Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4353ce197ec8b3d…

MALICIOUS

PDF

35.0 KB Created: 2021-06-30 05:29:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cf4053c2757c5bad8922d48e5c769e78 SHA-1: 3d4a629be949a5fe0cc56056dc504f92ab795a79 SHA-256: c4353ce197ec8b3d3818cc8ff160288a0c28d4a097e7728a1626bc9438314076
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for game cheats and free in-game currency, directing users to a known malicious redirector. The primary link, http://netcdn.co/app/431946152/guess-the-emoji-roblox-cheats-game-hack, is associated with malicious redirector infrastructure. The document's structure and embedded links suggest it is part of a phishing or scam campaign designed to trick users into visiting potentially harmful sites.

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/guess-the-emoji-roblox-cheats-game-hack In PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-promo-codes-robux-free_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-pink-hair-roblox_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/roblox-sued_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-spins-and-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-robux-no-buying-armanda_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/mcpe-116_GM479516143.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/anime-tycoon-hack-roblox_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/roblox-pokemon-brick-bronze-hack_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/rbx-free_GM431946152.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_off00003207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3207 21960 bytes
SHA-256: 6ac1f1a80eb76169b2f196c6777ff4d9e0ea6f6e4617f757c62ceb005a8649cc
font_01_sfnt_off000062c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C8 19464 bytes
SHA-256: 6ef49c80bfbe390a3ea30b86d5d8023d4d49de51d2ec32983f4b76add995fa2e

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