Malicious PDF — malware analysis report

Static analysis result for SHA-256 568008a0b29e3b36…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 09:41:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 195780344c44b5fc5069468b39ff5133 SHA-1: 0b83a45a1759184622f30df76463c48c88468d7d SHA-256: 568008a0b29e3b36a8d9e5ec540103dfcced9513a04ae9ce4073c6406d5f2705
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a high-confidence ML classifier flagged it as malicious. The primary URL, http://netcdn.tw/app/406889139/free-coins-coin-master-link-game-hack, is associated with a lure for game hacks, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links indicate a likely attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.tw/app/406889139/free-coins-coin-master-link-game-hack PDF link annotation
    • https://pustaka.staiyastispadang.ac.id/repository/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/free-robux-generator-no-human-verification-no-survey-or-offers_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/free-robux-tips-and-tricks_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/how-to-hack-apocalypse-rising-roblox-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/how-to-hack-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/free-tokens-roblox-assassin_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/how-do-you-get-free-rs-on-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/roblox-hack-gui-pastebin_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/roblox-its-free-id_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/free-robux-and-tix_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/proxo-roblox-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/let-me-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/mm2-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/roblox-robux-hack-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/roblox-miscreated-cheats_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/is-roblox-free-on-xbox_GM431946152.pdfIn PDF document text
    • https://pustaka.staiyastispadang.ac.id/repository/drawings-in-roblox-of-free-draw-2-apha_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
stream_002_off00002ff6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FF6 23204 bytes
SHA-256: 2301118cb013b539517dd0cba869ad76da39dc4a7012911fd372a9c47f2c3d17
font_01_sfnt_off00006423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6423 18168 bytes
SHA-256: b0fd03f2280421e1c8ba538a35ec3a9afcfe64ddb22ef6ef66156561f264a38b

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