Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ed42eb054205d63…

MALICIOUS

PDF

35.2 KB Created: 2021-07-05 08:04:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 92e81e7eb062b9ad02049f6d8b00b85a SHA-1: 71f63ad7c1b57a8497a74302982df18ad76d1ada SHA-256: 4ed42eb054205d637848af265817a7be47dfa3b339862e0b2ff322b0c4f3f134
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise game hacks and free spins for popular games like Coin Master and Roblox. These links are likely designed to redirect users to malicious sites for phishing or malware downloads. The ML classifier strongly flagged this PDF as malicious, supporting the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-links-for-free-spins-2021-game-hack PDF link annotation
    • http://aeridefense.com/image/data/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-ads-for-free_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-roblox-robux-generator_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/robux-app_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/ccv3-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-roblox-accountsd_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/cheat-engine-v3-roblox-download_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-free-catalog-items-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/wurst_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/scirpt-hack-roblox-vh2_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-co_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-free-robux-2021-no-verification-no-scam_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.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_002_off00002fff.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FFF 23612 bytes
SHA-256: 1da40a9f99df79037be46330fcf3a9acd59cc14997e35999deca3d475e488cc3
font_01_sfnt_off00006552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6552 18748 bytes
SHA-256: 8d119a4c648bdbcdb702e6b2637ce89b675d402599e3c746c9fba888505a2c80

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