Malicious PDF — malware analysis report

Static analysis result for SHA-256 a674802aa189bf6f…

MALICIOUS

PDF

73.9 KB Created: 2021-03-08 06:02:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 634f80ee152802e22e587504422a3318 SHA-1: 27fd08718cffca9b9ac7bfbf306b3163216c9729 SHA-256: a674802aa189bf6f631f241397ed5043e72ee8ed2b1e73060e19394a0d54ccd1
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ponafet.ru/wix?keyword=evenflo+embrace+car+seat+base PDF link annotation
    • http://glossywp.online/how_to_get_a_parrot_on_your_shouldern6go8.pdfIn PDF document text
    • http://doorstepcomputers.com/lokafazeledoxasibomitejipgq5yc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380707/normal_5fd626546e431.pdfIn PDF document text
    • https://cdn.sqhk.co/xomatujod/phjpdwz/bavuwetatatalupofanokar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481522/normal_5ff60e3c3081a.pdfIn PDF document text
    • http://tersq.space/jigepesewixalafulure86cka.pdfIn PDF document text
    • http://priz24.site/fun_football_games_for_5_year_oldsxuy22.pdfIn PDF document text
    • https://cdn.sqhk.co/bapuwanuvadi/f7HUN6w/12149052272.pdfIn PDF document text
    • http://vurovolapoza.mygamesonline.org/the_quran_project_english_translation.pdfIn PDF document text
    • http://qwertyujg.xyz/wuponefoxedinetimegqt1t.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/A1pOhec/bluestone_restaurant_nyc.pdfIn PDF document text
    • http://pawomodom.medianewsonline.com/53564126647.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/Boibcjh/republique_bananiere_synonyme.pdfIn PDF document text
    • http://lukisasore.mywebcommunity.org/jenebomadijodip.pdfIn PDF document text
    • http://anbieterbewertung-autoscoutch.com/where_is_the_filter_on_my_samsung_top_loader_washing_machineb23ri.pdfIn PDF document text
    • http://deemonatrafik.xyz/6511218572788204.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/sap_vendor_contact_person_email_address_tablebrtnh.pdfIn PDF document text
    • http://summer-italy.fun/salajumezabulijibwl3ec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369146/normal_5ffa7c5c11961.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://resisimokopi.epizy.com/17672896512.pdfIn PDF document text
    • http://suraweko.epizy.com/22413056779.pdfIn PDF document text
    • http://fazobelo.onlinewebshop.net/35163896457.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_off0000e4c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C5 5184 bytes
SHA-256: 27135644b0e830554bcaa4bfc48df471936c79b4dca00c5600632754fef0d22b
font_01_sfnt_off0000f65b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65B 10332 bytes
SHA-256: 7b7a009e0f73efae60d09ab56f8447c3e88c396810e1c64723c385a174036304

Open this report in the interactive analyzer, or submit your own file for analysis.