Malicious PDF — malware analysis report

Static analysis result for SHA-256 3118dd31262125f4…

MALICIOUS

PDF

17.1 KB Created: 2019-04-29 23:28:42 +01:00 Authoring application: mPDF 5.7
MD5: a3cc4e4d2377800aa2483f584a3d839c SHA-1: 87259422d1ca10ac69c17bb0f9deea029b961349 SHA-256: 3118dd31262125f4eec54df39d49a41bfa2cf048ca23f3fbe32b82a6b54087f6
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the specific intent beyond linking to other PDFs is unclear due to the lack of executable scripts or clear document body text, the sheer volume of links suggests a malicious distribution or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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://loaminoo.linkpc.net/3098093091093092/Blood-Red-Desert-Sand-The-British-Invasions-of-Egypt-and-the-Sudan-1882-98-Cassell-Military-Trade-Books-by-Michael-Barthorp.pdf
    • http://loaminoo.linkpc.net/3098095097091094/The-Zulu-War-Isandhlwana-to-Ulundi-by-Michael-Barthorp.pdf
    • http://loaminoo.linkpc.net/5096097099099099/Water-Civilisation-and-Power-in-Sudan-The-Political-Economy-of-Military-Islamist-State-Building-by-Harry-Verhoeven.pdf
    • http://loaminoo.linkpc.net/5092093090098091/Desert-God-Ancient-Egypt-5-by-Wilbur-Smith.pdf
    • http://loaminoo.linkpc.net/2097097096091091/Lions-of-the-Desert-Egypt-Trilogy-2-by-Linda-Lee-Chaikin.pdf
    • http://loaminoo.linkpc.net/5099096097099090/Secrets-of-the-Desert-Judge-of-Egypt-2-by-Christian-Jacq.pdf
    • http://loaminoo.linkpc.net/4090099090095098/The-Physics-of-Blown-Sand-and-Desert-Dunes-by-R-A-Bagnold.pdf
    • http://loaminoo.linkpc.net/5090092094096098/The-British-Museum-Concise-Introduction-to-Ancient-Egypt-by-T-G-H-James.pdf
    • http://loaminoo.linkpc.net/5091095099095097/British-Military-Intelligence-In-The-Crimean-War-1854-1856-by-Stephen-M-Harris.pdf
    • http://loaminoo.linkpc.net/5090092099094098/British-Museum-Dictionary-of-Ancient-Egypt-by-Ian-Shaw-Paul-Nicholson.pdf
    • http://loaminoo.linkpc.net/2095099093096/Books-of-Blood-Volume-One-Books-of-Blood-1-by-Clive-Barker.pdf
    • http://loaminoo.linkpc.net/8097090094094096/Auster-A-Brief-History-of-the-Auster-Aircraft-in-British-Military-Service-by-Barry-Ketley.pdf
    • http://loaminoo.linkpc.net/3090098093092/Blood-Trade-by-Faith-Hunter.pdf
    • http://loaminoo.linkpc.net/4095098091097092/Blood-And-Sand-by-Rosemary-Sutcliff.pdf
    • http://loaminoo.linkpc.net/8091096091096/Blood-and-Sand-by-Damien-Graves.pdf
    • http://loaminoo.linkpc.net/1097098099094099/Blood-on-the-Sand-Z-Plan-1-by-Mikhail-Lerma.pdf
    • http://loaminoo.linkpc.net/4094093095093095/Zendar-A-Tale-of-Blood-and-Sand-by-K-T-Munson.pdf
    • http://loaminoo.linkpc.net/1096091094097095/Origins-Blood-in-the-Sand-by-Candace-L-Bowser.pdf
    • http://loaminoo.linkpc.net/2097097099091099/Blood-in-the-Sand-Sanguis-Noctis-2-by-Robin-Saxon.pdf
    • http://loaminoo.linkpc.net/5099094094090092/Blood-and-Sand-Elemental-World-2-by-Elizabeth-Hunter.pdf
    • http://loaminoo.linkpc.net/4

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