Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5de29a186f78ec4…

MALICIOUS

PDF

34.7 KB Created: 2021-06-28 18:47:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 11d52fb4839369cb0869197507fbad83 SHA-1: 22bc1f2d4018cdb2f8cacb9d357a36489a6e532a SHA-256: a5de29a186f78ec4e2a4a2a1d39160c56e2cbe8fd8b01270e9100696729d44d7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that redirect to a known malicious infrastructure. The document body and heuristics indicate a lure for game hacks and gift cards, designed to trick users into visiting the malicious link. The primary malicious URL identified is http://netcdn.co/app/431946152/gift-card-roblox-free-2021-game-hack, which is likely used to deliver a second-stage payload or phish for credentials.

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/gift-card-roblox-free-2021-game-hack In PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/how-to-make-roblox-dll-hack_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/roblox-electric-state-darkrp-hack_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/robux-hack-online_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/pubg-uc-exchange_GM1330123889.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/fashion-frenzy-games-free-online-roblox_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/get-free-account-roblox_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/how-to-get-free-robux-august-2021_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/roblox-free-bundles_GM431946152.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ksmt.edu.np/assets/ckfinder/userfiles/files/give-me-free-robux-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
font_00_sfnt_off0000307b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307B 22056 bytes
SHA-256: 3d2c890f49d057e2834d9b5a285d89b13cbc55e9075465351370c07ce03bd11d
font_01_sfnt_off0000616c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616C 19452 bytes
SHA-256: 75e47349fa778616358f76a182329315119d6ffe602a7b5a8814dab786d82067

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