Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6462c8a8d6c96f5…

MALICIOUS

PDF

33.9 KB Created: 2021-06-20 02:53:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a8f677ba2e46aaab6d966ab8cb830497 SHA-1: 3b0c28e3c59d62ff3e9ac4ab39e4615eb9792fb3 SHA-256: a6462c8a8d6c96f5a2cece5bb8b3d3982a6f7a484e822b3510c208825f4e005d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded links that redirect to a known malicious domain, masquerading as a generator for game items like Roblox t-shirts. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure further supports a malicious intent. The primary attack vector appears to be luring users to a potentially harmful website via a deceptive document.

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/roblox-t-shirt-free-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-2021-pc_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-cat-ears-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-tiktok-likes-and-views_GM835599320.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/cheat-mining-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-shield_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/wurst-18-9_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-progamers_GM406889139.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_off00002d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D19 22540 bytes
SHA-256: fb4c1e7c056056bb12c018f2a45d103448a14ba77566bda4364fc339a3e7303b
font_01_sfnt_off00005fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA2 19040 bytes
SHA-256: 83c55651de22b82eb0e9cdd22ec7f0f9dcbcccf384ff8c2b36078679603d7ff3

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