Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3f685bf96e18f5c…

MALICIOUS

PDF

42.3 KB Created: 2019-03-18 07:43:40 +03:00 Authoring application: TeX (via pdfTeX-0.13d)
MD5: 16ecc4539531d8c2d8dfbd1bc75a685a SHA-1: 2bc2f1939d398302fcc352b1f18f1adcc660dec5 SHA-256: c3f685bf96e18f5c2231115902081b82f851a3032761eda6e924c0a3a36f0149
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was not sufficiently readable to determine a specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9181

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://www.gorillawalker.com/anger-management-for-teens-proven-steps-to-help-a-teen.pdf
    • http://www.gorillawalker.com/the-permaculture-garden-kindle-edition.pdf
    • http://www.gorillawalker.com/notable-black-memphians.pdf
    • http://www.gorillawalker.com/lee-of-virginia-1642-1892-biographical-and-genealogical-sketches-of.pdf
    • http://www.gorillawalker.com/house-rules-a-joe-demarco-thriller.pdf
    • http://www.gorillawalker.com/easy-classical-duets-for-ukulele-piano-japanese-edition.pdf
    • http://www.gorillawalker.com/laugh-til-the-mascara-runs-2014-engagement-calendar.pdf
    • http://www.gorillawalker.com/holt-elements-of-literature-grammar-usage-and-mechanics-handbook-worksheets.pdf
    • http://www.gorillawalker.com/the-case-of-the-amorous-aunt-a-perry-mason-mystery.pdf
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    • http://www.gorillawalker.com/flirty-foursome-on-vacation.pdf
    • http://www.gorillawalker.com/teach-yourself-ms-word-97-for-windows-95-expert-user.pdf
    • http://www.gorillawalker.com/the-hannover-principles-design-for-sustainability-10th-anniversary-edition.pdf
    • http://www.gorillawalker.com/making-money-high-risk-high-reward-strategies-kindle-edition.pdf
    • http://www.gorillawalker.com/the-inequality-of-pay.pdf
    • http://www.gorillawalker.com/life-of-general-winfield-scott.pdf
    • http://www.gorillawalker.com/black-tornado-the-three-sieges-of-mumbai-26-11.pdf
    • http://www.gorillawalker.com/semper-fi-business-leadership-the-marine-corps-way.pdf
    • http://www.gorillawalker.com/in-love-forever-7-secrets-to-a-joyous-juicy-relationship.pdf
    • http://www.gorillawalker.com/phonologie-eine-einf-hrung-de-gruyter-studium-german-edition.pdf
    • http://www.gorillawalker.com/wales-churches-houses-castles.pdf
    • http://www.gorillawalker.com/the-eternal-dream.pdf
    • http://www.gorillawalker.com/ethical-responsibility-bonhoeffer-s-legacy-to-the-churches-toronto-studies.pdf
    • http://www.gorillawalker.com/lie-algebras-in-particle-physics-from-isospin-to-unified-theories.pdf
    • http://www.gorillawalker.com/part-xiv-of-book-iii-of-marino-sanuto-s-secrets.pdf
    • http://www.gorillawalker.com/femdom-society-3-female-domination-erotica-stories.pdf
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    • http://www.gorillawalker.com/rising-storm.pdf
    • http://www.gorillawalker.com/fruit-flush-3-day-detox-kindle-edition.pdf
    • http://www.gorillawalker.com/alas-de-mosca-para-angel-sopa-de-libros-spanish-edition.pdf
    • http://www.gorillawalker.com/the-complete-guide-to-option-selling-second-edition.pdf
    • http://www.gorillawalker.com/judo-and-bjj-boxset-the-ultimate-guide-to-beginning-judo.pdf
    • http://www.gorillawalker.com/bristol-and-gloucestershire-archaeological-society-transactions-1982-volume-c.pdf
    • http://www.gorillawalker.com/lover-eternal-black-dagger-brotherhood-book-2.pdf
    • http://www.gorillawalker.com/sula-8-proceedings-of-the-eighth-meeting-of-the-semantics.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

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