Malicious PDF — malware analysis report

Static analysis result for SHA-256 794a071765e5eaac…

MALICIOUS

PDF

40.2 KB Created: 2021-05-21 14:58:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fc935f2f15ad41e0c1acb3c9b202b156 SHA-1: 6a017f4d970def0aaaf15ce26cbeb42d34ba603e SHA-256: 794a071765e5eaac8c4b88776f2141f183c166da836007e16c1224c2cbd82b3e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising "free generators" and "game hacks" to entice users. The document body and embedded links suggest a lure for downloading potentially unwanted or malicious software. The presence of embedded URLs and the ML classifier firing indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7885

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/minecraft-windows-10-edition-free-with-java-game-hack In PDF document text
    • https://gigbagwinkel.nl/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/coin-master-link-app_GM406889139.pdfIn PDF document text
    • https://gigbagwinkel.nl/images/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000377c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x377C 24936 bytes
SHA-256: 639ba2e2e70975ae4aa6326e7b626884a95be4a7e245d223d09df9f96af84f13
font_01_sfnt_off0000701d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701D 2824 bytes
SHA-256: 61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b
font_02_sfnt_off000079c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79C4 18972 bytes
SHA-256: 6c20506a37f57d149a2d60f903306920f0d4438cf2101358cedc4e984bc12f18

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