Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdb481ed465c26bc…

MALICIOUS

PDF

24.4 KB Created: 2021-06-25 23:10:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d7b57b11f55b7be209935974aedca7db SHA-1: 915e3cc569a306f57bfc08f8f8474b8ec9cd1476 SHA-256: bdb481ed465c26bc8b8d8db11c81d4d63eaba8e66970d85ba1aeda9739b55318
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and currency generators. The document body and embedded URLs indicate a lure for users to click on these links, likely leading to further malware downloads or phishing sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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/robux-redeem-code-hack-game-hack In PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-hack-deutsch-auf-pc-robux_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/hackerlol-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/pubg-uc-kr_GM1330123889.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/hacks-para-ganar-robux-gratis-rapido_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/penguinson-roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/free-costume-in-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-free-spins-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/promo-codes-for-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/roblox-hack-legend-speed_GM431946152.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://katalog.iain-padangsidimpuan.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0B 22112 bytes
SHA-256: 21c08ce887487ec00699829cb0fc62b85ce1aa4582698d3a7375165cbac6d0ce

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