Malicious PDF — malware analysis report

Static analysis result for SHA-256 67bac4f57b592445…

MALICIOUS

PDF

43.3 KB Created: 2021-06-03 13:41:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fc11de9867508b35fc5797854b8b46bf SHA-1: 10515fe5a6b0f6111acea534cad8400767c77df2 SHA-256: 67bac4f57b592445abc677dc4ffd88f2405e7afe6245646884a31a707979d216
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/coin-master-hack-pro-gamers-game-hack PDF link annotation
    • http://elibrary.perludem.org//repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/open-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/tiktok-free-view-like-video_GM835599320.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org/repository/freerobux-hack-us_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
    • http://elibrary.perludem.org//repository/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elibrary.perludem.org/repository/coin-master-free-spins-link-download_GM406889139.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
stream_004_off00004f2b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F2B 24912 bytes
SHA-256: 50033f3d55820b963644de7b5f46e7a2c05e0f795fba1b90e44de02d2242e49e
font_01_sfnt_off0000871d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x871D 18132 bytes
SHA-256: 7c3ba000fcc9e82367a9cf09e7428e48624a936725f215f3086fe1b405a0b7f2

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