Malicious PDF — malware analysis report

Static analysis result for SHA-256 000ac5df85cb7d61…

MALICIOUS

PDF

16.7 KB Created: 2019-04-30 03:39:50 +01:00 Authoring application: mPDF 5.7 First seen: 2021-05-29
MD5: f4e7ddb436588257945b578e458dde1a SHA-1: f1f5bf09727b0125a4e34b47b04afd5745b7cf99 SHA-256: 000ac5df85cb7d6190000e073d616d384d4e1751a0c62af128e825b3535cf8fa
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the embedded URLs are the primary indicators of malicious intent, likely leading to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

Heuristics 2

  • 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.
  • 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://xiixmcuin.linkpc.net/4201202208207202/MYLES-UNDERCOVER---four-adventures-for-the-actor-turned-cop-by-Mark-Capell.pdf In PDF document text
    • http://xiixmcuin.linkpc.net/4208205205206209/Run-Run-Run-by-Mark-Capell.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/9202206205202209/The-Lost-Pet-Chronicles-Adventures-of-a-K-9-Cop-Turned-Pet-Detective-by-Kat-Albrecht.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/3203205201200200/The-Spy-Wore-Red-My-Adventures-as-an-Undercover-Agent-in-World-War-II-by-Aline-Countess-of-Romanones.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/7205203209208202/The-Adventures-of-Huckleberry-Finn-The-Adventures-of-Tom-and-Huck-2-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/2208206207209202/The-Mis-adventures-of-a-Teenage-Mark-by-Mark-Alders.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/3203201200204205/Mississippi-Writings-The-Adventures-of-Tom-Sawyer-Life-on-the-Mississippi-Adventures-of-Huckleberry-Finn-Pudd-nhead-Wilson-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/9206202200202209/The-Adventures-of-Tom-Sawyer-by-Mark-Twain-Illustrated-by-Norman-Rockwell-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/6205201208204207/Adventures-of-Huckleberry-Finn-Mark-Twain-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/8204209209203200/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/3203206207204205/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/8204205206206203/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/1201200205206209203/The-Adventures-of-Blizzard-by-Mark-Cartwright.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/5206201207206209/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/6204201201200204/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/1201207202202205201/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/1200205202201204206/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/9202207207208206/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/5206207209208201/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text
    • http://xiixmcuin.linkpc.net/8203203205206204/The-Adventures-of-Tom-Sawyer-by-Mark-Twain.pdfIn PDF document text

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