Malicious PDF — malware analysis report

Static analysis result for SHA-256 6efc4d141a1da5f8…

MALICIOUS

PDF

66.3 KB Created: 2021-02-25 09:23:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 15af370ada88d0db9fe033e85feecebd SHA-1: c0555bf879bc5398afcf29408b1b69c89205953c SHA-256: 6efc4d141a1da5f8abea2cc571bf29ac7603052c9858a63e53ae3ab6383667c4
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://baarspo.ru/award?keyword=a+death+in+the+family+author+crossword+clue PDF link annotation
    • http://lenuvivureropi.scienceontheweb.net/badger_insinkerator_15ss_3_4_hp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405904/normal_5ff9db4eec20f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423772/normal_6032b3a0d7e0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494868/normal_5fdffd6bd8f79.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490534/normal_5fc60fb1438f0.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/46311543345.pdfIn PDF document text
    • https://cdn.sqhk.co/fakomuse/ifihCgd/civil_war_battles_in_raleigh_nc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377678/normal_5fcd7db26dbb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480904/normal_600ab5e19f54a.pdfIn PDF document text
    • https://cdn.sqhk.co/fofateze/AzRhdhd/bounce_tales_original_apk_download_for_jio_phone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420013/normal_60132018145ce.pdfIn PDF document text
    • https://cdn.sqhk.co/pivatiwon/aPhdhax/91454374179.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416932/normal_5fefcca13a054.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490757/normal_6027aa09a2dd0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413227/normal_6011efedb887e.pdfIn PDF document text
    • https://cdn.sqhk.co/jofijoju/hxTiehi/17152165735.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373016/normal_5fd879c2d7f6a.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/ibbfgjP/27987252841.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nufiwimuzobo.onlinewebshop.net/calculadora_casio_dr-210tm_manual.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_off0000c699.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC699 5444 bytes
SHA-256: 3a518bbe6e0352a2fa6b6fe9f942d8580d90920136af543cc56bdd6e0ca9d228
font_01_sfnt_off0000d90e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD90E 10184 bytes
SHA-256: df06be38e066ebc8c31d652a5943fdd74f1268fcd03932029174277b76b07a6b

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