Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d8b5efd467646c2…

MALICIOUS

PDF

50.1 KB Created: 2021-05-17 11:13:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4e01a81c1fff9b669fbf43b137d1cbc1 SHA-1: d4e72f70873dfb9500fc887780875164c767992b SHA-256: 6d8b5efd467646c23c90f6851abdfe4f2126e299d2d34a9cc47efa304968ec62
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, including one pointing to 'netcdn.xyz' which is associated with downloading game hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a download button lure indicate a phishing or scam attempt. While no scripts were explicitly extracted, the document's structure and embedded links suggest it is designed to lead the user to download malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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-play-roblox-for-free-game-hack
    • http://www.access-coiffure-tours.fr/images/free-roebucks-com_GM431946152.pdf
    • http://www.access-coiffure-tours.fr/images/free-free-robux_GM431946152.pdf
    • http://www.access-coiffure-tours.fr/images/coin-master-game-hunters-club_GM406889139.pdf
    • http://www.access-coiffure-tours.fr/images/coin-master-spin-hack-app_GM406889139.pdf
    • http://www.access-coiffure-tours.fr/images/get-more-robux_GM431946152.pdf
    • http://www.access-coiffure-tours.fr/images/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://www.access-coiffure-tours.fr/images/coin-master-online-hack-download_GM406889139.pdf
    • http://www.access-coiffure-tours.fr/images/free-minecraft-skins-girl_GM479516143.pdf
    • http://www.access-coiffure-tours.fr/images/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdf
    • http://www.access-coiffure-tours.fr/images/free-spins-for-coin-master-2021_GM406889139.pdf
    • http://www.access-coiffure-tours.fr/images/best-free-roblox-outfits_GM431946152.pdf
    • http://www.access-coiffure-tours.fr/images/robux-money_GM431946152.pdf
    • http://www.access-coiffure-tours.fr/images/coin-master-hack-version-2021-free-download_GM406889139.pdf
    • http://www.access-coiffure-tours.fr/images/roblox-hacking-website_GM431946152.pdf
    • http://www.access-coiffure-tours.fr/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • http://www.access-coiffure-tours.fr/images/coin-master-free-spins-hack-no-human-verification_GM406889139.pdf
    • http://www.access-coiffure-tours.fr/images/blogspot-coin-master-free-spins_GM406889139.pdf
    • http://www.access-coiffure-tours.fr/images/coin-master-hack-unlimited-spins_GM406889139.pdf
    • http://www.access-coiffure-tours.fr/images/113-hacked-client_GM479516143.pdf
    • http://www.access-coiffure-tours.fr/images/mcpe-com_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b15.bin
fe1c76dbcef5c399585cec4d9b067797b920f65b8a4afb7e94393d149eb64e87
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B15 38904 bytes
font_01_sfnt_off0000a0e3.bin
906c5ab25954671913832602069445bf8e1bc7f4afd01cfc240b491243eecc42
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0E3 18672 bytes