Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0d2fcafece1d9d…

MALICIOUS

PDF

35.1 KB Created: 2021-07-03 22:01:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 50090e925929f08eba860914ca870ff1 SHA-1: f0ab00c82e0ce967d621ecd2c09fb4a259538bd7 SHA-256: 8e0d2fcafece1d9dfaede0fc7fa87a1f8e33a7a1e3408dd85fce8db0aff3a1ba
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and generators to entice users. It contains numerous embedded URLs that redirect to a link farm, specifically targeting popular games like Minecraft and Roblox. The primary function appears to be directing users to potentially malicious websites or further download pages, indicated by the PDF_SEO_LINK_FARM and PDF_GAME_HACK_REDIRECT_LURE heuristics.

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/minecraft-java-for-free-game-hack PDF link annotation
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-tool-v1-9-pc_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-hack-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-summer-rewards_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-hack-btools-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-city-of-london-money-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-2k-hacks_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robloxcom-free-robux-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robux-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-wallpapers-for-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/descargar-hack-de-fly-exe-para-roblox_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_off00003584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3584 22264 bytes
SHA-256: d258b64818d3f7e437da7983daf77135bfc00cc90c9ff1f2640efafe42a271a4
font_01_sfnt_off00006680.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6680 18276 bytes
SHA-256: 68849f4d63324190072240a7063db5b1f9739ca1319a3b9e65ce22385324d153