Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c70cddaea88787f…

MALICIOUS

PDF

37.0 KB Created: 2021-05-25 07:46:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f25b4f5f6e20a840e430b7c458b63f2e SHA-1: 31196f7dbd63e68bcfd3f4bb4fc4894783eb46a9 SHA-256: 6c70cddaea88787f7f8b9c64135c204775127867c61e58d18129dd0cd430666c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, one of which, https://netcdn.xyz/app/479516143/how-to-get-minecraft-java-for-free-game-hack, is identified as a malicious redirector. The document body and heuristics indicate a lure for game hacks or generators, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to lead the user to a compromised site or download further malware.

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/479516143/how-to-get-minecraft-java-for-free-game-hack In PDF document text
    • http://www.dhs.or.id/new/public/ckfinder/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://dhs.or.id/new/public/ckfinder/userfiles/files/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://www.dhs.or.id/new/public/ckfinder/userfiles/files/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • http://www.dhs.or.id/new/public/ckfinder/userfiles/files/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • http://dhs.or.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-27_GM406889139.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_off000034a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34A5 25796 bytes
SHA-256: edd47a8220ea1ccb90cd8e8db39c6c40360a7bd072b4db2a6aa869e116c4c559
font_01_sfnt_off00006fa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA6 18152 bytes
SHA-256: f45ec97da20a8e70f6e7437c3ced33d3bcbd99aef5af4daf3be0ff08d51a9e58

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