Malicious PDF — malware analysis report

Static analysis result for SHA-256 663107549ab6bc8b…

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 03:36:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 88ffae1c2943e5c3f378dc1dada9d2b7 SHA-1: 5f3780ec3b6e0d779ab5ed9a9336a93f0cf3b2c1 SHA-256: 663107549ab6bc8b8dbc3f7e94dd3078abb155740c94b8f736d1362df62127cd
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a direct link to a URL that is flagged as malicious by the ML classifier. The document body and extracted URLs suggest a lure for downloading game-related cheats or hacks, which is a common tactic for distributing malware. The presence of a 'download button' heuristic further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/free-minecraft-shaders-game-hack
    • http://sexythings.gr/images/free-roblox-outfits_GM431946152.pdf
    • http://sexythings.gr/images/coin-master-fan-page-facebook_GM406889139.pdf
    • http://sexythings.gr/images/free-robux-hack-generator_GM431946152.pdf
    • http://sexythings.gr/images/coin-master-free-cards-and-spin-link_GM406889139.pdf
    • http://sexythings.gr/images/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdf
    • http://sexythings.gr/images/how-to-get-free-cards-for-coin-master_GM406889139.pdf
    • http://sexythings.gr/images/rbxoffers-earn-free-robux_GM431946152.pdf
    • http://sexythings.gr/images/reddit-coin-master-free-spins_GM406889139.pdf
    • http://sexythings.gr/images/rare-free-links-to-coin-master_GM406889139.pdf
    • http://sexythings.gr/images/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdf
    • http://sexythings.gr/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://sexythings.gr/images/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdf
    • http://sexythings.gr/images/robloxfun-com-generator_GM431946152.pdf
    • http://sexythings.gr/images/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • http://sexythings.gr/images/free-coins-coin-master-iphone_GM406889139.pdf
    • http://sexythings.gr/images/coin-master-free-spins-blogspot_GM406889139.pdf
    • http://sexythings.gr/images/who-to-get-free-robux_GM431946152.pdf
    • http://sexythings.gr/images/minecraft-java-edition-free-trial_GM479516143.pdf
    • http://sexythings.gr/images/free-robux-real-working_GM431946152.pdf
    • http://sexythings.gr/images/roblox-re_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bad.bin
bbf1c4b1c849004c5e241148a235524682cc9131b9c993a1ab25ed424c57ec40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BAD 25264 bytes
font_01_sfnt_off00008491.bin
35d3f4bf4307bd8a3f315663bc97638986f3fc82832bfbc69b2a41c23e708d7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8491 17908 bytes

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