Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/06/2026, 15:24

General

  • Target
    OficioPCPE.pdf.exe
  • Size 62.9MB
  • Sample260629-stem8agw7t
  • SHA256 57dac1b0fa9e682d746a942301e285c8cf030e42a00ec79aac16400eb65bce64
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 14 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Inno Setup is an open-source installation builder for Windows applications. 2 IoCs

    Inno Setup installer

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OficioPCPE.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\OficioPCPE.pdf.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:6004
    • C:\Users\Admin\AppData\Local\Temp\is-LYOJ81291X.tmp\OficioPCPE.pdf.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-LYOJ81291X.tmp\OficioPCPE.pdf.tmp" /SL5="$5021E,64665588,887296,C:\Users\Admin\AppData\Local\Temp\OficioPCPE.pdf.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5744
      • C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe
        "C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe"
        3⤵
        • Adds Run key to start application
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:4304
        • C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe
          "C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe" --type=gpu-process --field-trial-handle=1548,15372897351811325307,15346686220377794590,131072 --enable-features=WebComponentsV0Enabled --disable-features=CertVerifierService,CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1564 /prefetch:2
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2684
        • C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe
          "C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1548,15372897351811325307,15346686220377794590,131072 --enable-features=WebComponentsV0Enabled --disable-features=CertVerifierService,CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1940 /prefetch:8
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:2832
        • C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe
          "C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe" --type=gpu-process --field-trial-handle=1548,15372897351811325307,15346686220377794590,131072 --enable-features=WebComponentsV0Enabled --disable-features=CertVerifierService,CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.26100.1301 --gpu-preferences=SAAAAAAAAADoAAAwAAAAAAAAAAAAAAAAAABgAAAQAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1480 /prefetch:2
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:6224
  • C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe
    "C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe"
    1⤵
    • Adds Run key to start application
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3380
    • C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe
      "C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe" --type=gpu-process --field-trial-handle=1652,9283824384078526578,743902456143825240,131072 --enable-features=WebComponentsV0Enabled --disable-features=CertVerifierService,CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1660 /prefetch:2
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4892
    • C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe
      "C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1652,9283824384078526578,743902456143825240,131072 --enable-features=WebComponentsV0Enabled --disable-features=CertVerifierService,CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --lang=en-US --service-sandbox-type=network --mojo-platform-channel-handle=1992 /prefetch:8
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:5920
    • C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe
      "C:\Users\Admin\AppData\Local\SmartToolproProTool\Boost Note.exe" --type=gpu-process --field-trial-handle=1652,9283824384078526578,743902456143825240,131072 --enable-features=WebComponentsV0Enabled --disable-features=CertVerifierService,CookiesWithoutSameSiteMustBeSecure,SameSiteByDefaultCookies,SpareRendererForSitePerProcess --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=5140 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.26100.1301 --gpu-preferences=SAAAAAAAAADoAAAwAAAAAAAAAAAAAAAAAABgAAAQAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1576 /prefetch:2
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:1056

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        d3dcompiler_47.dll

        • Path C:\Users\Admin\AppData\Local\SmartToolproProTool\d3dcompiler_47.dll
        • Size 4.3MB
        • SHA256 44422e6936dc72b7ac5ed16bb8bcae164b7554513e52efb66a3e942cec328a47
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ffmpeg.dll

        • Path C:\Users\Admin\AppData\Local\SmartToolproProTool\ffmpeg.dll
        • Size 2.7MB
        • SHA256 8653b57b37618f11e358c93aad9dc9ef0193f0288f7e59147194e42b0842b50e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libEGL.dll

        • Path C:\Users\Admin\AppData\Local\SmartToolproProTool\swiftshader\libEGL.dll
        • Size 458KB
        • SHA256 bfd1d3fb9e50a3d9a58d9c62663fbf46bedcac24744020b801c9bb4cdc55f977
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libGLESv2.dll

        • Path C:\Users\Admin\AppData\Local\SmartToolproProTool\swiftshader\libGLESv2.dll
        • Size 3.1MB
        • SHA256 54b6e787450bfcebed843ad1dafb31ca0904a908131d1005b567513ee8e2db46
        • MD5 SHA1 SHA512 SSDEEP TLSH

        LICENSE_799f1d

        • Path C:\Users\Admin\AppData\Local\Temp\is-KH5HZZAPYS.tmp\LICENSE_799f1d
        • Size 765B
        • SHA256 4ec3d4c66cd87f5c8d8ad911b10f99bf27cb00cdfcff82621956e379186b016b
        • MD5 SHA1 SHA512 TLSH

        LICENSE_7d9dbf

        • Path C:\Users\Admin\AppData\Local\Temp\is-KH5HZZAPYS.tmp\LICENSE_7d9dbf
        • Size 1KB
        • SHA256 0194571d45a06ea2a22ceb51f981e3be92525966d28847dbc0d9982603bf90de
        • MD5 SHA1 SHA512 TLSH

        LICENSE_8a3d6d

        • Path C:\Users\Admin\AppData\Local\Temp\is-KH5HZZAPYS.tmp\LICENSE_8a3d6d
        • Size 1KB
        • SHA256 861908ec818ff6142fdd6c4b66d6264c206d3d5a46003b1342e1853a9a85abac
        • MD5 SHA1 SHA512 TLSH

        LICENSE_f3aaee

        • Path C:\Users\Admin\AppData\Local\Temp\is-KH5HZZAPYS.tmp\LICENSE_f3aaee
        • Size 1KB
        • SHA256 3fe8d55a98dbf260eace67c00cf9bc53edb46234e840098a0b93df3096b97fb6
        • MD5 SHA1 SHA512 TLSH

        angular-sprintf.min.map

        • Path C:\Users\Admin\AppData\Local\Temp\is-KH5HZZAPYS.tmp\angular-sprintf.min.map
        • Size 429B
        • SHA256 3d6885b5d3ebce0c1119d558c8784806cc79f076a5af8279051b7e94c412b697
        • MD5 SHA1 SHA512 TLSH

        license_e1a10c

        • Path C:\Users\Admin\AppData\Local\Temp\is-KH5HZZAPYS.tmp\license_e1a10c
        • Size 1KB
        • SHA256 48da2f39e100d4085767e94966b43f4fa95ff6a0698fba57ed460914e35f94a0
        • MD5 SHA1 SHA512 TLSH

        license_e57c8f

        • Path C:\Users\Admin\AppData\Local\Temp\is-KH5HZZAPYS.tmp\license_e57c8f
        • Size 1KB
        • SHA256 5c932d88256b4ab958f64a856fa48e8bd1f55bc1d96b8149c65689e0c61789d3
        • MD5 SHA1 SHA512 TLSH

        pako_inflate.js

        • Path C:\Users\Admin\AppData\Local\Temp\is-KH5HZZAPYS.tmp\pako_inflate.js
        • Size 106KB
        • SHA256 ec7e5936c652800e132c63cc1fcd00c23103a6a10a294ed3736bab70e38fc592
        • MD5 SHA1 SHA512 SSDEEP TLSH

        updateInfo.js.map

        • Path C:\Users\Admin\AppData\Local\Temp\is-KH5HZZAPYS.tmp\updateInfo.js.map
        • Size 68B
        • SHA256 7318ccc42e283138707b3e67f39f03753f5ba998ab0d4e5bbe28fc79bc4f28e4
        • MD5 SHA1 SHA512 TLSH

        OficioPCPE.pdf.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-LYOJ81291X.tmp\OficioPCPE.pdf.tmp
        • Size 4.2MB
        • SHA256 414c505925499139935aa5123fdef21b89827980482ea8c60cf196616119c83d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        daemon.log

        • Path C:\Users\Admin\AppData\Roaming\daemon.log
        • Size 8B
        • SHA256 dd344c2e4e00d292e2531efa81b609f49006eedf6b8df5e4d82a2adf9b7bfd5e
        • MD5 SHA1 SHA512

        memory/2684-1789-0x00007FFBE8A80000-0x00007FFBE8A81000-memory.dmp

        memory/2684-1812-0x0000022C640E0000-0x0000022C64187000-memory.dmp

        memory/4892-1813-0x00000256B1900000-0x00000256B19A7000-memory.dmp

        memory/5744-6-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

        memory/5744-1811-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

        memory/5744-1810-0x0000000000EB0000-0x00000000012FD000-memory.dmp

        memory/6004-0-0x0000000000E50000-0x0000000000F38000-memory.dmp

        memory/6004-1809-0x0000000000E50000-0x0000000000F38000-memory.dmp