Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8b42c120ffb9d66…

MALICIOUS

PDF

35.4 KB Created: 2021-06-29 07:26:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bf79628abef25a8ff9bd60ba69a5ae23 SHA-1: 46d56eb84f668a8c703d0f8f2a63de1e7eaefcb9 SHA-256: f8b42c120ffb9d66b698f34d015209b8c148e7513fda9a77a951087e06f0a2a6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a game hack generator, which is a common social engineering tactic to trick users into visiting malicious websites. The embedded link directs to known malicious redirector infrastructure, indicating a phishing or malware distribution attempt. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a phishing attack.

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/best-hack-for-dragon-ball-z-rage-on-roblox-game-hack In PDF document text
    • http://pustaka.fk.unand.ac.id/repository/btools-roblox-hack-2021-working_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/hacks-bacon-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/como-hackear-robux-en-meepcity_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/good-games-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-parkour-points-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-hack-on-roblox-phone_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-roblox-accounts-youtube_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-vehicle-simulator-money-hack-deutsch-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-get-free-robux-no-hack-or-download_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-money-codes-for-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-my-account-was-hacked_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/make-skins-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-play-roblox-games-that-cost-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-hack-build-you-one-boat_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/obc-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/its-free-roblox-id_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-can-i-get-free-robux-without-doing-anything_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_off0000312f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x312F 22892 bytes
SHA-256: fc1fbdf5f752d70c31154e148603b3245342652eb03b92105a43915600d7c63b
font_01_sfnt_off000064c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C5 19188 bytes
SHA-256: f65d452063cc62a975b1e44331166035f2be717e5162941aaebb5c446b46abd6

Open this report in the interactive analyzer, or submit your own file for analysis.