Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a217e29fb019af7…

MALICIOUS

PDF

71.5 KB Created: 2021-03-03 02:40:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0c5e44d8b0f56aabe212613db7cdf4f4 SHA-1: ceed80ccfb0433d8a7132d86988a73b5cf1556e7 SHA-256: 6a217e29fb019af72fed14ea8f610123c275e3c0fecc6b883945aad4122211c5
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://baarspo.ru/award?keyword=how+to+set+up+ashford+traditional+spinning+wheel PDF link annotation
    • http://frontglass.xyz/kegawuzonafefatet4cdgw.pdfIn PDF document text
    • http://reduslim-buy.site/nosibepokebumewufmzcxj.pdfIn PDF document text
    • https://cdn.sqhk.co/nejajevafode/VCjdgi5/remaved.pdfIn PDF document text
    • http://nasufulorejuwe.mywebcommunity.org/the_maze_runner_death_cure_movie_download_in_hindi.pdfIn PDF document text
    • https://lezogifivejuz.weebly.com/uploads/1/3/2/6/132682585/1e1ec8d99.pdfIn PDF document text
    • http://findattime.com/gejevu4q8d.pdfIn PDF document text
    • https://cdn.sqhk.co/vagofedewat/jc2gigc/vocal_trainer_sing_better_full_apk.pdfIn PDF document text
    • https://simebofes.weebly.com/uploads/1/3/1/4/131438459/af1aa0b488f6eff.pdfIn PDF document text
    • http://fasekafalig.scienceontheweb.net/xarez.pdfIn PDF document text
    • http://interior.estate/how_many_questions_in_frm_level_1835q9.pdfIn PDF document text
    • http://dosaxixapaxa.medianewsonline.com/sezamupojegegof.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/lezerawe/54779343075.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/format_date_anglais_us.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/research_on_problem_solving_in_mathematics.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/7212134312.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/cnet_s_free_vpn.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/cydia_free_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/rixugefuvigugogodeni.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/misexipujewe.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/6501641796.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_off0000dbeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBEB 5356 bytes
SHA-256: 8aea3e15dcfd7d63ba55970145dfa60a73f484c60121287b1e363f72d69ecc5c
font_01_sfnt_off0000ee31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE31 9972 bytes
SHA-256: c4d3dc8ec066f2c1a4315865e397804d44c650aebcc4e20a1f20f487474f7b9f

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