Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3d68d737ba9f917…

MALICIOUS

PDF

42.0 KB Created: 2021-05-10 17:49:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c273618cb5fd1ba506e8ae26db3a946c SHA-1: aaabb75cd222275624f98c70d7e84d183badc2dc SHA-256: f3d68d737ba9f9174a638e1f6d9b15e48b2b9f61cff983428ab36334c8143102
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, including one that impersonates a 'free generator / game hack' lure. The document body also contains numerous URLs pointing to sites offering game-related cheats and currency, likely intended to trick users into clicking through to malicious content. No scripts were extracted, but the presence of multiple malicious links indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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.xyz/app/431946152/how-to-change-roblox-username-for-free-game-hack In PDF document text
    • http://jandimotors.co.uk/images/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://jandimotors.co.uk/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://jandimotors.co.uk/images/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://jandimotors.co.uk/images/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://jandimotors.co.uk/images/free-coins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://jandimotors.co.uk/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://jandimotors.co.uk/images/legit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://jandimotors.co.uk/images/roblox-rape-hack_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_003_off000045a1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45A1 25048 bytes
SHA-256: 4aabd0423f87424b3613a65cd1d7e275968ed3dd69f908914470d78e48fc8110
font_01_sfnt_off00007f26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F26 19240 bytes
SHA-256: 61006e5f3dddd6435ab0a2755610421e2f864d25a13f3f522a83b1d149be9d74

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