Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b11b1750857a03a…

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 15:16:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a9512be75b6bce2cde50814369165db8 SHA-1: 96b73852c10363b10e035279cbb9cc7756df80bd SHA-256: 7b11b1750857a03a4cb3415f8a80e202c0e3c2da10fe19714a36b350d66ede08
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game hacks and custom skins to entice users to click on a link. The primary link, http://netcdn.tw/app/479516143/free-custom-minecraft-skins-game-hack, redirects to a malicious site. The document's structure and embedded URLs suggest it is designed to lead users to potentially harmful content or malware downloads. No scripts were extracted from this sample.

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/479516143/free-custom-minecraft-skins-game-hack PDF link annotation
    • https://nature-air.com.tw/upload/files/freerubux_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/roblox-hack-cheat-engine-67_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/hacks-for-roblox-jailbreak-noclip-no-email_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/animate-a-roblox-character-online-free_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/how-to-earn-free-roblox_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/hat-free-roblox_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-roblox-places_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/roblox-apocalypse-rising-cheat-codes_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/kuso-icu-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/how-to-make-an-automatic-hack-equip-script-for-roblox_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/how-to-get-free-robux-on-roblox-games_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3027 22500 bytes
SHA-256: 745f3008ceeb150b51107d1945bbf6ca75c2b4f7a97d21e4605b30bf557096e9
font_01_sfnt_off000061c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C3 18568 bytes
SHA-256: c4c6daf187a62d33816a4be374f7655b111248c6c53bfc224d088d33339ffbdf

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