Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5a5c4b174f01c94…

MALICIOUS

PDF

43.6 KB Created: 2019-01-06 08:02:13 +03:00 Authoring application: dvips 5.72 Copyright 1997 Radical Eye Software (www.radicaleye.com) (via Acrobat Distiller 5.0.5 (Windows))
MD5: 5a8a067baa984be3336bb36498a077f4 SHA-1: 9960ff19ed5b27be2c7c2f5f10139405d95ff189 SHA-256: d5a5c4b174f01c9414a6644ad1d65bffce2b61ed99e77de25aa80d42e9437abc
60 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, primarily hosted on www.gorillawalker.com. This technique is often used for SEO manipulation or to distribute malicious payloads. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific intent beyond link distribution.

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/pilates-para-adelgazar-pilates-for-weight-loss-spanish-edition.pdf
    • http://www.gorillawalker.com/the-best-kept-secret-to-neck-and-back-pain-relief.pdf
    • http://www.gorillawalker.com/proverbios-31-descubre-los-tesoros-de-una-mujer-virtuosa-una.pdf
    • http://www.gorillawalker.com/finding-a-lasting-love-friendship-romance-commitment.pdf
    • http://www.gorillawalker.com/sherwood-anderson-and-other-famous-creoles.pdf
    • http://www.gorillawalker.com/exploring-world-mission-context-and-challenges-paperback.pdf
    • http://www.gorillawalker.com/computer-vision-accv-2014-workshops-singapore-singapore-november-1-2.pdf
    • http://www.gorillawalker.com/cuadro-de-mando-retail-los-indicadores-clave-de-los-comercios.pdf
    • http://www.gorillawalker.com/national-geographic-magazine-april-1962-vol-121-no-4.pdf
    • http://www.gorillawalker.com/taunton-s-complete-illustrated-guide-to-using-woodworking-tools-complete.pdf
    • http://www.gorillawalker.com/pop-rock-easy-piano-budget-books.pdf
    • http://www.gorillawalker.com/map-s-guidebook-to-delhi-city-map-1-30-000.pdf
    • http://www.gorillawalker.com/yamaha-band-student-book-1-flute-yamaha-band-method.pdf
    • http://www.gorillawalker.com/kingdoms-and-domains-an-illustrated-guide-to-the-phyla-of.pdf
    • http://www.gorillawalker.com/bass-clef-piano-or-cello-note-locator-sight-reading-music.pdf
    • http://www.gorillawalker.com/cut-the-rope-2-game-guide-unabridged-audible-audio-edition.pdf
    • http://www.gorillawalker.com/signing-smart-my-first-signs.pdf
    • http://www.gorillawalker.com/canadian-squadrons-in-coastal-command.pdf
    • http://www.gorillawalker.com/a-chakra-kundalini-workbook-psycho-spiritual-techniques-for-health-rejuvenation.pdf
    • http://www.gorillawalker.com/the-edens-family-southwest-cuisine-cookbook.pdf
    • http://www.gorillawalker.com/memory-dump-analysis-anthology-volume-5.pdf
    • http://www.gorillawalker.com/chaos-ii.pdf
    • http://www.gorillawalker.com/introduction-to-cryptography-with-mathematical-foundations-and-computer-implementations-discrete.pdf
    • http://www.gorillawalker.com/calculators-printing-and-display.pdf
    • http://www.gorillawalker.com/uchinaanchu-diaspora-memories-continuities-and-constructions-social-process-in-hawai.pdf
    • http://www.gorillawalker.com/the-doctor-s-erotic-house-call.pdf
    • http://www.gorillawalker.com/shetland-islands-pilot.pdf
    • http://www.gorillawalker.com/zimbabwe-monomatapa-culture-in-southeast-africa.pdf
    • http://www.gorillawalker.com/a-cabinet-of-roman-curiosities-strange-tales-and-surprising-facts.pdf
    • http://www.gorillawalker.com/espresate-level-3-student-edition-on-cd-rom.pdf
    • http://www.gorillawalker.com/medizinische-bildverarbeitung-bildanalyse-mustererkennung-und-visualisierung-f-r-die-computergest.pdf
    • http://www.gorillawalker.com/just-a-classic-minute-40th-anniversary-collection-unabridged-audible-audio.pdf
    • http://www.gorillawalker.com/sowing-the-wind-the-seeds-of-conflict-in-the-middle.pdf
    • http://www.gorillawalker.com/operation-endurance-when-the-mission-ends.pdf
    • http://www.gorillawalker.com/aces-of-jagdgeschwader-nr-iii-aircraft-of-the-aces.pdf
    • http://www.gorillawalker.com/polymer-clay-for-the-first-time.pdf
    • http://www.gorillawalker.com/linguistic-diversity-oxford-linguistics.pdf
    • http://www.gorillawalker.com/how-to-last-longer-in-bed-your-guide-to-mind.pdf
    • http://www.gorillawalker.com/analytical-psychology-in-a-changing-world-the-search-for-self.pdf
    • http://www.gorillawalker.com/ufos-fact-or-fiction-pb.pdf
    • http://www.gori
    • 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_000_off00000209.js
11ddef4698f110446bae7195c8e5f8d541c8b9481817f6adb574934baa36a476		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x209 13299 bytes

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