Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cdbe14e7aebcfaf…

MALICIOUS

PDF

42.0 KB Created: 2021-05-15 03:35:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 60d2490fb7bf566345173dbcaea04827 SHA-1: 956e0b97235abe91b31e9ebe20f95da37ec7764a SHA-256: 0cdbe14e7aebcfaf282f5a3825ca0d9737ebd0ae70d7b38edfda23c313271550
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs that are designed as lures for game hacks and free currency, such as 'free-spins-coin-master-blogspot-game-hack'. The ML classifier strongly flagged this PDF as malicious, and the presence of these deceptive links indicates a phishing or social engineering attack. No scripts were extracted, but the document body and heuristics suggest the primary goal is to redirect users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/free-spins-coin-master-blogspot-game-hack PDF link annotation
    • http://g3galileo.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://g3galileo.com/images/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/earn-robux-sites_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/free-hair-roblox_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/wurst-commands_GM479516143.pdfIn PDF document text
    • http://g3galileo.com/images/abd-roblox_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/roblox-demon_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004945.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4945 24312 bytes
SHA-256: 92fd8c7b0026214ffdda576e8500c612c8e96317d037d2498e0528bde577cf51
font_01_sfnt_off00008130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8130 18464 bytes
SHA-256: 1c6dfc1f98a6641c171a543c2046344b7d819ff3e085ab3ae56c0ac3320f4f50

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