Malicious PDF — malware analysis report

Static analysis result for SHA-256 7db6106b3830d185…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 04:37:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fb2fb06251213686f4acff332dd07bdf SHA-1: 98f9c884348531a602db0f6f023e803ce6f79d1a SHA-256: 7db6106b3830d185b7ab9b2001a3d51e3cb66fa0b846595fff608e4119da708b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which are SEO-optimized and point to pages promising free in-game items or hacks. The primary URL, http://netcdn.tw/app/479516143/how-to-get-minecraft-realms-for-free-game-hack, suggests a lure for obtaining game-related benefits. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, reinforcing the malicious intent of directing users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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/how-to-get-minecraft-realms-for-free-game-hack
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/tiktok-free-online-games_GM835599320.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-gift-card-generator-roblox_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-fall-roblox_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/hack-counter-blox-roblox-offensive-download_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-links-to-free-spins_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-free-robux-d_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/robux-hack-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/comment-installer-des-cheat-pvp-sur-roblox_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/hack-para-las-contraseas-de-roblox_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/all-coin-master-spin-link-and-free-download_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/hacks-for-roblox-royale-high_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-without-verification_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-app-2021-download_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/free-card-link-coin-master_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/roblox-ipad-free-robux_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/roblox-gui-hack-download_GM431946152.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdf
    • http://pn-singaraja.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-usa-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000345f.bin
7cc4a7ce1a1fe695140de9657913f5afb5b2dbd9b338d444666bff3bbad5bb68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x345F 22580 bytes
font_01_sfnt_off00006665.bin
206556e0041cad10c7ca9339ae93eddcae4d18c9e91f782ddd10985e6c899e97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6665 18496 bytes

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