Malicious PDF — malware analysis report

Static analysis result for SHA-256 854b95d994d65da6…

MALICIOUS

PDF

50.4 KB Created: 2021-05-19 17:52:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5989d4d8189c31d958f99af84b1372e0 SHA-1: d9e4b469b07e5a2edd67408a65cb6202a8ff3956 SHA-256: 854b95d994d65da67cd272e5300588a0050e82239a1aec321222de2cc662d8ea
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and a visual lure suggesting a download, consistent with a phishing attempt to trick users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple game-related lures indicates a social engineering tactic. While no scripts were directly extracted, the PDF structure and embedded URIs suggest it may contain JavaScript or other active content designed to facilitate a download or exploit.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9349

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/hacks-roblox-game-hack
    • https://verstricktundzugenaeht.com/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdf
    • https://verstricktundzugenaeht.com/images/coin-monster_GM406889139.pdf
    • https://verstricktundzugenaeht.com/images/free-robux-no-email_GM431946152.pdf
    • https://verstricktundzugenaeht.com/images/spin-coin-master-free_GM406889139.pdf
    • https://verstricktundzugenaeht.com/images/free-daily-spins-and-coins-for-coin-master_GM406889139.pdf
    • https://verstricktundzugenaeht.com/images/robux-free-online_GM431946152.pdf
    • https://verstricktundzugenaeht.com/images/free-roblox-girl-hair-not-a-model_GM431946152.pdf
    • https://verstricktundzugenaeht.com/images/wahoogaming-co-free-robux_GM431946152.pdf
    • https://verstricktundzugenaeht.com/images/coin-master-daily-free-spins-link-haktuts_GM406889139.pdf
    • https://verstricktundzugenaeht.com/images/roblox-font-free_GM431946152.pdf
    • https://verstricktundzugenaeht.com/images/coin-master-daily-free-spins-2021_GM406889139.pdf
    • https://verstricktundzugenaeht.com/images/grab-points-login_GM431946152.pdf
    • https://verstricktundzugenaeht.com/images/free-roblox-shirts-templates_GM431946152.pdf
    • https://verstricktundzugenaeht.com/images/mcpe-master-hack-unlimited-coins_GM406889139.pdf
    • https://verstricktundzugenaeht.com/images/download-minecraft-free-hiapphere_GM479516143.pdf
    • https://verstricktundzugenaeht.com/images/coin-master-free-spins-today-daily-links_GM406889139.pdf
    • https://verstricktundzugenaeht.com/images/free-robux-ad_GM431946152.pdf
    • https://verstricktundzugenaeht.com/images/can-i-get-free-tiktok-likes_GM835599320.pdf
    • https://verstricktundzugenaeht.com/images/free-robux-without-verification_GM431946152.pdf
    • https://verstricktundzugenaeht.com/images/coin-master-free-spins-and-coins-daily-links_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048c8.bin
01e264fd69020127d7c883ebaed0eaff5b6645747811756440cfab1a3eab9cab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48C8 28188 bytes
font_01_sfnt_off000086bc.bin
ddfd86c88a6b8304bc31eeb9f28c8110fac325cdacc87503bacf4ac741777490		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86BC 8704 bytes
font_02_sfnt_off0000a327.bin
7ce99462d7db30d9d686f16fdffa062e1f918298e62a3f0da8fa4bf2d2fabb79		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA327 18184 bytes

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