Malicious PDF — malware analysis report

Static analysis result for SHA-256 455895f0d5f2a7ea…

MALICIOUS

PDF

42.2 KB Created: 2021-04-29 21:37:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9dae62b8e84f54ed6453351a1c4bba16 SHA-1: 753d8d132f2462958e7f320c4c33dfabb7abaeff SHA-256: 455895f0d5f2a7eaca8d96ec3b958e75ea7ecf80c685168918c26b5b3f42762e
200 Risk Score

Malware Insights

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

This PDF document employs a lure related to Roblox game hacks and PayPal impersonation to trick users into clicking malicious links. The primary link directs to a known malicious redirector, which likely serves as a gateway to further malicious content or exploits. The document's structure and embedded URLs suggest an attempt to exploit user interest in gaming and financial services for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/quelqun-me-hack-sur-roblox-game-hack.
  • 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 https://netcdn.xyz/app/431946152/quelqun-me-hack-sur-roblox-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/cheat-tower-battle-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hack-robux-gratis-2021-funcionando.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/earn-roblox-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/hacking-engine-for-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-noclip-hack-download-ipad.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-free-face-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hack-bee-swarm-simulator-2021-download.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/adopt-me-roblox-play-for-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-one-piece-ocean-voyage-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-hack-2021-pc-download.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
stream_003_off00004155.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4155 28376 bytes
SHA-256: abddd8ead4b378b613e4688b4f2281d4adbdb57dd6006192e7b766a960ef5c63
font_01_sfnt_off0000817c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x817C 18848 bytes
SHA-256: 067e430641ed69df228f27f0d126369e9d9be96f4980dcb127a41ff9770e4253

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