Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1edc150931309dd…

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 05:13:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 03311ba8052f52d17e63d2ab3122e6de SHA-1: 6a903298e017a1b2155e4ac8302a4a92c9f31458 SHA-256: d1edc150931309ddf891273a5df67a98573c220cc3c80c5ed4f7f0b0cbf0e1d3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary lure is a link to 'free cheat codes for Coin Master game hack'. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or redirection campaign designed to lead users to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/406889139/free-cheat-codes-for-coin-master-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-free-spins-deutsch-download-ios-link_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-roblox-website_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://coinmasterspinandcoin.comIn 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
stream_004_off00004ed2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ED2 29848 bytes
SHA-256: 9d0753eaf5378b39149b1c96ba8953965ee9644066abdf379fba5009cec4ccab
font_01_sfnt_off0000909a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x909A 18052 bytes
SHA-256: 9f7c336b46bb1f5c4c699c2d489464edf46c0e280b3a3f852c1bdf3bee9ca033

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