Malicious PDF — malware analysis report

Static analysis result for SHA-256 af258cf1a7a93588…

MALICIOUS

PDF

42.7 KB Created: 2021-05-19 21:07:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 341171edb8746822a112656b82056973 SHA-1: eef039c315b3eca7da5cf117fedc84460d30dba1 SHA-256: af258cf1a7a93588d77cfe59fac50de199eb2f21ecefb7496cdcc4366d282731
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'game hacks' and 'free generators'. The document body and extracted URLs strongly suggest a phishing or scam attempt, likely to lead users to further malicious content or downloads. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/431946152/how-to-hack-roblox-2021-game-hack In PDF document text
    • http://iacovoulaw.com/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://iacovoulaw.com/images/coin-master-strategy_GM406889139.pdfIn PDF document text
    • http://iacovoulaw.com/images/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • http://iacovoulaw.com/images/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://iacovoulaw.com/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://iacovoulaw.com/images/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://iacovoulaw.com/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://iacovoulaw.com/images/roblox-ftw_GM431946152.pdfIn PDF document text
    • http://iacovoulaw.com/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://iacovoulaw.com/images/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://iacovoulaw.com/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://iacovoulaw.com/images/minecraft-116-free_GM479516143.pdfIn PDF document text
    • http://iacovoulaw.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://iacovoulaw.com/images/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://iacovoulaw.com/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://iacovoulaw.com/images/hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://iacovoulaw.com/images/wurst-minecraft_GM479516143.pdfIn PDF document text
    • http://iacovoulaw.com/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://iacovoulaw.com/images/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://iacovoulaw.com/images/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.roblox.coIn 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_off000048ac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48AC 25164 bytes
SHA-256: cbafe710cef72c851bb10e19678cfc3985caff26b47fc8780b689e6f00e43498
font_01_sfnt_off000082c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C1 18748 bytes
SHA-256: 82830e686af2a9787477f8716b243dfdc4e826425849e85a18f820c98dc205f5

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