Malicious PDF — malware analysis report

Static analysis result for SHA-256 298da67bc80357fe…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 22:24:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 32cd801c380852c3a9765d5d63d9a26f SHA-1: 6f8008a62d9204484702c0e56e3497130a4eb072 SHA-256: 298da67bc80357fe54827476a38995cc917dd13269b3ef5700e34d65419f0dea
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to known malicious infrastructure, specifically disguised as a 'free generator / game hack' for Roblox. The document body and embedded URLs reinforce this lure, aiming to trick users into visiting the malicious site. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a phishing or redirection attempt.

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.tw/app/431946152/roblox-skins-boy-free-game-hack In PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-lvl-7-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/best-pklayed-games-free-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/robux-hack-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-accounts-youtube_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-bc-free-account_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-westover-islands-cheat_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-meep-city-game-free-download_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/robux-online_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-hack-generator-no-app-download_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/roblox-owo-whats-this-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib-pps.unja.ac.id/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.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_off00002ee3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2EE3 22652 bytes
SHA-256: eafb5e8701fa28761001903788cbabdc47686a46b6176ec8af37c94eda0adcfd
font_01_sfnt_off0000615c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615C 19120 bytes
SHA-256: 87f11882065a11dd5229d54294e4ab189cd77cd0e946166ec6c2e7e4f486ae8f

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