Malicious PDF — malware analysis report

Static analysis result for SHA-256 122902894b5e8684…

MALICIOUS

PDF

34.1 KB Created: 2021-07-06 13:28:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 04c01075bf012cd3016ed0567bd33f44 SHA-1: 9c7dc53f45b57bf6b0d0e58467da312757fd6805 SHA-256: 122902894b5e868499c905a09a6441886e1dfcc0fd7cfd92836b1f5a5286c289
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous links to external websites, many of which are structured as SEO link farms for game hacks and free items. The document body and heuristics indicate a lure to click these links, likely to redirect users to phishing sites or download malicious content. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/431946152/free-roblox-adopt-me-accounts-game-hack PDF link annotation
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-get-free-robux-admin-code_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-generator-no-robot-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-apk-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-earn-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-get-free-robux-clickbait_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/descargar-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-cookie-stealer-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-apocalypse-rising-cheat-codes_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_off00002ddf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2DDF 22088 bytes
SHA-256: 90106ae97dfbd9f07072ea286035e6e0b86ab495ce83a25c486fe8ac01b4158a
font_01_sfnt_off00005ede.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDE 19440 bytes
SHA-256: 88194e20aa1d794cbfbc6ec60bdf20d6817b6f04f409d3f051b45d150e534ec5

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