Malicious PDF — malware analysis report

Static analysis result for SHA-256 98760541c6014228…

MALICIOUS

PDF

33.3 KB Created: 2021-07-09 17:10:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 079f9f3e7966e06a6f62e9dea0c6a768 SHA-1: 171f8ea0f03bdc2b90d4321b3211753895e81d34 SHA-256: 98760541c6014228cce1a03d82b8fd1788199f89b09616015e0e2bcded9dd0dc
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 0.9980

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/431946152/roblox-free-play-game-hack PDF link annotation
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/hack-genorators-roblox_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/how-to-get-free-items-from-games-roblox_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/howto-get-roblox-hacks-for-free_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/free-legel-robux_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/roblox-robux-hack-links_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/hacks-roblox-yt_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/copy-and-paste-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/roblox-hacks-for-tablet_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/how-to-get-robux-on-roblox-hack-no-offer_GM431946152.pdfIn PDF document text
    • http://www.tradenextindia.com/uploaded_files/userfiles/files/roblox-hack-unlimited-robux_GM431946152.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
font_00_sfnt_off00002ec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC3 21296 bytes
SHA-256: 6cd67ab3a2f1de056fe3b6ffde475d6e98bd9340a06a195e9a48ea4c7cef47bb
font_01_sfnt_off00005d47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D47 18984 bytes
SHA-256: c35af58ec1be6cea126a1986bf6375ff25a042e1cd070e849d6b37e85ec79a12

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