Malicious PDF — malware analysis report

Static analysis result for SHA-256 488c2a3ff4d67d21…

MALICIOUS

PDF

41.3 KB Created: 2021-04-27 11:34:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 2869a3820aebf3fcc88303f80284042b SHA-1: a69e86ae2ef7be601a4866883ff403d82ef78b0d SHA-256: 488c2a3ff4d67d21cc9c2109e0cbc06587b24b3b089b7de46a83d4c1003ff21b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free hacks' for Roblox. The document body includes a prominent call to action to access a Roblox generator via a provided URL. This indicates a phishing or scam attempt designed to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/free-ez-hacks-for-roblox-robucks-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-money-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-sell-roblox-shirts-for-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblox-stuff-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-tab-font-free-download.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-printable-roblox-birthday-card.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-content-deleted-pants-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-sights.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-inquiditormaster.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-face-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-item-generator.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_off000042bb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42BB 26132 bytes
SHA-256: aba654d8fe8dc7e534c201f659dd1c3f32c8fc54980cbafe1d2cbaa42ba08c8f
font_01_sfnt_off00007ec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC8 18568 bytes
SHA-256: 75e5f206bf1134fd780a59b751700223bcf8829c75f717e2738d793116558c0a

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