Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc7cf2d6f2290820…

MALICIOUS

PDF

40.8 KB Created: 2021-05-19 05:38:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 49860b849c7e77f947aa4800fe5c917e SHA-1: e395cdcb1eefd10c52fc04f4df474298dc9a0550 SHA-256: dc7cf2d6f2290820f9f764ab394cf5c5d16e557d065b186a8a8510c7f0ff958f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators' for popular games. The presence of a visual download button lure and the ML classifier's high confidence score further support the malicious nature of this document. The primary attack pattern involves social engineering users into clicking these deceptive links, likely leading to further malware downloads or phishing attempts.

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/406889139/coinmaster-rewards-game-hack In PDF document text
    • http://skwolcott.com/images/coin-master-hack-online-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-support_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://skwolcott.com/images/hack-coin-master-net_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/roblox-com-www_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/get-robux-today_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-hack-app-2021-download_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://skwolcott.com/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://skwolcott.com/images/coin-master-3rd-village-free-2021-gift-card_GM406889139.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_003_off00004757.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4757 23884 bytes
SHA-256: a0dd521f3efda4a06c100f6241f4d46fc7c4a5f70af24871512eeba9f61509a5
font_01_sfnt_off00007d6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6D 18144 bytes
SHA-256: 3304910cf416930b47305d75e02d2266dd9cc93df9b4dcfa32843af2f30c9813

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