Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdfd08042a87c1fc…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 16:40:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: df7fd58ef6ea236678fef2a9256a9a9d SHA-1: 1dbb66fc89c6a4c977803b59ce5c1c86164f80eb SHA-256: bdfd08042a87c1fc7ed41955de3a5c49bf5884c81dc0f4fe57b8e2798b4d84ab
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body reinforces this by displaying the same lure text and URLs. This indicates a phishing or scam attempt designed to trick users into visiting a malicious site.

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.tw/app/479516143/free-minecraft-accounts-reddit-game-hack In PDF document text
    • http://library.atim.ac.id/repository/roblox-skull-kid-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/tbc-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/admin-ofc-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-enter-pin-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-outfit-ideas-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-free-money-on-adopt-me-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-spin-links-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-a-free-dominus-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-lua-script_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-old-roblox-account-new_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/cheat-codes-for-bubble-gum-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-free-robux-no-copy-and-paste_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-do-you-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-roam-roblox-best_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/rbxcity-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-roblox-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/quiero-ser-hacker-en-roblox_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
font_00_sfnt_off00002fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC7 22652 bytes
SHA-256: ea5983ee18fdff0c6dfb9b703084db443550c6b5dc9e189c8848982c877a3282
font_01_sfnt_off0000627b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627B 18312 bytes
SHA-256: 50d1f005f3bc6c9a70cadb60561a4ebd3838a82c7b608e060fe80223842f44a3

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