Overview

overview

5

Static

static

1

PDFFlows-S...36.exe

windows10-2004-x64

5

PDFFlows-S...36.exe

windows11-ltsc_2024-x64

5

Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    22/07/2026, 18:24

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General

  • Target
    PDFFlows-Setup-v3.2.36.exe
  • Size 3.6MB
  • Sample260722-w2d87ser3z
  • SHA256 cfca124c2141b4171cebad48cc286751910b408aec69767db2bc3af38f277a06
  • 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 20 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 13 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PDFFlows-Setup-v3.2.36.exe
    "C:\Users\Admin\AppData\Local\Temp\PDFFlows-Setup-v3.2.36.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4812
    • 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:5992
      • C:\Program Files\WinRAR\RarExtInstaller.exe
        "C:\Program Files\WinRAR\RarExtInstaller.exe" -install
        3⤵
        • Executes dropped EXE
        PID:4516
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
    1⤵
      PID:1548
    • 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:5552
      • C:\Program Files\WinRAR\RarExtInstaller.exe
        "C:\Program Files\WinRAR\RarExtInstaller.exe" -install
        2⤵
        • Executes dropped EXE
        PID:5256
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
      1⤵
        PID:6136
      • C:\Program Files\WinRAR\WinRAR.exe
        "C:\Program Files\WinRAR\WinRAR.exe"
        1⤵
        • Executes dropped EXE
        PID:1948
      • C:\Program Files\WinRAR\RarExtInstaller.exe
        "C:\Program Files\WinRAR\RarExtInstaller.exe" /install /local
        1⤵
        • Executes dropped EXE
        PID:4112
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
        1⤵
          PID:6096
        • 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:1980
          • C:\Program Files\WinRAR\RarExtInstaller.exe
            "C:\Program Files\WinRAR\RarExtInstaller.exe" -install
            2⤵
            • Executes dropped EXE
            PID:1684
        • C:\Windows\system32\NOTEPAD.EXE
          "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
          1⤵
            PID:1932
          • C:\Program Files\WinRAR\WinRAR.exe
            "C:\Program Files\WinRAR\WinRAR.exe"
            1⤵
            • Executes dropped EXE
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            PID:3944
          • C:\Windows\system32\NOTEPAD.EXE
            "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
            1⤵
              PID:4476
            • C:\Program Files\WinRAR\WinRAR.exe
              "C:\Program Files\WinRAR\WinRAR.exe"
              1⤵
              • Executes dropped EXE
              • Modifies registry class
              • Suspicious behavior: GetForegroundWindowSpam
              PID:3900
            • C:\Windows\system32\NOTEPAD.EXE
              "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
              1⤵
                PID:1832
              • C:\Program Files\WinRAR\WinRAR.exe
                "C:\Program Files\WinRAR\WinRAR.exe"
                1⤵
                • Executes dropped EXE
                • Modifies registry class
                • Suspicious behavior: GetForegroundWindowSpam
                PID:1208
              • C:\Windows\system32\NOTEPAD.EXE
                "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                1⤵
                  PID:4900
                • C:\Program Files\WinRAR\WinRAR.exe
                  "C:\Program Files\WinRAR\WinRAR.exe"
                  1⤵
                  • Executes dropped EXE
                  • Modifies registry class
                  PID:1852
                • C:\Windows\system32\NOTEPAD.EXE
                  "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                  1⤵
                    PID:3252
                  • C:\Program Files\WinRAR\WinRAR.exe
                    "C:\Program Files\WinRAR\WinRAR.exe"
                    1⤵
                    • Executes dropped EXE
                    • Suspicious behavior: GetForegroundWindowSpam
                    PID:2340
                  • C:\Windows\system32\NOTEPAD.EXE
                    "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                    1⤵
                      PID:5556
                    • C:\Program Files\WinRAR\WinRAR.exe
                      "C:\Program Files\WinRAR\WinRAR.exe"
                      1⤵
                      • Executes dropped EXE
                      • Modifies registry class
                      • Suspicious behavior: GetForegroundWindowSpam
                      PID:6012
                    • C:\Windows\system32\NOTEPAD.EXE
                      "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                      1⤵
                        PID:4552
                      • C:\Program Files\WinRAR\WinRAR.exe
                        "C:\Program Files\WinRAR\WinRAR.exe"
                        1⤵
                        • Executes dropped EXE
                        • Modifies registry class
                        • Suspicious behavior: GetForegroundWindowSpam
                        PID:6052
                      • C:\Windows\system32\NOTEPAD.EXE
                        "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                        1⤵
                          PID:6076
                        • C:\Program Files\WinRAR\WinRAR.exe
                          "C:\Program Files\WinRAR\WinRAR.exe"
                          1⤵
                          • Executes dropped EXE
                          • Modifies registry class
                          • Suspicious behavior: GetForegroundWindowSpam
                          PID:3916
                        • C:\Windows\system32\NOTEPAD.EXE
                          "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                          1⤵
                            PID:3044
                          • C:\Program Files\WinRAR\WinRAR.exe
                            "C:\Program Files\WinRAR\WinRAR.exe"
                            1⤵
                            • Executes dropped EXE
                            • Modifies registry class
                            • Suspicious behavior: GetForegroundWindowSpam
                            PID:1436
                          • C:\Windows\system32\NOTEPAD.EXE
                            "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                            1⤵
                              PID:1608
                            • C:\Program Files\WinRAR\WinRAR.exe
                              "C:\Program Files\WinRAR\WinRAR.exe"
                              1⤵
                              • Executes dropped EXE
                              • Modifies registry class
                              • Suspicious behavior: GetForegroundWindowSpam
                              PID:1464
                            • C:\Windows\system32\NOTEPAD.EXE
                              "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                              1⤵
                                PID:5192
                              • C:\Program Files\WinRAR\WinRAR.exe
                                "C:\Program Files\WinRAR\WinRAR.exe"
                                1⤵
                                • Executes dropped EXE
                                • Modifies registry class
                                • Suspicious behavior: GetForegroundWindowSpam
                                PID:520
                              • C:\Windows\system32\NOTEPAD.EXE
                                "C:\Windows\system32\NOTEPAD.EXE" C:\Program Files\WinRAR\WhatsNew.txt
                                1⤵
                                  PID:6068
                                • C:\Program Files\WinRAR\WinRAR.exe
                                  "C:\Program Files\WinRAR\WinRAR.exe"
                                  1⤵
                                  • Executes dropped EXE
                                  • Modifies registry class
                                  • Suspicious behavior: GetForegroundWindowSpam
                                  PID:4584

                                Network

                                      MITRE ATT&CK Enterprise v16

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                                      Downloads

                                      Rar.exe
                                      • Path C:\Program Files\WinRAR\Rar.exe
                                      • Size 816KB
                                      • SHA256 2ce9d9f8cd10e8ceb3a943e1464938ecab682313f8e4525df17068b3eae5b05b
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      Rar.txt
                                      • Path C:\Program Files\WinRAR\Rar.txt
                                      • Size 110KB
                                      • SHA256 c6eb9a85f529808571cd04e3d752b5269d3b7be0b3f2f1cbac011942b326103e
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      RarExtInstaller.exe
                                      • Path C:\Program Files\WinRAR\RarExtInstaller.exe
                                      • Size 218KB
                                      • SHA256 eefc81979f082c8dbab05ff3a68930501f2226a7e2688903b2806e2eb6837a5a
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      RarExtPackage.msix
                                      • Path C:\Program Files\WinRAR\RarExtPackage.msix
                                      • Size 23KB
                                      • SHA256 74d160f732ae20d0e10088aa7b609d903801fd27ff16270a1c1ec0e7724fb33a
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      UnRAR.exe
                                      • Path C:\Program Files\WinRAR\UnRAR.exe
                                      • Size 547KB
                                      • SHA256 e785a0c0dcf79385f0483c1eb2242e3937d0447f6b21dd158906e92757b46542
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      Uninstall.exe
                                      • Path C:\Program Files\WinRAR\Uninstall.exe
                                      • Size 402KB
                                      • SHA256 926df1506082e88f388f394f4c9d190a23b21e1519acf03d0e474528bb920c8b
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      WhatsNew.txt
                                      • Path C:\Program Files\WinRAR\WhatsNew.txt
                                      • Size 61KB
                                      • SHA256 5ec6594b8e544fe47985ddf252f895af17c5db5e4655b6bdb7c45e890844b513
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      WinRAR.chm
                                      • Path C:\Program Files\WinRAR\WinRAR.chm
                                      • Size 321KB
                                      • SHA256 3f63a1c62f171902906e0b0bd720259aafe4786ddc5078953da73ac77f9ffea4
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      WinRAR.exe
                                      • Path C:\Program Files\WinRAR\WinRAR.exe
                                      • Size 3.3MB
                                      • SHA256 b3a8469d2b132391d206d0799b34c563c0bdf6e7166a378e249f45848f5f1cb8
                                      • MD5 SHA1 SHA512 SSDEEP TLSH
                                      Submit Download

                                      8EC9B1D0ABBD7F98B401D425828828CE_D96A4C3B75E862E237A6B89F58F74354
                                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8EC9B1D0ABBD7F98B401D425828828CE_D96A4C3B75E862E237A6B89F58F74354
                                      • Size 727B
                                      • SHA256 dcb6edb4a81d53e90390d33d648a9848209a4d46817159b051ee190b43db3199
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
                                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
                                      • Size 727B
                                      • SHA256 6d2d75d1a6eb0fe58611d3cc961aa193da86ee077c98ba511db3c8316ad5d35e
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      8EC9B1D0ABBD7F98B401D425828828CE_D96A4C3B75E862E237A6B89F58F74354
                                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8EC9B1D0ABBD7F98B401D425828828CE_D96A4C3B75E862E237A6B89F58F74354
                                      • Size 404B
                                      • SHA256 615257a950c0ad8f60cd6ca22d79042111684a7db9d76442ac973f3bae21de5b
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
                                      • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141
                                      • Size 412B
                                      • SHA256 f174a96b329df1804ea4eb7e24364a6f4a31e676f97b981b778d6424f9f6e270
                                      • MD5 SHA1 SHA512 TLSH
                                      Submit Download

                                      version.dat
                                      • Path C:\Users\Admin\AppData\Roaming\WinRAR\version.dat
                                      • Size 12B
                                      • SHA256 cbf7b25abf1ff9ffcdb2d8fcb85d8a748fc47c8c849a636aa11532c51c63be6b
                                      • MD5 SHA1 SHA512
                                      Submit Download