Malicious PDF — malware analysis report

Static analysis result for SHA-256 0722a08e16454e20…

MALICIOUS

PDF

42.2 KB Created: 2021-05-16 00:40:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9bc105c73ea6f601d0345b8d9ac14b1b SHA-1: 6c54a6c0dca793273dc3be0b8c9241da8e4efde5 SHA-256: 0722a08e16454e20cec8421f105533a5863c27420147a632fc12dc76b1fbd881
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 websites offering 'free spins' for games like Coin Master and Robux. The ML_NYX_PDF_MALICIOUS heuristic also flagged this document with high confidence. While no scripts were explicitly extracted, the document's structure and embedded links suggest it is designed to redirect users to potentially malicious or phishing sites, likely distributed as a spearphishing attachment.

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/coin-master-free-spins-link-2021-hack-game-hack
    • https://library.itn.ac.id/perpusitn/repository/coin-spin-link_GM406889139.pdf
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-link-may-2021_GM406889139.pdf
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • https://library.itn.ac.id/perpusitn/repository/free-appsfor-coin-master-daily-rewards_GM406889139.pdf
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-inspect_GM431946152.pdf
    • https://library.itn.ac.id/perpusitn/repository/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdf
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-glasses_GM431946152.pdf
    • https://library.itn.ac.id/perpusitn/repository/blox-best-robux_GM431946152.pdf
    • https://library.itn.ac.id/perpusitn/repository/daily-free-spins-for-coin-master_GM406889139.pdf
    • https://library.itn.ac.id/perpusitn/repository/robux-cheat_GM431946152.pdf
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdf
    • https://library.itn.ac.id/perpusitn/repository/how-to-gift-robux-on-mobile_GM431946152.pdf
    • https://library.itn.ac.id/perpusitn/repository/free-face-roblox_GM431946152.pdf
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • https://library.itn.ac.id/perpusitn/repository/minecraft-free-download-mac-full-version_GM479516143.pdf
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdf
    • https://library.itn.ac.id/perpusitn/repository/roblox-hacks-and-cheats_GM431946152.pdf
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdf
    • https://library.itn.ac.id/perpusitn/repository/spin-link-coin-master_GM406889139.pdf
    • https://library.itn.ac.id/perpusitn/repository/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004969.bin
0485ac65ed4e5b09c9090c3da3271db925e7f2ba7b00c8cd8cdefb3f4b0645c0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4969 24576 bytes
font_01_sfnt_off000081cb.bin
cd0dac1e42acf1dd8fac6ba5781826c7c26695a9ef6d84d4a0ecdd405406f8c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81CB 18456 bytes

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