Malicious PDF — malware analysis report

Static analysis result for SHA-256 84cf6dee2c3974c9…

MALICIOUS

PDF

44.4 KB Created: 2021-05-11 01:02:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 60efb88bc6092cff6a773c7852042427 SHA-1: 2abaae35aba6e8e2bd056ddb20e9e3c799dc0fd2 SHA-256: 84cf6dee2c3974c935943ea6ff912f19ca4d87925ae0879bca16064c1b18cf2c
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 0.9632

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/free-robux-games-on-roblox-game-hack PDF link annotation
    • http://d-loft.com.tr/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/latest-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-free-spin-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/minecraft-jar-free_GM479516143.pdfIn PDF document text
    • http://d-loft.com.tr/images/freerobux-co_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://d-loft.com.tr/images/free-promo-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://d-loft.com.tr/images/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4822 25228 bytes
SHA-256: 21c6c78e61ebde6d0ace3a53d636241a7a6d096a8d847eb79bb080e3c8d64f1b
font_01_sfnt_off00008046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8046 2824 bytes
SHA-256: bd082aa73fbb1a8b3bd2e5c998d3d8e31d1dfc71ea36f846af746f69a0d2ab7f
font_02_sfnt_off000089fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FA 18576 bytes
SHA-256: 121d272924a8948b6bfdf19867642727f57edf659587de43eb46571e5003926c

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