Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d6abfdc92baf928…

MALICIOUS

PDF

35.5 KB Created: 2021-06-28 19:26:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6732aea914d5cdac55f8249d96aaca94 SHA-1: e1b8168dd6451d12a708a6ee0bd678635cb3503f SHA-256: 3d6abfdc92baf928399c4bed7cecb8302b0ce66e34b306440616cc96f4381845
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn serves further malicious PDFs. The ML classifier strongly indicates maliciousness, and the document body confirms the deceptive content.

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/how-to-hack-minecraft-for-infinite-robux-game-hack In PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-free-gamepasses-on-roblox-2021-pastebim_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/roblox-top_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-robux-no-survey-android_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/hack-dungeon-quest-roblox_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/download-cheat-roblox-android_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://bentoking.co.uk/media/storage/editor/files/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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
stream_002_off0000314e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x314E 22956 bytes
SHA-256: c46c1d27dab243de89586c8dfa8dc60c1f941348916222f6062758a2c959507d
font_01_sfnt_off000064ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AD 19468 bytes
SHA-256: 8cb794b96906e4dda0b17fe101bafe251d85ee635fae0b3a7649b9a38be934e0

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