Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee67b86abd206cb…

MALICIOUS

PDF

33.1 KB Created: 2021-06-19 05:51:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ccbb3f938b74179b7f96322c96596f1a SHA-1: 1b1ceb9d435e03333ed61134ce2ca55a13ede918 SHA-256: fee67b86abd206cb952bbb17e6457dde49c83225a731b19011c9a50fa5dfe01f
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 0.9824

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 http://netcdn.co/app/431946152/roblox-hacks-for-mad-city-game-hack PDF link annotation
    • https://opac.heritagejkt.org//repository/freecoins_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-best-places-to-hack_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/pokemon-go-free-coins-hack_GM1094591345.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-re_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/rbxvault-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/spin-and-coin_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-robux-scams_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/skidmax-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-apk-hack-download-robux_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_off00002a93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A93 21944 bytes
SHA-256: 385611dd47fe185334db9a0a53b62a27c3be4da5a97a8fb2a2d81361d94c859f
font_01_sfnt_off00005b35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B35 19596 bytes
SHA-256: acb63b84a86759be1bde607ddd54b53b2c513865c531269ee8e75a1066c794bb

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