Malicious PDF — malware analysis report

Static analysis result for SHA-256 53cc9ceaa3b7acbd…

MALICIOUS

PDF

43.8 KB Created: 2021-05-15 23:31:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 334936ecd9406a3c0d228939fb9b9e0f SHA-1: 614c6be282e09ecd92e76f5a8e2f101037cf080a SHA-256: 53cc9ceaa3b7acbdd54db6bdcff61ba14583799a7cc1946da46c83a1523771d4
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a document body that promotes free Robux and Coin Master spins, indicating a scam or phishing attempt. The PDF_SEO_LINK_FARM heuristic firing suggests a large number of external links were generated, likely to direct users to malicious websites. The ML_NYX_PDF_MALICIOUS score further supports the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/431946152/how-to-get-1-million-robux-for-free-2021-game-hack
    • http://www.hlad.hr/files/free-robux-without-human-verification-2021_GM431946152.pdf
    • http://www.hlad.hr/files/rblx-city-free-robux_GM431946152.pdf
    • http://www.hlad.hr/files/how-to-get-free-robux-easy_GM431946152.pdf
    • http://www.hlad.hr/files/free-robux_GM431946152.pdf
    • http://www.hlad.hr/files/coin-master-hack-tool-india_GM406889139.pdf
    • http://www.hlad.hr/files/100-free-spins-for-coin-master-2021_GM406889139.pdf
    • http://www.hlad.hr/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
    • http://www.hlad.hr/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdf
    • http://www.hlad.hr/files/free-spin-coin-master-hack-2021_GM406889139.pdf
    • http://www.hlad.hr/files/free-robux-codes-no-verification-2021_GM431946152.pdf
    • http://www.hlad.hr/files/coin-master-free-generator_GM406889139.pdf
    • http://www.hlad.hr/files/roblox-no-download-hack_GM431946152.pdf
    • http://www.hlad.hr/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://www.hlad.hr/files/coin-master-free-coins-link_GM406889139.pdf
    • http://www.hlad.hr/files/coin-master-code-for-free-spins_GM406889139.pdf
    • http://www.hlad.hr/files/codes-to-get-free-robux_GM431946152.pdf
    • http://www.hlad.hr/files/how-to-get-free-robux-no-survey_GM431946152.pdf
    • http://www.hlad.hr/files/coin-master-free-spins-8-14-2021_GM406889139.pdf
    • http://www.hlad.hr/files/minecraft-images-free_GM479516143.pdf
    • http://www.hlad.hr/files/robux-hacks-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004af1.bin
1fdd81df4421ac99627898558bc6076bf6782a25c243ddfb5b8034fb1390a013		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AF1 25612 bytes
font_01_sfnt_off0000866e.bin
6899649986c08cd88da4e8ab8a55ee52e34bf21c69bba097983649bb28a6798f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x866E 19072 bytes

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