Malicious PDF — malware analysis report

Static analysis result for SHA-256 29d577cb7c9815e4…

MALICIOUS

PDF

35.3 KB Created: 2021-07-02 07:11:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e44f9a71be59a01eb0a858dcd65bf40 SHA-1: db927890bbaa8db4f75bc2562df80ddb4b885e75 SHA-256: 29d577cb7c9815e4b37d096c0b834240b1595bd3f42a44265701fa96ea9fb548
160 Risk Score

Malware Insights

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

The PDF document contains a lure related to game hacks and free currency, directing users to a known malicious redirector. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and embedded links indicate a phishing or scam attempt.

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-hacked-pour-avoir-des-robux-game-hack In PDF document text
    • https://opac.umrah.ac.id/repository/hack-programs-for-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-dump-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/where-do-i-put-roblox-hack-scripts_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-doi-hack-in-roblox-games-to-get-gold_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-character-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/software-for-cheat-engine-66-to-not-make-roblox-crash_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/fly-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-premium-generator_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-steal-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-hack-admin-on-roblox-games_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/50-000-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-ninja-legends-groups-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-downgrade-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-gift-hack_GM406889139.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_off0000325f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x325F 22164 bytes
SHA-256: 17651d7ab3fc4f06c1b74664157690eeb8b4245d964cf15f73de9d938e77aa29
font_01_sfnt_off00006365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6365 19528 bytes
SHA-256: 6102fa332e6d6e1e9b71f75524eb883dbabab0687b7eb326cfb13a5c56c6cde0

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