Malicious PDF — malware analysis report

Static analysis result for SHA-256 8369d0bd650cb14c…

MALICIOUS

PDF

37.2 KB Created: 2021-05-21 06:07:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1b96f3ec49a8c54dab58179249110f8c SHA-1: 58447fdd13f22850ce50e57b4b55c7e2265e8029 SHA-256: 8369d0bd650cb14c139e26661a511156cf23f0941ef9a225325f229a86ae066d
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors and lures users with promises of free Robux, a common phishing tactic. The ML classifier also flagged this PDF as malicious. The document body and embedded URLs strongly suggest a phishing attempt to redirect users to potentially malicious sites for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-2021-game-hack In PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • https://www.franchiseinnovations.org/broker-site/files/files/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3332 26988 bytes
SHA-256: 51b7cc859b0162ac84d8fff6cbaffeb54705b3d72e356ae46c20b6fc467b2900
font_01_sfnt_off00006eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAB 18684 bytes
SHA-256: 662354714a7c4aa127b8bd681013e9d5d113fbfc5a2f5afb2d34764175bb04a5

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