Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a6241e5cd808c8c…

MALICIOUS

PDF

34.1 KB Created: 2021-06-28 02:49:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 751a175f62c97349423faf2f438aeb57 SHA-1: 208209b106b287426569b8f7210ead12edafed4f SHA-256: 1a6241e5cd808c8c18a8f58f2a8593340c08688139824f15e7b50753664beaa5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, specifically mentioning Roblox and Coin Master. It contains numerous embedded URLs that lead to redirectors and potentially malicious content, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body and heuristics suggest the primary goal is to redirect users to external sites, likely for further exploitation or malware delivery.

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/dex-ex-roblox-hack-game-hack In PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/no-human-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/robux-today_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/foro-hackers-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-more-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/www-roblox-com-cheat-in_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-promo-codes-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-spins-free-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00002e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E3F 22548 bytes
SHA-256: d4dcd8e3fee5834ecd6ecc9d825ff199ea3d0eb250b01797ea4c2a8cef2d8340
font_01_sfnt_off000060bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BB 18824 bytes
SHA-256: 6f172c725a55553bee9e425008b7bf0199f42b7d98b4f60e6a021b10b289d0c8

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