Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cbf3f7e7a1cccf3…

MALICIOUS

PDF

49.0 KB Created: 2021-05-14 11:28:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 324f45677a8c98de032e7a62b5afe7a6 SHA-1: 9a96203fd94d8a0f21f3ace23ce82e8fbd019ed4 SHA-256: 6cbf3f7e7a1cccf3e6c726b4fc329564de64813523150436c83550db03031cd4
94 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links pointing to websites that offer hacks and generators for online games like Coin Master. The heuristic PDF_SEO_LINK_FARM indicates a large number of external links, suggesting a link farm designed to attract users searching for game cheats. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a scam or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 3

  • 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.
  • 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-hack-online-generator-game-hack
    • http://posterprintshop.nl/images/moonactive-coin-master-free-spins_GM406889139.pdf
    • http://posterprintshop.nl/images/coin-master-free-spins-generator-no-verification_GM406889139.pdf
    • http://posterprintshop.nl/images/coin-master-free-spins-generator-no-human-verification_GM406889139.pdf
    • http://posterprintshop.nl/images/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdf
    • http://posterprintshop.nl/images/coin-master-mod_GM406889139.pdf
    • http://posterprintshop.nl/images/bloxpage-free-robux_GM431946152.pdf
    • http://posterprintshop.nl/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdf
    • http://posterprintshop.nl/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
    • http://posterprintshop.nl/images/coin-master-free-daily-spins-and-coins_GM406889139.pdf
    • http://posterprintshop.nl/images/pasos-para-hackear-coins-master_GM406889139.pdf
    • http://posterprintshop.nl/images/monttechscom-coin-master-free-spins_GM406889139.pdf
    • http://posterprintshop.nl/images/coin-master-hack-apk-free-download_GM406889139.pdf
    • http://posterprintshop.nl/images/free-robux-easy_GM431946152.pdf
    • http://posterprintshop.nl/images/free-coin-master-spins_GM406889139.pdf
    • http://posterprintshop.nl/images/coin-free-master_GM406889139.pdf
    • http://posterprintshop.nl/images/coin-master-free-daily-spins-link_GM406889139.pdf
    • http://posterprintshop.nl/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdf
    • http://posterprintshop.nl/images/how-to-get-minecraft-dungeons-for-free_GM479516143.pdf
    • http://posterprintshop.nl/images/free-robux-without-downloading-anything_GM431946152.pdf
    • http://posterprintshop.nl/images/free-coin-master-spins-no-human-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b95.bin
351c704168f02fd678f4b379f34177ee6a39d8b5a7a43e4fdb2737db23832d74
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B95 27340 bytes
font_01_sfnt_off00008b0d.bin
b8752537cabc0e3f179bf3aaaef581a0fdb13ece1bf92456328536adc68040b9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0D 5376 bytes
font_02_sfnt_off00009ceb.bin
6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
pdf-font-stream PDF embedded font (sfnt) at offset 0x9CEB 2788 bytes
font_03_sfnt_off0000a6db.bin
f10d9d7ac26b37aa9393865027a0ede53c5b0e24a5f9161d6938870a0e29fed8
pdf-font-stream PDF embedded font (sfnt) at offset 0xA6DB 17788 bytes