Malicious PDF — malware analysis report

Static analysis result for SHA-256 a60039cd8219f445…

MALICIOUS

PDF

43.8 KB Created: 2021-05-19 15:56:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2441fa82d2003fd2ffcb27f6f7c6aeae SHA-1: 29e496b0a4a9462142226cb2fa97ffe4223fd7c5 SHA-256: a60039cd8219f445e176ca6226c361eeac6ee7484f134d8ee33ce52eec77b512
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/431946152/how-to-get-free-robux-without-offers-game-hack PDF link annotation
    • http://babbibooth.com/images/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/freerubux_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/clean-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-hack-online_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://babbibooth.com/images/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/earn-robux-sites_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/roblox-robux_GM431946152.pdfIn PDF document text
    • https://discordIn 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_off00004c7a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C7A 25520 bytes
SHA-256: 41eb2ee2047c6445d60babe4db4291c3fe78274f3365ff37a9aa53407c6e4981
font_01_sfnt_off00008770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8770 18768 bytes
SHA-256: 90722031df8f7e72138583497ea9de630fa8b2a13d2a01041543da505e8107b2

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