Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7b3334fc86da7eb…

MALICIOUS

PDF

35.6 KB Created: 2021-06-28 22:31:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5386c5dd6651bf2257b628c01c24ae71 SHA-1: 5623a658827cf8c8cc2a06dbb32c8d66165764bd SHA-256: d7b3334fc86da7ebdf74ce209a6cbab248a6d48da90816e04409273ec78f7f46
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' for popular titles like Roblox. The document body and heuristic firings indicate a lure designed to trick users into clicking these links, which likely lead to the download of malware or unwanted software. The primary attack pattern involves social engineering through deceptive content and malicious URLs.

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/roblox-speed-hack-download-2021-game-hack In PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/hack-para-robux-gratis-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/ich-bin-am-hacken-roblox-name-danny-jesden_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-facs-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-noclip-hack-jailbreak-outwitt_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/robux-hack-2021-december_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-hack-roblox-accounts-with-edit-this-cookie-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-roblox-clothes-promo-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-a-free-lamborghini-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/best-way-to-make-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/hack-for-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/hacks-bandit-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/robux-codes-free-for-bots_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/natevang-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-super-power-training-simulator-free-vip-server_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/robux-hack-no-survey-2021_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
stream_002_off00002f67.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F67 23088 bytes
SHA-256: a9057a82ccd0ca3d4fa3eae7f6d74cfa83dda03894ca2b749531a188a1f724b8
font_01_sfnt_off000063ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AE 19740 bytes
SHA-256: 302f2ca984aedac19325dfa86015e5d735b7ccc46c7165862a87e8058ee24d27

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