Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6bf638200375aad…

MALICIOUS

PDF

36.2 KB Created: 2021-05-21 08:14:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7f84794398d2913d941432479627d49a SHA-1: 6c89a7fbc42c0252f1724232abb1e5faaa04dc3c SHA-256: c6bf638200375aad49381757f7b964e8610c8d47c9009c6c6576924fe5422f0e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of free in-game currency or hacks. The primary malicious URL is https://netcdn.xyz/app/835599320/how-to-get-free-followers-on-tiktok-game-hack, which is presented as a "free generator" for TikTok followers. The document body also contains other links to similar scam PDFs hosted on whiteyaknepal.com.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/835599320/how-to-get-free-followers-on-tiktok-game-hack In PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/pokemon-go-free-coin-promo-code_GM1094591345.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/minecraft-java-server-hosting-free_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
stream_002_off0000327a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x327A 26564 bytes
SHA-256: bb3db1b6d9cf73e85dda93682f23019f38c57ccc204da0bf322428e7eb752ea8
font_01_sfnt_off00006e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E27 17692 bytes
SHA-256: c8a0034b4012066e27b368389264813a3515151838273d971ed31104f84b04bc

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