Malicious PDF — malware analysis report

Static analysis result for SHA-256 850e1fa77d810d07…

MALICIOUS

PDF

33.7 KB Created: 2021-06-18 17:46:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 74c2f0089a0de1d7e4ff0651bd1156e2 SHA-1: e0bddf5623745dbf2fe71a17d3155971f634acac SHA-256: 850e1fa77d810d0746045deca5080cef7dc72b45205f1de6c49f9cd7c402f2f4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to malicious redirectors and sites offering game hacks and cheats, indicating a phishing or scam attempt. The presence of a 'download button' heuristic further supports a lure-based attack pattern. While no scripts were explicitly extracted, the document's structure and embedded URLs strongly suggest it's designed to lead the user to download further malicious content or visit compromised sites.

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/how-to-get-catalog-items-for-free-in-roblox-game-hack In PDF document text
    • http://truebibleteaching.com/images/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://truebibleteaching.com/images/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://truebibleteaching.com/images/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://truebibleteaching.com/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/coin-master-cheat-apk-free-download_GM406889139.pdfIn PDF document text
    • http://truebibleteaching.com/images/microsoft-robux_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://truebibleteaching.com/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/roblox-i-was-hacked_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/how-to-get-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://truebibleteaching.com/images/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://truebibleteaching.com/images/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://truebibleteaching.com/images/free-robux-genderator-roblxo-2021-no-downlaod-working_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/roblox-free-lvl-7-script-executor-2021-august-2021_GM431946152.pdfIn PDF document text
    • http://truebibleteaching.com/images/tiktok-free-view-your-liked-videos_GM835599320.pdfIn PDF document text
    • http://truebibleteaching.com/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://truebibleteaching.com/images/how-to-get-minecraft-for-free-on-xbox_GM479516143.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_off00002f10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F10 21740 bytes
SHA-256: 2e4ed56f9a0d9d517f1278adb97e3e14760feaa9596f93eeacec8c8e2ba63ce9
font_01_sfnt_off00005ee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE5 18992 bytes
SHA-256: 99895b868441dffa60bafcdea2b534d773d7cd04d73712b28ab7836a42ffb5c8

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