Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa4877c6202ab3dd…

MALICIOUS

PDF

42.7 KB Created: 2021-05-30 14:49:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e987c2ad90ec5cc799c85896adfc966c SHA-1: be35b0e2b274770e425f8cf2f85c9548bd336008 SHA-256: fa4877c6202ab3dd692710e1d7cfdb16b5132ae4ef4fb810bfdd458c0612c4d3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "game hacks" or "free generators" to lure users. The primary URL identified is https://netcdn.xyz/app/479516143/how-to-get-minecraft-for-free-on-iphone-game-hack, which is part of a larger campaign distributing similar lures. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9733

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/how-to-get-minecraft-for-free-on-iphone-game-hack In PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-site_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/robux-free-com_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/minecraft-free-version_GM479516143.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://tjiko.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-easy-no-download_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_off00004be0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BE0 25116 bytes
SHA-256: 33d53f433e25ab077f1c5f534efc0e01a9e824cca0c12b2b63e7769d9abd1025
font_01_sfnt_off000084a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84A1 18216 bytes
SHA-256: bed6c76176a434f358ebc88a31d2dbe88cb1547cd8758d4c9ade2f80066016aa