Malicious PDF — malware analysis report

Static analysis result for SHA-256 80d60a60bfae7162…

MALICIOUS

PDF

33.8 KB Created: 2021-06-18 20:58:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 7c25c1f063de5afdaeb21f930693b413 SHA-1: 8780837e480be15fd456422ddf10c9f653995276 SHA-256: 80d60a60bfae7162a5a7853da0ed2b967fcb39b06684359785513637aa7571a3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or malware downloads. The document body and embedded URLs reinforce this lure, aiming to exploit user interest in popular online games.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.co/app/431946152/como-ser-hacker-en-roblox-prove-it-game-hack In PDF document text
    • https://kldcardio.ru/images/roblox-shirt-texture-free-shipping_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • https://kldcardio.ru/images/free-roebucks-com_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://kldcardio.ru/images/roblox-hack-tool-cheat-hacker_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/how-to-get-free-robux-without-bc-2021_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/free-robux-generator-no-survey-or-offers_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/alert-before-hack-roblox_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/create-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://kldcardio.ru/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/roblox-how-to-get-free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/legit-free-robux-games_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/minecraft-font-free_GM479516143.pdfIn PDF document text
    • https://kldcardio.ru/images/robux-hacks-p_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://kldcardio.ru/images/free-robux-mobile-app_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/roblox-flying-hack-free_GM431946152.pdfIn PDF document text
    • https://kldcardio.ru/images/how-to-get-free-robux-codes_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_off00002d00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D00 22404 bytes
SHA-256: 8e0ca636a299697544430348b3e3197f44b646ead66c9f48ac256b738b38342d
font_01_sfnt_off00005ed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED3 19100 bytes
SHA-256: 965d69fc8e555a3b534a5c00abcc7dd85327f9dd5a1087bde3e9e743c8392dc4

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