Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e84be055cb76de8…

MALICIOUS

PDF

25.8 KB Created: 2021-07-06 04:19:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5a47c29bd512ae5abf4735ff0bccb7b7 SHA-1: 0e9fac449da368bd6c15891b10a1c8c3d01f77f9 SHA-256: 9e84be055cb76de8a33696b040bd4fbd50c288cbe567b26b1e36509cc66e4091
152 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 generators' and 'game hacks' for popular games. The primary lure URL is http://netcdn.tw/app/479516143/minecraft-java-edition-code-free-game-hack. This behavior is consistent with phishing or scam campaigns designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded links are the primary vector for this attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 3

  • 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.
  • 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/479516143/minecraft-java-edition-code-free-game-hack In PDF document text
    • http://www.arichuna.com/images/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/robux-hack-2021-new_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/robux-hack-tool-no-survey_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/hack-roblox-game-ability_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-to-get-a-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/https-wwwrobloxcom-catalog-keyword-freecategory-1direction-2_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-to-get-free-ranks-in-a-roblox-group_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/coin-master-freebies_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/5-easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/pain-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/best-site-for-free-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E33 21660 bytes
SHA-256: 4d81894cf7b78ad24efb72451133af822c97cdc1be06b918bf82bcede1131f14

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