Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f81954cca1f5a60…

MALICIOUS

PDF

33.5 KB Created: 2021-07-06 04:01:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d3beb5b17a9b1f6797d68f924ce16801 SHA-1: a5b79a7060e03821846b261083b3866f32dc2984 SHA-256: 6f81954cca1f5a60233409855bc2b8f4fda01ad246e935c2050ac6f275c93844
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document acts as a link farm, directing users to various websites that promise game hacks and free in-game currency. The primary lure is the promise of 'free generators' or 'hacks' for popular games like Minecraft and Roblox. The document contains numerous embedded URLs that lead to these deceptive sites, likely serving as a distribution point for malware or unwanted applications.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/479516143/can-you-download-minecraft-for-free-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/roblox-hack-app-android_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-best-free-exploit-march-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-clothes-from-stores_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-doge-hat-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/who-hacked-my-main-group-chat-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-toy-codes-november-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-giveaway-no-hacks-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-phantom-forces-dll-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hack-de-roblox-para-volar_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/autospin-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hacking-of-roblox-and-kids-you-tube_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_off00002f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0C 21596 bytes
SHA-256: 49ac06fd517099fa2e36ff916987e921e3a61815f6f8f1541863fc4c0212a746
font_01_sfnt_off00005e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E58 18880 bytes
SHA-256: d04a507d3641779a3965f5a6b6e6dd9ade08e797d0958b4441090374282c4c7c