Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9141d0c29318e01…

MALICIOUS

PDF

45.4 KB Created: 2021-06-03 05:09:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 87eb73441f66bcbd2ba1f791692b6aca SHA-1: 6a5823360e9f8eb5fcabee442b34224c6dedd923 SHA-256: c9141d0c29318e01f2fa84d5279be7c3bb1f7532181a01b6391a78ff84ecbc00
160 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links suggests a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded URLs point towards a social engineering attack designed to lead the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/431946152/roblox-generator-game-hack In PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/minecraft-tools_GM479516143.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-card-link-coin-master_GM406889139.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/100-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/roblox-group-free-robux_GM431946152.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_off00005328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5328 26120 bytes
SHA-256: d5c66cdf6a590bf865db69d9f7daa29ea0082cc7f9f28303b48ca170b18d35ec
font_01_sfnt_off00008f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F32 18116 bytes
SHA-256: 124341eb3a4a3b8bc1f076925fa8461137298bb957754babdcbe9c7592fcce55

Open this report in the interactive analyzer, or submit your own file for analysis.