Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3a96e47bedf7363…

MALICIOUS

PDF

33.8 KB Created: 2021-06-28 13:53:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3901738387272fd4dec3233fc991fe8d SHA-1: 564300d51c4b2aa69eeae2e962e2783f18f9edef SHA-256: c3a96e47bedf73636cc8234ec68275ae7c9e1bf94f74ee6c957cb96fd5da5d8b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, including a known malicious redirector, under the guise of providing game hacks and cheats. The document body text and embedded URLs strongly suggest a lure for users seeking in-game advantages, which is a common tactic for phishing or malware distribution. No scripts were extracted, but the primary attack vector appears to be directing users to malicious infrastructure via embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/bleach-primera-hack-roblox-game-hack In PDF document text
    • http://repository.unla.ac.id/repository/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-shinobi-life-hack-2021_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-sites-like-rocash_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/robux-miner_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/minecraft-svg-images-free_GM479516143.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-credits-galaxy-roblox_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-real-no-verification_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-2021-legit-feb-unpatched_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/can-you-change-your-username-on-roblox-back-for-free_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-booga-booga-mojo-hack_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/unpatchable-robux-hack-code-generator_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-free-vip-server-jailbreak_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/hack-para-tener-robux-infinitos_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/earn-free-robux-on-roblox_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
font_00_sfnt_off00002d59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D59 22184 bytes
SHA-256: 9ca8ae61daa2720f42b6df7289037b990d19b3db19d511de44a0515cc432ec8c
font_01_sfnt_off00005e73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E73 19356 bytes
SHA-256: fc6deb8a06b866f39b2b9c1f011a98601362493afe0217c5bddbb5d8e522b6d8

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