Overview

overview

5

Static

static

1

PDFFlows-S...80.exe

windows10-2004-x64

5

PDFFlows-S...80.exe

windows11-ltsc_2024-x64

5

Analysis

  • user interaction
    yes
  • max time kernel
    298s
  • max time network
    283s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-fr
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-frlocale:fr-fros:windows11-ltsc_2024-x64systemwindows
  • submitted
    12/08/2026, 08:51

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General

  • Target
    PDFFlows-Setup-v3.2.80.exe
  • Size 3.6MB
  • Sample260812-ksd2assgnd
  • SHA256 8ff0daf3ed564cc743c0e23ff2e253997ffc74460f9673f0b6dd037b2db4ce7b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
5/10
discoverypersistenceprivilege_escalation

Malware Config

Signatures

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Drops file in Program Files directory 60 IoCs
  • Executes dropped EXE 14 IoCs
  • Modifies system executable filetype association 2 TTPs 4 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PDFFlows-Setup-v3.2.80.exe
    "C:\Users\Admin\AppData\Local\Temp\PDFFlows-Setup-v3.2.80.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Program Files\WinRAR\uninstall.exe
      "C:\Program Files\WinRAR\uninstall.exe" /setup
      2⤵
      • Drops file in Program Files directory
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2532
      • C:\Program Files\WinRAR\RarExtInstaller.exe
        "C:\Program Files\WinRAR\RarExtInstaller.exe" -install
        3⤵
        • Executes dropped EXE
        PID:4908
  • C:\Program Files\WinRAR\RarExtInstaller.exe
    "C:\Program Files\WinRAR\RarExtInstaller.exe" /install /local
    1⤵
    • Executes dropped EXE
    PID:4360
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
    1⤵
      PID:4828
    • C:\Program Files\WinRAR\WinRAR.exe
      "C:\Program Files\WinRAR\WinRAR.exe"
      1⤵
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of WriteProcessMemory
      PID:4052
      • C:\Program Files\WinRAR\RarExtInstaller.exe
        "C:\Program Files\WinRAR\RarExtInstaller.exe" -install
        2⤵
        • Executes dropped EXE
        PID:1464
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
      1⤵
        PID:5796
      • C:\Program Files\WinRAR\WinRAR.exe
        "C:\Program Files\WinRAR\WinRAR.exe"
        1⤵
        • Executes dropped EXE
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        PID:5976
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
        1⤵
          PID:4936
        • C:\Program Files\WinRAR\WinRAR.exe
          "C:\Program Files\WinRAR\WinRAR.exe"
          1⤵
          • Executes dropped EXE
          • Modifies registry class
          • Suspicious behavior: GetForegroundWindowSpam
          PID:5112
        • C:\Windows\system32\NOTEPAD.EXE
          "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
          1⤵
            PID:5704
          • C:\Program Files\WinRAR\WinRAR.exe
            "C:\Program Files\WinRAR\WinRAR.exe"
            1⤵
            • Executes dropped EXE
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            PID:1596
          • C:\Windows\system32\NOTEPAD.EXE
            "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
            1⤵
              PID:5408
            • C:\Program Files\WinRAR\WinRAR.exe
              "C:\Program Files\WinRAR\WinRAR.exe"
              1⤵
              • Executes dropped EXE
              • Modifies registry class
              PID:4456
            • C:\Windows\system32\NOTEPAD.EXE
              "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
              1⤵
                PID:4944
              • C:\Program Files\WinRAR\WinRAR.exe
                "C:\Program Files\WinRAR\WinRAR.exe"
                1⤵
                • Executes dropped EXE
                • Modifies registry class
                • Suspicious behavior: GetForegroundWindowSpam
                PID:2092
              • C:\Windows\system32\NOTEPAD.EXE
                "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                1⤵
                  PID:708
                • C:\Program Files\WinRAR\WinRAR.exe
                  "C:\Program Files\WinRAR\WinRAR.exe"
                  1⤵
                  • Executes dropped EXE
                  • Modifies registry class
                  PID:2612
                • C:\Windows\system32\NOTEPAD.EXE
                  "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                  1⤵
                    PID:4380
                  • C:\Program Files\WinRAR\WinRAR.exe
                    "C:\Program Files\WinRAR\WinRAR.exe"
                    1⤵
                    • Executes dropped EXE
                    • Modifies registry class
                    • Suspicious behavior: GetForegroundWindowSpam
                    PID:872
                  • C:\Windows\system32\NOTEPAD.EXE
                    "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                    1⤵
                      PID:3048
                    • C:\Program Files\WinRAR\WinRAR.exe
                      "C:\Program Files\WinRAR\WinRAR.exe"
                      1⤵
                      • Executes dropped EXE
                      • Modifies registry class
                      PID:1220
                    • C:\Windows\system32\NOTEPAD.EXE
                      "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                      1⤵
                        PID:6040
                      • C:\Program Files\WinRAR\WinRAR.exe
                        "C:\Program Files\WinRAR\WinRAR.exe"
                        1⤵
                        • Executes dropped EXE
                        • Modifies registry class
                        • Suspicious behavior: GetForegroundWindowSpam
                        PID:1584
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k GPSvcGroup
                        1⤵
                          PID:3400

                        Network

                              MITRE ATT&CK Enterprise v16

                              Replay Monitor

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                              Downloads

                              Rar.exe
                              • Path C:\Program Files\WinRAR\Rar.exe
                              • Size 816KB
                              • SHA256 f561764bc3e9ed208744321a89a819b562edeaf06e203c02a06976121fda1991
                              • MD5 SHA1 SHA512 SSDEEP TLSH
                              Submit Download

                              Rar.txt
                              • Path C:\Program Files\WinRAR\Rar.txt
                              • Size 110KB
                              • SHA256 626b437acc8c23be798b1f3233f5636e64245941fb931f322cd9e65cb8c56a1f
                              • MD5 SHA1 SHA512 SSDEEP TLSH
                              Submit Download

                              RarExtInstaller.exe
                              • Path C:\Program Files\WinRAR\RarExtInstaller.exe
                              • Size 218KB
                              • SHA256 0e87a2551e1b6a50b20529d44d1a0e0cbdb25e464310ba301129f097d913eecc
                              • MD5 SHA1 SHA512 SSDEEP TLSH
                              Submit Download

                              RarExtPackage.msix
                              • Path C:\Program Files\WinRAR\RarExtPackage.msix
                              • Size 23KB
                              • SHA256 9bd99b011fc9053589e97a4845ba2951d334fa6412190cd0d5f78d6a3e4d3d3d
                              • MD5 SHA1 SHA512 SSDEEP TLSH
                              Submit Download

                              UnRAR.exe
                              • Path C:\Program Files\WinRAR\UnRAR.exe
                              • Size 547KB
                              • SHA256 0d3715001790f0fd18d3e850f947b540530b2d2deb9a2e6a9e84f2ed7b234235
                              • MD5 SHA1 SHA512 SSDEEP TLSH
                              Submit Download

                              Uninstall.exe
                              • Path C:\Program Files\WinRAR\Uninstall.exe
                              • Size 403KB
                              • SHA256 b2c9507de96f47f81a183985c2c1e350ee68fead1da3d91b90e5cfdb2dd46a56
                              • MD5 SHA1 SHA512 SSDEEP TLSH
                              Submit Download

                              WhatsNew.txt
                              • Path C:\Program Files\WinRAR\WhatsNew.txt
                              • Size 64KB
                              • SHA256 aadee800c40e3437867f644057dee828e67fcc6da65004b0a981c000a4e0a58d
                              • MD5 SHA1 SHA512 SSDEEP TLSH
                              Submit Download

                              WinRAR.chm
                              • Path C:\Program Files\WinRAR\WinRAR.chm
                              • Size 320KB
                              • SHA256 cb5edb04ac5e879243dae4f1f6d8253b8653dc6c57473bd0b3f3d23fd1861f61
                              • MD5 SHA1 SHA512 SSDEEP TLSH
                              Submit Download

                              WinRAR.exe
                              • Path C:\Program Files\WinRAR\WinRAR.exe
                              • Size 3.2MB
                              • SHA256 130d6b728ba6f4b129c84cd3a6ee0b71a11219f813c4df181fb6823ffba7f484
                              • MD5 SHA1 SHA512 SSDEEP TLSH
                              Submit Download

                              8EC9B1D0ABBD7F98B401D425828828CE_D96A4C3B75E862E237A6B89F58F74354
                              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_D96A4C3B75E862E237A6B89F58F74354
                              • Size 727B
                              • SHA256 2b7c561cf0bdffddba6a60a7393961d7d8b37a34becc3052f54ce11b98628839
                              • MD5 SHA1 SHA512 TLSH
                              Submit Download

                              C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
                              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
                              • Size 727B
                              • SHA256 0ca573331367d6c534063850562ddc822c490e2ccd606c0d0932fb332cbecde7
                              • MD5 SHA1 SHA512 TLSH
                              Submit Download

                              8EC9B1D0ABBD7F98B401D425828828CE_D96A4C3B75E862E237A6B89F58F74354
                              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_D96A4C3B75E862E237A6B89F58F74354
                              • Size 404B
                              • SHA256 cfc966d73a851f99d90e1d93ffab4bafd513eefe47a697303f5a3c2671094b44
                              • MD5 SHA1 SHA512 TLSH
                              Submit Download

                              C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
                              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
                              • Size 412B
                              • SHA256 5526272dab3a75e7aa4a2363c44c8b2e2ba7fb4fc21266e5936011c06bfadedb
                              • MD5 SHA1 SHA512 TLSH
                              Submit Download

                              version.dat
                              • Path C:\Users\Admin\AppData\Roaming\WinRAR\version.dat
                              • Size 12B
                              • SHA256 5475b3b0e08a73aadb336bcb9d3993fc2480a87fe291adc9017ef6e9f15c58cd
                              • MD5 SHA1 SHA512
                              Submit Download