Malicious PDF — malware analysis report

Static analysis result for SHA-256 afd7a51e026d390a…

MALICIOUS

PDF

64.3 KB Created: 2021-01-25 01:01:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 68cd4093abb4bd69ed6b328b6166b974 SHA-1: b2d52ecd8297158f7527d47118c38aa6b6e504a9 SHA-256: afd7a51e026d390aa2def27575946e0db146b98b7bd9ce1119b5971c71dfebf0
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://traffnew.ru/123?utm_term=st.+john+ambulance+first+aid+pocket+guide+pdf PDF link annotation
    • http://vekenuv.iblogger.org/dosezujekotunijidu.pdfIn PDF document text
    • http://jodopafipunew.22web.org/cvc_word_cards.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409797/normal_5ff5e9a4d02c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382406/normal_60021644414a7.pdfIn PDF document text
    • http://zupubovogigu.iblogger.org/kepesi.pdfIn PDF document text
    • http://adv-workshop.site/cut_rope_for_princessesqa1uo.pdfIn PDF document text
    • http://mmmmmme.space/dowupiks151.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388427/normal_5fcda6b99ff10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443809/normal_5fe008821d0a4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478968/normal_5fccc39f23e0e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392877/normal_5fdf089cf1c7a.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/rayman_adventures_keine_incrediballsf5iam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368731/normal_5fe191475973c.pdfIn PDF document text
    • http://erogan-encolumbia.site/tool_kit_for_home_with_drill_machine9rbnr.pdfIn PDF document text
    • http://ipatovaalena.ru/99946919391v0qbx.pdfIn PDF document text
    • http://fullstacket.online/774292577317rcj4.pdfIn PDF document text
    • http://free-at.pro/lowejesuvijub0slv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sakupoje.epizy.com/satesumazeremutatudufale.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_off0000bce0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCE0 5984 bytes
SHA-256: 63329adce3f6e072612741d3ff0be42ee1421af120bd26c6a569945eda641303
font_01_sfnt_off0000d11f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD11F 10132 bytes
SHA-256: 77acd18e11fcdb01e152e332cbb9e11d228c1358292a7ef1e0bb09ed1bb7e0aa