Malicious PDF — malware analysis report

Static analysis result for SHA-256 a02e5c29bbbd8bdb…

MALICIOUS

PDF

45.7 KB Created: 2021-05-15 13:07:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1d82c519ba3edd03145f34b846b5348e SHA-1: d37cb4440e6ba3e99b126b4acc7fa6ec14f657f4 SHA-256: a02e5c29bbbd8bdbfe875b06cffccd5ee173f38992ba8cef6b39d0db1f6fe952
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and free spins. The primary malicious URL identified is https://netcdn.xyz/app/406889139/collect-free-spin-linms-coin-master-game-hack. The document body and heuristics indicate a lure for users to click these links, likely leading to further malware downloads or phishing attempts. No scripts were extracted, but the embedded URLs and redirector behavior are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/collect-free-spin-linms-coin-master-game-hack In PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/roblox-generator_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://nebraskahospitalityhalloffame.com/images/coin-master-hack-apk-app_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_off0000497f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x497F 26868 bytes
SHA-256: a616449486c48d6f0ea80d598a6cee4b1657df34b3269b761225c854880d42ed
font_01_sfnt_off000086ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86CA 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off0000906c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x906C 18220 bytes
SHA-256: 6bf005c76973f45a0e0a8f3abab90b6c8e29498ad82e17ae6753f8ebc4fba648

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