Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8ff6caed4f95cce…

MALICIOUS

PDF

41.2 KB Created: 2021-05-20 01:07:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7a0c57f64192073a4147ee64b57b4b9a SHA-1: e0ad20f3d2a5a42e6eaecb4398e97b890c2aa097 SHA-256: b8ff6caed4f95ccebede416ad8208dd64a21ce84a2f6bc33c4bcc5910a42b66c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to known malicious infrastructure, specifically targeting users with lures for game hacks and generators. The heuristic firings confirm the presence of malicious redirector links and a game hack lure. While no scripts were explicitly extracted, the document's structure and embedded URLs suggest an attempt to lead the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/1330123889/pubg-uc-zarah-game-hack In PDF document text
    • http://eddegrootassurantien.nl/images/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/how-to-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000448c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x448C 25420 bytes
SHA-256: ee2167e273c24df0e8a6c2d602467643bac5c8c2ac68694b9b32c71db1757270
font_01_sfnt_off00007e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2A 18384 bytes
SHA-256: 78a3ccc61517e0c283e1bf617c4871e7823f118dbe6e3995d9685870a5493b80

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