Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e8f8a86c14e8d46…

MALICIOUS

PDF

40.7 KB Created: 2020-10-28 10:29:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ca1e43a6db0bd615d8eedaf7087b9550 SHA-1: a33fd4b6a437a1b13dbf3f903a7abb4ffac998ba SHA-256: 6e8f8a86c14e8d46fe7322f1e6deed009a8a90596820bf0c6f03e2142a3caf1b
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/strik?keyword=lego+cargo+train+7939 In PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/roruj-fegedevovelere-zexomojikazi-rewubujelem.pdfIn PDF document text
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/dff7ffa46571d3.pdfIn PDF document text
    • https://wazuwivanesigov.weebly.com/uploads/1/3/4/4/134431766/a5eb6.pdfIn PDF document text
    • https://bokixewabukogu.weebly.com/uploads/1/3/4/3/134341992/9dc7e70a0a2.pdfIn PDF document text
    • https://gikanirirexenad.weebly.com/uploads/1/3/0/7/130776133/2331321.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/susopuzupure/gutigoj.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/mogasaraz.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/mukidotakulejodedo.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/application_for_schengen_visa_hungary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c94e2a58-a1e4-49ee-997f-3a0451689721/bazek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a676d4fa-e56b-46e7-a996-e43b260fa820/16952095463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/2163/7035/files/62084791633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/6894/7108/files/complainte_de_la_butte_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8339/1660/files/chinese_repeating_crossbow_history.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5126/8288/files/discriminant_analysis_using_spss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/gift_for_a_secret_santa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0390/6717/files/90711399559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/4152/8257/files/8107571891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2991/1957/files/android_unbindservice_not_working.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1673/0799/files/wifijetatemu.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5071 4884 bytes
SHA-256: f21f92de94aaae21104db709fb02cace37041ce3bfc2f51926cf6cd108fe33f1
font_01_sfnt_off00006122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6122 10984 bytes
SHA-256: ad07e28d2847607f51a2942c25b1da8bc412f11db918deb0eb500eca1760472e
font_02_sfnt_off00008657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8657 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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