Malicious PDF — malware analysis report

Static analysis result for SHA-256 f003e55b0dabf1a9…

MALICIOUS

PDF

32.1 KB Created: 2021-07-23 14:32:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 82b2cb906eb955d5d764a859753f7bac SHA-1: a05c3cdc361a8bd40b39d5c167edaa023ea248fd SHA-256: f003e55b0dabf1a91e8e875be52db5cbc96f95dbff1368840ffc76803e8565bb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a prominent call-to-action related to "Free Robux Codes Generator", indicating a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of multiple suspicious URLs suggests an attempt to redirect users to potentially malicious sites for credential harvesting or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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.tw/app/431946152/free-robux-codes-generator-game-hack In PDF document text
    • https://magistrinfo.ru/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://magistrinfo.ru/images/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://magistrinfo.ru/images/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://magistrinfo.ru/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://magistrinfo.ru/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://magistrinfo.ru/images/coin-master-free-daily-spins-link_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_off00002728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2728 22820 bytes
SHA-256: dc506caa4eccb5d41a642a4750f1a21f23e70715411947a5fc7be8748200bb5d
font_01_sfnt_off000059e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E8 18704 bytes
SHA-256: 7cedffd4078b81daa363670fa887c3ed75a5be4e37f91b6b74bdf33c285228bf

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