Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ab6bdaacbd0b1d2…

MALICIOUS

PDF

49.9 KB Created: 2021-06-03 07:15:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 7927f0c1298dac16d28b5badee976c66 SHA-1: faa2ac2f2b873606b8b3b2c0cbff3a3c03aa0c59 SHA-256: 6ab6bdaacbd0b1d233ab7ce7395c7d86de0ef7526f6e2b5d03d37da9ebc91bd1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as "free generator" or "game hack" lures. The primary link, https://netcdn.online/app/479516143/minecraft-bedrock-for-free-game-hack, is flagged as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or redirection attempt to deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9751

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.online/app/479516143/minecraft-bedrock-for-free-game-hack In PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/mistplay-robux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/original-roblox_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/tiktok-free-views-apk-download_GM835599320.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005406.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5406 24940 bytes
SHA-256: 528f93c6bdaf8e0e2da5f2daebcef9554049a55fd516711e0bdf2f024b7039b8
font_01_sfnt_off00008bc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC7 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off0000961c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x961C 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off0000a02d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA02D 18268 bytes
SHA-256: 421dc37018d5e6f1467ffbccbacebf5894202cb157ac672e86022266516fa266

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