Malicious PDF — malware analysis report

Static analysis result for SHA-256 064268da5b7f4648…

MALICIOUS

PDF

16.7 KB Created: 2019-04-30 02:50:21 +01:00 Authoring application: mPDF 5.7
MD5: ea11cd1f136db0f07c6ce5cdc1edc809 SHA-1: 127546775960fd66c1226a13865db7c46f817bfa SHA-256: 064268da5b7f4648e9162689557891e5edb21a8499ba8e6cd234855dbc2ecde2
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm, which is a common tactic for SEO spam or phishing. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were extracted, the presence of numerous external links suggests an attempt to redirect the user to malicious content or further stages of an attack, potentially involving spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9787

Heuristics 3

  • 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
  • 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 http://muicuiu.dumb1.com/2a00a04a06a03a08/DarkWolfe-Sons-of-de-Wolfe-de-Wolfe-Pack-9-by-Kathryn-Le-Veque.pdf
    • http://muicuiu.dumb1.com/2a00a04a06a03a05/Nighthawk-Sons-of-de-Wolfe-de-Wolfe-Pack-7-by-Kathryn-Le-Veque.pdf
    • http://muicuiu.dumb1.com/3a05a06a08a08a04/Archie-Meets-Nero-Wolfe-A-Prequel-to-Rex-Stout-s-Nero-Wolfe-Mysteries-Nero-Wolfe-Novels-by-Robert-Goldsborough-8-by-Robert-Goldsborough.pdf
    • http://muicuiu.dumb1.com/5a08a09a07a05a04/Sternenseher-Der-Clan-der-W-lfe-6-by-Kathryn-Lasky.pdf
    • http://muicuiu.dumb1.com/5a08a09a07a03a09/Der-Clan-der-W-lfe-4-Eisk-nig-by-Kathryn-Lasky.pdf
    • http://muicuiu.dumb1.com/3a00a01a06a00a00/Red-amp-Wolfe-Part-One-Red-amp-Wolfe-1-by-Ella-James.pdf
    • http://muicuiu.dumb1.com/3a09a04a06a06a06/Red-amp-Wolfe-Part-Four-Red-amp-Wolfe-4-by-Ella-James.pdf
    • http://muicuiu.dumb1.com/8a09a08a09a07a03/Waking-Wolfe-Scott-Wolfe-1-by-S-L-Shelton.pdf
    • http://muicuiu.dumb1.com/3a07a04a06a03a04/Wolfe-Winter-Big-Bad-Wolfe-5-by-Joan-Hohl.pdf
    • http://muicuiu.dumb1.com/8a00a09a06a06a06/Strong-Arm-Tactics-Wolfe-Pack-Book-1-by-Jody-Lynn-Nye.pdf
    • http://muicuiu.dumb1.com/2a05a08a04a01/The-Best-of-Gene-Wolfe-A-Definitive-Retrospective-of-His-Finest-Short-Fiction-by-Gene-Wolfe.pdf
    • http://muicuiu.dumb1.com/8a04a04a09a02a00/The-Haunting-of-Nathaniel-Wolfe-Nathaniel-Wolfe-1-by-Brian-Keaney.pdf
    • http://muicuiu.dumb1.com/6a00a02a07a09a07/The-5-Heads-of-Humbert-Wolfe-by-Humbert-Wolfe.pdf
    • http://muicuiu.dumb1.com/9a00a02a09a04a06/Memoirs-of-Theobald-Wolfe-Tone-by-Theobald-Wolfe-Tone.pdf
    • http://muicuiu.dumb1.com/2a07a02a04a01a09/Lespada-by-Kathryn-Le-Veque.pdf
    • http://muicuiu.dumb1.com/3a09a06a06a09a05/The-Questing-by-Kathryn-Le-Veque.pdf
    • http://muicuiu.dumb1.com/2a00a04a05a01a02/The-Forbidden-Highlands-by-Kathryn-Le-Veque.pdf
    • http://muicuiu.dumb1.com/4a07a05a01a03a01/The-Falls-of-Erith-by-Kathryn-Le-Veque.pdf
    • http://muicuiu.dumb1.com/2a07a02a02a02a08/A-Collection-of-Beginnings-by-Kathryn-Le-Veque.pdf
    • http://muicuiu.dumb1.com/4a00a00a02a09a01/The-Warrior-Poet-by-Kathryn-Le-Veque.pdf

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