Malicious PDF — malware analysis report

Static analysis result for SHA-256 6235d2fe2d407430…

MALICIOUS

PDF

41.6 KB Created: 2021-06-13 21:14:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a3d164ddfc3eb08064227aa6354cc9ca SHA-1: 74fb0778d8eb29ca859bb98624b80c824276ff87 SHA-256: 6235d2fe2d4074301b1aa1577360a003ffa395cf64e328e9d1d0d47c676314bc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free generator / game hack' to entice users to click on links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts multiple other malicious PDF files. The document body, though partially corrupted, contains references to 'Roblox Project Overrising Hack' and the malicious URL, reinforcing the lure. No scripts were extracted, but the presence of multiple malicious links and the redirector infrastructure strongly indicates a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-project-overrising-hack-game-hack In PDF document text
    • http://www.marambio.com.ar/images/get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-to-get-free-robux-surveys_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-to-get-free-robux-on-roblox-mobile-2021_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/roblox-best-exploit-cheat-ever-2021_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-script-2021_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/robux-hack_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://www.marambio.com.ar/images/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.marambio.com.ar/images/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.marambio.com.ar/images/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/hack-tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://www.marambio.com.ar/images/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.marambio.com.ar/images/coin-master-spins_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_off0000465d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x465D 24108 bytes
SHA-256: 85d55eb17c3843f4d1b4cff1cec572bb03155405b9cc6466e65f520569cbb756
font_01_sfnt_off00007d7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7C 19152 bytes
SHA-256: e821fc19c68d9076a5597fd23d4beb66161463ded952dc1c124566dbc1c44c28

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