Malicious PDF — malware analysis report

Static analysis result for SHA-256 a740ee0ea3f5960a…

MALICIOUS

PDF

58.2 KB Created: 2020-11-06 13:22:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 8aea19e530cfa17d46c48b2a07f6e2a5 SHA-1: a601b6ed814b5254341d8c7d0fa38665718f7c72 SHA-256: a740ee0ea3f5960aaa09e91da856b49ef1ab833d986b13494266ddb091cb7079
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://trafffi.ru/aws?keyword=parking+fury+unblocked+games PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368246/normal_5f881dce99751.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372982/normal_5f9bd16b2d8cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369797/normal_5f8d6138b9a06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380871/normal_5f9afd062b46e.pdfIn PDF document text
    • https://pakezumada.weebly.com/uploads/1/3/4/3/134368128/8107355.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368951/normal_5f8df84abfb60.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zewimu/tubemeg.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/dijajavijuvakijeleregugas.pdfIn PDF document text
    • https://s3.amazonaws.com/newopetusam/olympus_om-1_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/understanding_evidence-_based_public_health_policy.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/79094101698.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27e31d53-f58f-47cb-8654-c2e0fb8973ff/53529066844.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/390d3c44-d8bf-4f2a-af0e-ab97045060af/among_the_hidden_series.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E6 15236 bytes
SHA-256: 83e42495286a8d97964378697f1791f9fa9aceff70080ecbd041f9497457aa1a
font_01_sfnt_off0000a513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA513 5648 bytes
SHA-256: 13672250ac6e03ed4d25cc9cd6810f5716b570159d910b820a890eaf510a21ab
font_02_sfnt_off0000b843.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB843 10408 bytes
SHA-256: acdd2efe7e90eeeba002ef05201ff122b209616090fc89dc446189b92b8e2360