Malicious PDF — malware analysis report

Static analysis result for SHA-256 f62ae583916fabf3…

MALICIOUS

PDF

42.0 KB Created: 2021-05-14 05:53:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1eaee38b9260bf097f2098fb7459c704 SHA-1: d220034949cd9cc651c1ae3670cf7371a93ffdd4 SHA-256: f62ae583916fabf3a114bdeb744ba45b9958fcb0eae8c4cd6c582803108f0fb8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'robux generators'. The primary malicious URL identified is https://netcdn.xyz/app/431946152/generator-robux-game-hack. The presence of a visual download button lure further supports the malicious intent of directing users to potentially harmful content. No scripts were extracted, but the embedded links are sufficient evidence of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/generator-robux-game-hack In PDF document text
    • http://pa-kabmadiun.go.id/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-coin-link_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/i-robux_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/lucky-patcher-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pa-kabmadiun.go.id/images/minecraft-building-hacks_GM479516143.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_off0000481c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x481C 25184 bytes
SHA-256: 9bd9d27601d57420b47f779aae8ef68e5809e6aec5c662e36c85144fe00b1ae7
font_01_sfnt_off000081c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C5 18184 bytes
SHA-256: b4ce75e5ef7529b15199eebab458c6aae3f76f2df33fea1dae4b183417bcc22e

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