Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6822edee0166cdd…

MALICIOUS

PDF

33.2 KB Created: 2021-06-26 18:16:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bd6ae9bc09157c70b7375225a874e5ff SHA-1: 7479f96b6a17dc1b03a28e5831066a1909904845 SHA-256: d6822edee0166cddb7c1311d48beae25b4cb35e30890dfe833d0f29cf94022d6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free game hacks and generators. The document body and embedded URLs suggest a lure for users interested in obtaining in-game currency or cheats, which is a common social engineering tactic. The ML classifier also strongly indicated maliciousness.

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/free-logo-roblox-game-hack In PDF document text
    • https://perpus.uwhs.ac.id/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/minecraft-com-free_GM479516143.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/i-was-hacked-in-roblox_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/00-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/how-to-make-any-item-on-roblox-free_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/como-tener-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/free-roblox-outfit-codes_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • https://perpus.uwhs.ac.id/repository/how-to-hack-roblox-booga-booga-on-mac_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_off00002eec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EEC 21456 bytes
SHA-256: 759375170d1538857db394dd3f0ad110adcbb3de1939b4395e3a92e6d2a7a588
font_01_sfnt_off00005dee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEE 18652 bytes
SHA-256: fc9cf86ea3eded7719599d0528d59284690a9405105453a14001ce2cc54c6ae8

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