Malicious PDF — malware analysis report

Static analysis result for SHA-256 52f8b44a99f36467…

MALICIOUS

PDF

34.8 KB Created: 2021-06-28 22:36:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3753d32464a38e0eadb6457bf795b5b8 SHA-1: fd6621f8dd72e9e19a9f709c22a25efb9f90451b SHA-256: 52f8b44a99f36467868dcbe3a535ce2810640b5391c61ad4d2a60815c35bf747
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The document body and heuristics confirm the intent is to lure users to these malicious sites. While no scripts were extracted, the PDF structure itself facilitates the redirection, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/best-roblox-hack-website-game-hack In PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/how-to-hack-mad-city-roblox-menu_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-tix-dominus-roblox_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-games-twitter-roblox_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/get-free-obc-in-roblox_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/robux-free-co_GM431946152.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/wurst-client-18-9_GM479516143.pdfIn PDF document text
    • http://assets.dpt.go.th/dptda/ckfinder/userfiles/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F8 22268 bytes
SHA-256: d7f7d5099d611399fcf7eac494cf9e0061311f14ebc5a6762f2ba87acd2bed33
font_01_sfnt_off0000629b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629B 19076 bytes
SHA-256: 79efbe9746c7b8b1d7f6488b12ef53d9dad428de50f1447bac8363e25e949fdb

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