Malicious PDF — malware analysis report

Static analysis result for SHA-256 510057bd5353201d…

MALICIOUS

PDF

48.0 KB Created: 2021-05-16 12:21:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0f41b681a0669c08adc1a54043645c60 SHA-1: b85ff0f033b4cbd53e9efac2da5b70661de6d5fb SHA-256: 510057bd5353201dd67faf10b76207b82afd3e6ef7aca664958a19c374bf51ba
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which point to SEO-optimized PDF files related to game hacks and cheats. The primary URL and many others suggest a lure for users seeking in-game advantages, likely leading to malware downloads or phishing. While no scripts were explicitly extracted, the PDF structure and extensive link farm indicate a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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 https://netcdn.xyz/app/406889139/coin-master-3rd-village-free-2021-gift-card-game-hack
    • http://esm-royet.de/images/coin-master-hacks-for-cards_GM406889139.pdf
    • http://esm-royet.de/images/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • http://esm-royet.de/images/getrobux-info_GM431946152.pdf
    • http://esm-royet.de/images/free-roblox-wings_GM431946152.pdf
    • http://esm-royet.de/images/how-to-get-free-robux-website_GM431946152.pdf
    • http://esm-royet.de/images/apk-coin-master-hack_GM406889139.pdf
    • http://esm-royet.de/images/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdf
    • http://esm-royet.de/images/coin-master-online-hack-link_GM406889139.pdf
    • http://esm-royet.de/images/earn-rbx_GM431946152.pdf
    • http://esm-royet.de/images/minecraft-windows-10-edition-hacked-client_GM479516143.pdf
    • http://esm-royet.de/images/roblox-hack-generator_GM431946152.pdf
    • http://esm-royet.de/images/haktuts-coin-master-free-spins_GM406889139.pdf
    • http://esm-royet.de/images/free-robux-mobile_GM431946152.pdf
    • http://esm-royet.de/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdf
    • http://esm-royet.de/images/ways-to-get-free-robux_GM431946152.pdf
    • http://esm-royet.de/images/roblox40com-robux_GM431946152.pdf
    • http://esm-royet.de/images/coin-master-hack-without-verification-2021_GM406889139.pdf
    • http://esm-royet.de/images/coin-master-free-spin-ml_GM406889139.pdf
    • http://esm-royet.de/images/free-spins-and-coins-coin-master-link-2021_GM406889139.pdf
    • http://esm-royet.de/images/gameoffice-net-hack-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004af9.bin
57f58e8ce9a077e40c04c52e41688e73dd47c4ed5cb977515fe5f734dd303821
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AF9 30040 bytes
font_01_sfnt_off00008d50.bin
10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D50 2880 bytes
font_02_sfnt_off0000973a.bin
145eaa6a8f11b473be166907d45d70efbaffbadee0dd099250b7e848cae17136
pdf-font-stream PDF embedded font (sfnt) at offset 0x973A 18956 bytes