Malicious PDF — malware analysis report

Static analysis result for SHA-256 848b0d6762914ce5…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 13:36:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c3480064e4abf7097763dda7f0106397 SHA-1: ea28552a7346ba5f8269ecf90efd312302c9db7c SHA-256: 848b0d6762914ce512fcc67f00a7cb192fcdc28e0ba0267a3b746a320c6fe2b6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. The document body and embedded URLs strongly suggest a phishing or scam attempt related to popular online games.

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.tw/app/431946152/free-robux-without-human-verification-game-hack In PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/download-hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/pokemon-go-free-mask_GM1094591345.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-get-free-robux-nicsterv_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-make-your-own-game-with-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/roblox-robux-hack-pc-2021_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/roblox-cheats-how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/pubg-uc-free-in-pakistan_GM1330123889.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/minecraft-items_GM479516143.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://asiavisiontreks.com/userfiles/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA8 21792 bytes
SHA-256: a0bf4c6ca95872d56b899561fa7f28dc438b2d8ce04e661fd700d88bb9931f44
font_01_sfnt_off00005eaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAA 19700 bytes
SHA-256: 8b14ee22fcfa25f62777b70428c8c13e08516b960c8f7fddc92c23ad02cefb37

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