Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcc28c84633de15c…

MALICIOUS

PDF

43.1 KB Created: 2021-05-18 03:44:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 08d05aef78f88ab09fc70e61c4594db3 SHA-1: 14a09dc0d3b7934fd467dd70c0d14eabc170e7ec SHA-256: dcc28c84633de15c9cfb0f90b0a01806db0b64aa4413861fb1bbfa1938d6ccf2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document uses an advance-fee scam lure, promising free Robux to entice users to click on a link. The embedded URL, https://netcdn.xyz/app/431946152/free-robux-on-iphone-game-hack, likely leads to the download of a malicious payload. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/free-robux-on-iphone-game-hack
    • http://www.viniperfetti.com/images/roblox-phantom-forces-hack_GM431946152.pdf
    • http://www.viniperfetti.com/images/mobihack-net-roblox-hack_GM431946152.pdf
    • http://www.viniperfetti.com/images/roblox-hack-generator_GM431946152.pdf
    • http://www.viniperfetti.com/images/how-to-change-your-name-in-roblox-for-free_GM431946152.pdf
    • http://www.viniperfetti.com/images/how-do-you-get-roblox-for-free_GM431946152.pdf
    • http://www.viniperfetti.com/images/games-that-give-free-robux_GM431946152.pdf
    • http://www.viniperfetti.com/images/sites-to-get-free-robux_GM431946152.pdf
    • http://www.viniperfetti.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
    • http://www.viniperfetti.com/images/coin-master-free-spin-link-today-50_GM406889139.pdf
    • http://www.viniperfetti.com/images/wurst-18_GM479516143.pdf
    • http://www.viniperfetti.com/images/how-to-get-free-clothes-on-roblox_GM431946152.pdf
    • http://www.viniperfetti.com/images/coin-master-hack-app_GM406889139.pdf
    • http://www.viniperfetti.com/images/free-robux-no-human-verification-and-no-survey_GM431946152.pdf
    • http://www.viniperfetti.com/images/coin-master-hack-game-download-mod-apk_GM406889139.pdf
    • http://www.viniperfetti.com/images/free-robux-meme_GM431946152.pdf
    • http://www.viniperfetti.com/images/roblox-hacked-version_GM431946152.pdf
    • http://www.viniperfetti.com/images/huskybuscom-free-robux_GM431946152.pdf
    • http://www.viniperfetti.com/images/roblox-free-robux-no-human-verification_GM431946152.pdf
    • http://www.viniperfetti.com/images/coin-master-34-4-free-download_GM406889139.pdf
    • http://www.viniperfetti.com/images/minecraft-pe-apk-download_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004728.bin
98081ac846a138c0bcba8f37ab17c745fbc11f3c9b991a791a4359c43c4acc2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4728 27952 bytes
font_01_sfnt_off000085ff.bin
09002ce3ba94cfa5154e24d4605185e25e9b5ae3e76d565aeacf431b5bbbf1e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85FF 18356 bytes

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