Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fad9afee22b3821…

MALICIOUS

PDF

46.0 KB Created: 2021-06-03 07:27:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ed44c0d14b26e8fa3ed97c08ecd2145c SHA-1: aa1959b157722533f914f2907535fe1fba287fda SHA-256: 9fad9afee22b382154d2b4d9011716d3e8060c5028d6c1e9c1529e04aa543929
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a game hack redirector, specifically mentioning 'free roblox clothes templates'. The embedded URL, https://netcdn.online/app/431946152/free-roblox-clothes-templates-game-hack, is the primary IOC. While no scripts were extracted, the nature of the lure suggests it's designed to trick users into downloading malware or visiting a malicious site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/free-roblox-clothes-templates-game-hack PDF link annotation
    • https://www.yatatravel.com/uploaded_files/userfiles/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-34-4-hack_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/pubg-uc-hack-xda_GM1330123889.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-35-2-hack_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://www.yatatravel.com/uploaded_files/userfiles/files/hack-the-coin-master-game_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052ed.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52ED 25952 bytes
SHA-256: 344348361eb65f57240c9d61d709cc387441bada3d86f3a86cec54012f61985f
font_01_sfnt_off00008fc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC5 18884 bytes
SHA-256: 640c63db932491e4e87d0cbe8bcafce8540653682ab1762ebca962469be3fa30

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