Malicious PDF — malware analysis report

Static analysis result for SHA-256 30bd34f815dae6bb…

MALICIOUS

PDF

44.6 KB Created: 2021-05-14 05:30:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ed9e643544627034c6e14c092d1cfdf3 SHA-1: b8097d7bf4382e0d86b29ae94f78e28e6efb6dda SHA-256: 30bd34f815dae6bb6ec9e1a1fab74ca364cfe00bbb8943e49ab346d597c820ae
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including one identified as a malicious redirector for 'game hacks'. The document body and heuristics indicate a lure to download other malicious PDFs, likely to further compromise the user. No scripts were extracted, but the presence of embedded URLs and the nature of the lure suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/coin-master-hack-trick-2021-game-hack In PDF document text
    • https://htdvn.com/public/upload/files/roblox-free-play_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/robux-sites_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-website_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/hack-coin-master-android_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-home_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hack-spins-and-coins-unlimited-free_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049db.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49DB 24804 bytes
SHA-256: 9df267b854570f40aba271dc47ac1927eab476d1ee188b1b515f42ec1d5e2c8a
font_01_sfnt_off0000827c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x827C 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off00008c1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1E 18116 bytes
SHA-256: c4260f5e787f6e7dffce264d62518f3a61bcf9e6f1fccfaba9053fe678d6f70c

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