Malicious PDF — malware analysis report

Static analysis result for SHA-256 16b0e494452b9d17…

MALICIOUS

PDF

44.8 KB Created: 2021-05-13 18:44:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4b9cba0fbaf7da96b40372e0a24b136c SHA-1: 515d808117f36c9ab57c3e48bf3911996cbfb58b SHA-256: 16b0e494452b9d175626e138b1838ea2797a02d2ab7f894b19b3bbb8895e8329
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. The ML_NYX_PDF_MALICIOUS heuristic also flagged this document with high confidence. The embedded URLs and the document body suggest a lure for free spins or hacks, likely to drive traffic to SEO spam sites or potentially host further malicious 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 https://netcdn.xyz/app/406889139/free-coin-master-spins-without-human-verification-game-hack
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/earn-free-robux_GM431946152.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-links-free-spins_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/how-to-duplicate-coin-master-spin-hack_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-daily-free-spins-link-2021-today_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-hack-tool_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/free-robux-hacks-no-verification_GM431946152.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-free-spins-hack-2021_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/minecraft-windows-10-free_GM479516143.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/how-to-hack-someones-minecraft-account_GM479516143.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-hack-2021-no-survey_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/www-roblox-com-robux-free_GM431946152.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/oprewards-robux_GM431946152.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/is-it-possible-to-hack-coin-master_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-attack-madness-hack_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/app-for-free-spins-on-coin-master_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-hack-2021-ios_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/get-free-minecraft-account_GM479516143.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-hack-download-2021_GM406889139.pdf
    • http://www.hiddencanyonbejiguwang.com/assets/CKImages/files/coin-master-online-hack-no-survey-no-password_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cf9.bin
6e000aa29135ff6e8e9b5af6f40cb1708fa7c38fb5e096c938c27311e93dd0af		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CF9 30840 bytes
font_01_sfnt_off00008b7b.bin
2ea73084728f1b585ff149514882d7306693ae2bd3bbffba62615d44dd485d67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7B 18784 bytes

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