Analysis

  • max time kernel
    140s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 10:37

General

  • Target
    FFSetup230.exe
  • Size 36.9MB
  • Sample240612-mn9zaavepr
  • SHA256 af8155a3e844a02b36d69bbcf4922e845d0d3eb9dd11c6fd0f777d94d13a7d30
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 56 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops desktop.ini file(s) 2 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 64 IoCs
  • Runs .reg file with regedit 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FFSetup230.exe
    "C:\Users\Admin\AppData\Local\Temp\FFSetup230.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:4068
    • C:\Program Files (x86)\FreeTime\FormatFactory\FFInst.exe
      "C:\Program Files (x86)\FreeTime\FormatFactory\FFInst.exe" /install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3572
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\ac3filter.ax"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:2704
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\AviSplitter.ax"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:1484
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\FLVSplitter.ax"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:1916
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\MatroskaSplitter.ax"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:4472
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\MP4Splitter.ax"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:4864
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\MPCVideoDec.ax"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:4196
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\MpegSplitter.ax"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:1076
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\RealMediaSplitter.ax"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:2492
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\AviSynthPlugins\VSFilter.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:4296
      • C:\Windows\SysWOW64\regedit.exe
        regedit /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\ffdshow\ffdshow.reg"
        3⤵
        • Runs .reg file with regedit
        PID:4956
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\ffdshow\ffdshow.ax"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        PID:1444
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c "C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\Install.bat"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1012
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s avi.dll
          4⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:1980
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s mp4.dll
          4⤵
          • Loads dropped DLL
          PID:3764
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s ogm.dll
          4⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:2224
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s dxr.dll
          4⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:2296
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s ts.dll
          4⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:1612
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s mkx.dll
          4⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:1672
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s avs.dll
          4⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:3928
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s splitter.ax
          4⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:2976
        • C:\Windows\SysWOW64\regedit.exe
          regedit /s Haali.reg
          4⤵
          • Modifies registry class
          • Runs .reg file with regedit
          PID:5000
    • C:\Users\Admin\AppData\Local\Temp\nsg2EFC.tmp\askChecker.exe
      "C:\Users\Admin\AppData\Local\Temp\nsg2EFC.tmp\askChecker.exe" FF
      2⤵
      • Executes dropped EXE
      PID:972
    • C:\Program Files (x86)\FreeTime\FormatFactory\FormatFactory.exe
      "C:\Program Files (x86)\FreeTime\FormatFactory\FormatFactory.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      PID:1356
    • C:\Users\Admin\AppData\Local\Temp\nsg2EFC.tmp\QuickStores.exe
      C:\Users\Admin\AppData\Local\Temp\nsg2EFC.tmp\QuickStores.exe
      2⤵
      • Executes dropped EXE
      PID:1772
      • C:\Users\Admin\AppData\Local\Temp\is-DPB7C.tmp\QuickStores.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-DPB7C.tmp\QuickStores.tmp" /SL5="$E002E,151742,54272,C:\Users\Admin\AppData\Local\Temp\nsg2EFC.tmp\QuickStores.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops desktop.ini file(s)
        • Installs/modifies Browser Helper Object
        • Drops file in Windows directory
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:180
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4112,i,8447163055677043976,7218082390179600880,262144 --variations-seed-version --mojo-platform-channel-handle=4060 /prefetch:8
    1⤵
      PID:1104

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          FFInst.exe

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFInst.exe
          • Size 64KB
          • SHA256 da964451e7da5c3c84d344913a32594c8f9b73597708476c0c10059589cc1ec6
          • MD5 SHA1 SHA512 SSDEEP

          VSFilter.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\AviSynthPlugins\VSFilter.dll
          • Size 980KB
          • SHA256 4900df9612b2d2df1f4a4888e112ed28a75b2914220483a4fe43bdf6aa88f093
          • MD5 SHA1 SHA512 SSDEEP

          AviSplitter.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\AviSplitter.ax
          • Size 362KB
          • SHA256 b6436d454af49c0545db0b6d330749cc07131ad6ddd6baf35e294466302a4179
          • MD5 SHA1 SHA512 SSDEEP

          FLVSplitter.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\FLVSplitter.ax
          • Size 338KB
          • SHA256 64bd6a50c9aefd636e14ecf94b2df98ca7417894eb1a5608d2904f8b1e60dc48
          • MD5 SHA1 SHA512 SSDEEP

          Install.bat

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\Install.bat
          • Size 193B
          • SHA256 8d36760dfe5eef3ad3bc010fc5aa490f59eae4c73bd63ff2515e155d6b1cec37
          • MD5 SHA1 SHA512

          avi.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\avi.dll
          • Size 105KB
          • SHA256 645338afe29c37519e993b1f2061a1a7b2c68b9c817989639e17bbc335603fba
          • MD5 SHA1 SHA512 SSDEEP

          avs.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\avs.dll
          • Size 95KB
          • SHA256 d5bc8cbfd43d0e09e80f224c96b972e5ed7b36670dee38bf1a5569b3ad2d07be
          • MD5 SHA1 SHA512 SSDEEP

          dxr.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\dxr.dll
          • Size 241KB
          • SHA256 d222614600ff0467c8fe339df3538539dc98d248e6c96721017ce9f55337c710
          • MD5 SHA1 SHA512 SSDEEP

          mkunicode.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\mkunicode.dll
          • Size 23KB
          • SHA256 364da76d61452390e93c1f16a47f8f2fb394bccc3ce9a3f06696de3a47bb786f
          • MD5 SHA1 SHA512 SSDEEP

          mkx.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\mkx.dll
          • Size 145KB
          • SHA256 7157191e4f784c25b4febfe5b39ebb89bf23e1cd3a16cbe7976d39af3b4e97da
          • MD5 SHA1 SHA512 SSDEEP

          mkzlib.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\mkzlib.dll
          • Size 77KB
          • SHA256 ad2cfc410bce0f310af565fa62ee46492e312b35f4bf9d8eea350b766e91f3ab
          • MD5 SHA1 SHA512 SSDEEP

          mp4.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\mp4.dll
          • Size 138KB
          • SHA256 0757e15a00dc6144b957ba5b4ac621a1956ca7cb2a464cc8d730a84c0893b95a
          • MD5 SHA1 SHA512 SSDEEP

          ogm.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\ogm.dll
          • Size 118KB
          • SHA256 c95048f3f3ad2b7a7a85575646fcc8dd0145741323e61a0c1819edc7153f0e1a
          • MD5 SHA1 SHA512 SSDEEP

          splitter.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\splitter.ax
          • Size 524KB
          • SHA256 b7ab7be5ea978617f2f6b5019092256a1bccd1d74d1e888a0207892c89b464d3
          • MD5 SHA1 SHA512 SSDEEP

          ts.dll

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\Haali\ts.dll
          • Size 160KB
          • SHA256 d0b7a79b1650cc80f4e5e3ca872e3af251fe67e8fa7bd4c5de4abba7cb977650
          • MD5 SHA1 SHA512 SSDEEP

          MP4Splitter.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\MP4Splitter.ax
          • Size 502KB
          • SHA256 d10be76e3f3a1f62ada23b0b708bc29a2413dc09a00d8367add330957201af04
          • MD5 SHA1 SHA512 SSDEEP

          MPCVideoDec.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\MPCVideoDec.ax
          • Size 2.3MB
          • SHA256 3040061859f35d5a7f48a8980accf42eb71f2c75588ef87e42c99d8ffb4241a9
          • MD5 SHA1 SHA512 SSDEEP

          MatroskaSplitter.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\MatroskaSplitter.ax
          • Size 445KB
          • SHA256 6f51a4715bd7912026d75f921f006874012ae2784e7d6908a8b95cd8a045be68
          • MD5 SHA1 SHA512 SSDEEP

          MpegSplitter.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\MpegSplitter.ax
          • Size 384KB
          • SHA256 f90b2953e43fa1130554bfb4b8bb6aafbbc75fd5a3e5dd4b7cf3d5044c31dd8e
          • MD5 SHA1 SHA512 SSDEEP

          RealMediaSplitter.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\RealMediaSplitter.ax
          • Size 424KB
          • SHA256 2e29e053b0b84a8b2fa20317a4bb9f99c42003a33b0b43b0acafd32a4b0168e5
          • MD5 SHA1 SHA512 SSDEEP

          ac3filter.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\ac3filter.ax
          • Size 778KB
          • SHA256 73b931b7e229ab515bc3b2ae6c6e32b07be744bca85b362a3c9af5b1b559936d
          • MD5 SHA1 SHA512 SSDEEP

          ffdshow.ax

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\ffdshow\ffdshow.ax
          • Size 3.4MB
          • SHA256 6e2cd0cbcadf1268de728c1d7dfa0bb3131bf3cf5a6d03bcdbb611b4b255144b
          • MD5 SHA1 SHA512 SSDEEP

          ffdshow.reg

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FFModules\Filters\ffdshow\ffdshow.reg
          • Size 6KB
          • SHA256 b9044ed1412c49e832c1f2fb13febd85132fff271082c3009235f53f5a8ba7c5
          • MD5 SHA1 SHA512 SSDEEP

          FormatFactory.exe

          • Path C:\Program Files (x86)\FreeTime\FormatFactory\FormatFactory.exe
          • Size 2.3MB
          • SHA256 b54f24659a44f4ceeb0c0a7790798a4ef56dfda4c11ffec8d31f3dd067c34c5a
          • MD5 SHA1 SHA512 SSDEEP

          AdvSplash.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsg2EFC.tmp\AdvSplash.dll
          • Size 6KB
          • SHA256 0667863d71a3021ab844069b6dd0485f874bf638af478ab11c6fb8b7d6c834b6
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsg2EFC.tmp\System.dll
          • Size 11KB
          • SHA256 dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3
          • MD5 SHA1 SHA512 SSDEEP

          nsDialogs.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsg2EFC.tmp\nsDialogs.dll
          • Size 9KB
          • SHA256 3d0060c5c9400a487dbefe4ac132dd96b07d3a4ba3badab46a7410a667c93457
          • MD5 SHA1 SHA512 SSDEEP

          Update.exe

          • Path C:\Windows\assembly\tmp\30ROE94Y\Update.exe
          • Size 44KB
          • SHA256 0e7bcd39f8255eaa3c9dc017586fc52f6912c0c34fabea3143beef7b211ec4a6
          • MD5 SHA1 SHA512 SSDEEP

          QuickStoresToolbar.dll

          • Path C:\Windows\assembly\tmp\5ZY4HSUI\QuickStoresToolbar.dll
          • Size 36KB
          • SHA256 617b1f1dd8765f9483c9671b3d3ebce9f359f708b88ab7494f53399ffba84076
          • MD5 SHA1 SHA512 SSDEEP

          Interop.SHDocVw.dll

          • Path C:\Windows\assembly\tmp\ZJ7UBF2L\Interop.SHDocVw.dll
          • Size 124KB
          • SHA256 d84e2fcb321bb969eebca48d44787fffc8016f70660c4a58e46589dd22906bda
          • MD5 SHA1 SHA512 SSDEEP

          memory/180-429-0x0000000000400000-0x00000000004BA000-memory.dmp

          memory/1356-351-0x0000000000B10000-0x0000000000FD2000-memory.dmp

          memory/1672-326-0x0000000001230000-0x0000000001246000-memory.dmp

          memory/1772-352-0x0000000000400000-0x0000000000414000-memory.dmp

          memory/1772-430-0x0000000000400000-0x0000000000414000-memory.dmp

          memory/2976-337-0x0000000000D00000-0x0000000000D16000-memory.dmp

          memory/3764-308-0x00000000015C0000-0x00000000015D6000-memory.dmp