Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b7adf52a7cc587d…

MALICIOUS

PDF

41.9 KB Created: 2021-05-13 09:32:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2b6e2ccb760512c68a6dd15efec4ce77 SHA-1: 2096fdc04276c8b343faf3109fc400a29ccf514b SHA-256: 2b7adf52a7cc587d96fee33fb7dfe0d039446721ffbc321390315db2ae7d9513
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, identified as a link farm, directing users to sites offering game hacks and free currency. The ML classifier strongly indicates maliciousness, and the presence of a 'download button' heuristic further supports a malicious workflow. The document's content and structure suggest it is designed to trick users into visiting these external URLs, likely for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/hack-coin-master-spin-android-game-hack PDF link annotation
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-hack-unlimited-spins_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-hack-tool-pc_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/latest-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-free-soins_GM406889139.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
stream_003_off00004b10.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B10 24284 bytes
SHA-256: 67e035b2a325ea6c9f7ac8d8dc6338293c958408fecf214595ccf8c914d6465d
font_01_sfnt_off000081e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E8 18068 bytes
SHA-256: 1ed1c134697499a64800fff091906e8fba4251740a5710e312219489406905e8

Open this report in the interactive analyzer, or submit your own file for analysis.