Malicious PDF — malware analysis report

Static analysis result for SHA-256 6968369332244288…

MALICIOUS

PDF

71.5 KB Created: 2021-02-28 14:45:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 967ee34e379701eb2462ee71ae3964f3 SHA-1: 5138c6a570eebc1ecf90d5605a6101fff46dcf7e SHA-256: 696836933224428884684499adee73af914818328274283bbf7fb60c633d9cfc
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://gimoguvi.ru/wix?keyword=alpine+ktp-445+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4413112/normal_5feaf9c0eb5fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502268/normal_5fd8e7c588027.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/eYJiige/north_star_academy_hockey.pdfIn PDF document text
    • https://vubenazago.weebly.com/uploads/1/3/4/3/134357699/fuseralabegilug.pdfIn PDF document text
    • https://dosidebeg.weebly.com/uploads/1/3/5/3/135318632/807176.pdfIn PDF document text
    • https://cdn.sqhk.co/kosadara/ghgdghj/striker_shotgun_airsoft.pdfIn PDF document text
    • https://cdn.sqhk.co/xudevekelefe/gigVjgl/pifotevedejawet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385021/normal_6024c538c1b85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410030/normal_5fe95daa3898c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414341/normal_602353c62f34e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495251/normal_601a0fad1ae80.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelewexo/Egjc5oA/dark_sword_2.pdfIn PDF document text
    • https://cdn.sqhk.co/sejixikerut/QXiiduh/diaphragmatic_hernia_in_newborn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459170/normal_5fd1660a7e29f.pdfIn PDF document text
    • https://cdn.sqhk.co/baxotonad/hhhfihZ/ikea_brimnes_dresser_dimensions.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407777/normal_602cac8fae2dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dc30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC30 4988 bytes
SHA-256: d602165a39343143d6e6e8db3a20d3ee82eba50124ecee070f4c6c2f23331e43
font_01_sfnt_off0000ed2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED2E 10580 bytes
SHA-256: 94585e5a9c5d1a0b0bfd7c726633ded0de90c656a8ba19fdbee781e68217578d