe
          cmd /c "C:\Users\Admin\AppData\Local\Temp\~1663124183249574265.cmd"
          3⤵
          • Deletes itself
          PID:3064

    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:\Users\Admin\AppData\Local\Temp\~1033313061269621346.tmp

      Filesize

      2.0MB

      MD5

      d248eb4f4ab9e5515aa6a0a9df65c1dc

      SHA1

      74a026cf8877fa20d9f80bef37ff4101b5f2d345

      SHA256

      9d5901dcb20509c8e097c626b7da78203a881d96e05d6170002739d67aa280ab

      SHA512

      954f5e6f442287d9a5e763a32546c374bda9fddf8192130a5a9b6589395acd9a471117ad8c5d9f945a00007b3eaa8bcd526e8467f2b179ba8e384bfbb2837e18

    • C:\Users\Admin\AppData\Local\Temp\~1663124183249574265.cmd

      Filesize

      521B

      MD5

      093f15de9bfbb1af4763993effd21571

      SHA1

      20ada276f16c00b4eca5ac8b008e9428dbb2980d

      SHA256

      2d19df8b2f86592bcc86fcdb4d1483803f3afb2ae1e6080510f1dd59176780e7

      SHA512

      2115f185d438b5403712d70c00a9f7b2e88204e630dcabec5bb0a4f16fedd7e1d5c9c60974dcaba4d4e158a376cfede39465557cdcfce7277995a79d0a912089

    • 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

    • \Program Files (x86)\ugg.exe

      Filesize

      761KB

      MD5

      80c469aef3c93b7062ee21d4dbd1f43f

      SHA1

      df5ddf2d4257e89941c57e4d935da424dfd839a7

      SHA256

      2ca06c6d19785bd5b9e8f05da99311fcaafd64384df164c1f06a33622aaa397b

      SHA512

      e868d2a4d54ee4e16e8fce35447029eb0317dd8da961cf6b44ac13504b1b9fa8046faaaca9d432cd132ef928c247de7a588d9f30fabb3fd8a61a2ee5475006d4

    • \Users\Admin\AppData\Local\Temp\~2992171800725171528~\sg.tmp

      Filesize

      715KB

      MD5

      7c4718943bd3f66ebdb47ccca72c7b1e

      SHA1

      f9edfaa7adb8fa528b2e61b2b251f18da10a6969

      SHA256

      4cc32d00338fc7b206a7c052297acf9ac304ae7de9d61a2475a116959c1524fc

      SHA512

      e18c40d646fa4948f90f7471da55489df431f255041ebb6dcef86346f91078c9b27894e27216a4b2fe2a1c5e501c7953c77893cf696930123d28a322d49e1516

    • memory/1100-59-0x0000000000400000-0x00000000005FA000-memory.dmp

      Filesize

      2.0MB

    • memory/1100-80-0x0000000000400000-0x00000000005FA000-memory.dmp

      Filesize

      2.0MB

    • memory/1420-74-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1420-67-0x0000000000400000-0x0000000000441000-memory.dmp

      Filesize

      260KB

    • memory/1420-69-0x0000000000400000-0x0000000000441000-memory.dmp

      Filesize

      260KB

    • memory/1420-71-0x0000000000400000-0x0000000000441000-memory.dmp

      Filesize

      260KB

    • memory/1420-77-0x0000000000400000-0x0000000000441000-memory.dmp

      Filesize

      260KB

    • memory/1420-73-0x0000000000400000-0x0000000000441000-memory.dmp

      Filesize

      260KB

    • memory/1420-68-0x0000000000400000-0x0000000000441000-memory.dmp

      Filesize

      260KB

    • memory/2348-90-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2348-100-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2348-93-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2348-94-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2348-91-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2348-96-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2348-101-0x0000000010000000-0x000000001002A000-memory.dmp

      Filesize

      168KB

    • memory/2348-97-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2436-118-0x0000000002E90000-0x0000000002FEC000-memory.dmp

      Filesize

      1.4MB

    • memory/2436-0-0x0000000000400000-0x000000000055C000-memory.dmp

      Filesize

      1.4MB

    • memory/2436-7-0x0000000002700000-0x000000000285C000-memory.dmp

      Filesize

      1.4MB

    • memory/2436-32-0x0000000002D90000-0x0000000002F8A000-memory.dmp

      Filesize

      2.0MB

    • memory/2436-119-0x0000000000400000-0x000000000055C000-memory.dmp

      Filesize

      1.4MB

    • memory/2436-120-0x0000000000400000-0x000000000055C000-memory.dmp

      Filesize

      1.4MB

    • memory/2688-133-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/2688-146-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/2688-138-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/2688-132-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/2688-134-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/2688-142-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/2688-141-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/2688-136-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/2760-36-0x0000000000400000-0x00000000005FA000-memory.dmp

      Filesize

      2.0MB

    • memory/2760-83-0x0000000000400000-0x00000000005FA000-memory.dmp

      Filesize

      2.0MB

    • memory/2760-37-0x0000000000400000-0x00000000005FA000-memory.dmp

      Filesize

      2.0MB

    • memory/2760-35-0x0000000000400000-0x00000000005FA000-memory.dmp

      Filesize

      2.0MB

    • memory/2760-34-0x0000000000400000-0x00000000005FA000-memory.dmp

      Filesize

      2.0MB

    • memory/2944-121-0x0000000000400000-0x000000000055C000-memory.dmp

      Filesize

      1.4MB

    • memory/2992-11-0x0000000000400000-0x000000000055C000-memory.dmp

      Filesize

      1.4MB

    • memory/2992-8-0x0000000000400000-0x000000000055C000-memory.dmp

      Filesize

      1.4MB