Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a68485803556dd0…

MALICIOUS

PDF

73.5 KB Created: 2021-02-08 12:50:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 801088e1671e18836d8f6aa4bba08705 SHA-1: 122ccb44ddb200c3bf0f7771e4d746913fda3fe5 SHA-256: 5a68485803556dd0343917ec33c828dad0231423edb084b10e5d4d219bce99cb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/wb?keyword=bugatti%20veyron%20car PDF link annotation
    • http://nufurimuler.iblogger.org/badidawelusefinuxi.pdfIn PDF document text
    • http://lifokuvaxodime.iblogger.org/84680094653.pdfIn PDF document text
    • http://jisuwadizo.22web.org/burna_boy_killin_dem_mp4_video.pdfIn PDF document text
    • http://fasusugexewi.22web.org/63138839916.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465537/normal_5ff2752b467b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374986/normal_600a85185112a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486367/normal_5fc7f3b0c4432.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/rotowan/destiny_2_guide_to_900.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/13010711591.pdfIn PDF document text
    • http://xabasib.rf.gd/refudaxareb.pdfIn PDF document text
    • http://kodadus.epizy.com/knowledge_base_article_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/8897762674.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/wegolag.pdfIn PDF document text
    • http://tujefozumuresul.epizy.com/zefub.pdfIn PDF document text
    • http://fukokikedusej.epizy.com/31797447277.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE302 4968 bytes
SHA-256: 439d417eef83be3a1aa0d8040738bd89ef5fba4caaaad5eb7b8765d895bb78b1
font_01_sfnt_off0000f411.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF411 11064 bytes
SHA-256: 5a840a7966bc6e9d4f86b5c96015c1fc222d96f1f2a5e2a7d715bdd1e75c59d5