Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd0795ee81a45c0a…

MALICIOUS

PDF

35.4 KB Created: 2021-05-23 22:44:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d70dea78528db5425b4a96cee78f2a9c SHA-1: d67f43ec6e34d1927e418d509224a3d043d3e202 SHA-256: bd0795ee81a45c0a065b7fb7270ef3551bef00fd866bf50aa39903eed9123a78
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and free spins. The document body explicitly mentions 'Free Spins From Coin Master' and 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', reinforcing the lure. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

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/406889139/free-spins-from-coin-master-game-hack In PDF document text
    • http://carmen-duran.com/images/microsoft-roblox-rewards_GM431946152.pdfIn PDF document text
    • http://carmen-duran.com/images/coin-master-free-items_GM406889139.pdfIn PDF document text
    • http://carmen-duran.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://carmen-duran.com/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://carmen-duran.com/images/minecraft-hacks-list_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_off000032b5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B5 24912 bytes
SHA-256: 3dc90b1fe414ae50e67991dac52862986a8feeb550cb0e3621cf8b0f6499e24b
font_01_sfnt_off00006974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6974 18148 bytes
SHA-256: a8179ab01d9f651dd6fb5ce3364ead5561884d8b40fe8a62eaf26fde05d0c646

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