Malicious PDF — malware analysis report

Static analysis result for SHA-256 041f3eaf0ef7b41e…

MALICIOUS

PDF

73.6 KB Created: 2020-12-25 17:10:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 5da1989f8e5ebe7abc018f3d88114208 SHA-1: c89111595e1761e569ce51efd1fb6dcd7e912389 SHA-256: 041f3eaf0ef7b41e6adae7a9fa7f2393caa7f2a0e9ded84c982c1310bba447aa
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains numerous external links, many of which are part of an SEO link farm designed to redirect users. The primary malicious URL identified is 'https://traffnew.ru/strik?utm_term=olympics+2016+basketball+usa+vs+australia', which is likely used to deliver a phishing or malware payload.

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://traffnew.ru/strik?utm_term=olympics+2016+basketball+usa+vs+australia PDF link annotation
    • https://cdn.sqhk.co/zenetofuma/fjdKijK/dulajubadaxarovatab.pdfIn PDF document text
    • https://cdn.sqhk.co/dupeguwova/dge3Dge/31963908354.pdfIn PDF document text
    • https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/a2d2e94.pdfIn PDF document text
    • https://cdn.sqhk.co/bopesajan/ikCMjdz/dell_kb216_driver.pdfIn PDF document text
    • https://ruwuragawani.weebly.com/uploads/1/3/4/3/134383911/gegefowenam_pupokepinarije_widewusisobo.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/sivanira/tcoe_common_core_standards.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/rainbow_six_siege_aimbot_free_ps4.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/lifujosobaxadadetuxifi.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/eggo_mini_pancakes_walmart.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/terifajuzulisawofipixep.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/nibozexezawiwesafobave.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/odfw_fishing_report_central_oregon.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_off0000e160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE160 5952 bytes
SHA-256: baf9126df5f929133cd93efa7821641160259a027c0e4fc8f9ce486e79ebec86
font_01_sfnt_off0000f595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF595 10380 bytes
SHA-256: 25231cc6a8d0ab3a435d59593ee57cf798b13d1ac59b1f3378b17131055f24e9

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