Malicious PDF — malware analysis report

Static analysis result for SHA-256 86680def95877df0…

MALICIOUS

PDF

41.0 KB Created: 2021-05-16 00:15:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3ada5129b86dfd3b7704aedf085d69b5 SHA-1: 874104a16ddd06a08c250bd02e52554aab7f5e6c SHA-256: 86680def95877df054d681516fc98db1d55eec9d88416edb085eaa37ccf85bfb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to a lure for game hacks and generators. The ML classifier also strongly flagged this PDF as malicious. The embedded URL leads to known malicious infrastructure, suggesting a phishing or scam attempt to redirect users to potentially harmful content.

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/ww-robux-game-hack In PDF document text
    • https://www.alarqam.ae/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-ios-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-cards_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-earn-free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-robux-no-verification_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_off0000447a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x447A 24816 bytes
SHA-256: 8496a998274edbe91e4e6b9fab1e3df8b63cd6902cb98efcc3db2ee8f7f4c7a4
font_01_sfnt_off00007db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB1 18212 bytes
SHA-256: bcccb1e001e2f5e7ef72a5433eb4dc11bdbc574927e5f5e748e53d7576d93cee

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