Malicious PDF — malware analysis report

Static analysis result for SHA-256 443162e0bed3d795…

MALICIOUS

PDF

85.7 KB Created: 2021-04-25 14:14:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bbac6c9c1ef0118d2aecfd0d3acea88f SHA-1: df9fc4ebf99932e6f860216ea2ddeb0a3c547463 SHA-256: 443162e0bed3d795622db46fa2905aeffea8c3658cf7f2e645cb65c7f028264e
212 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a phishing or malware distribution attempt. It contains heuristics related to SEO link farming and urgency lures, suggesting it's designed to trick users into clicking external links. The primary malicious link identified is https://seumenha.ru/strik?utm_term=what+charger+does+jbl+xtreme+use, which likely serves as a redirector to a phishing page or a malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 8

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://seumenha.ru/strik?utm_term=what+charger+does+jbl+xtreme+use PDF link annotation
    • http://pusewuvi.medianewsonline.com/mofeluju.pdfIn PDF document text
    • http://rasipafus.getenjoyment.net/lewivokud.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/sisitigawoderuzaludikeze.pdfIn PDF document text
    • https://rusakubasarozu.weebly.com/uploads/1/3/4/2/134266120/zipojiv.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/45324968524.pdfIn PDF document text
    • https://s3.amazonaws.com/dusined/gcse_science_questions_with_answers.pdfIn PDF document text
    • http://lazokiwumemo.mygamesonline.org/oxford_discover_3_workbook.pdfIn PDF document text
    • http://moxawunanenubop.sportsontheweb.net/adjectives_english_french.pdfIn PDF document text
    • https://lififamofupuge.weebly.com/uploads/1/3/4/3/134317858/lemobepemibejajaku.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/71321295730.pdfIn PDF document text
    • http://zagavexakagin.mypressonline.com/hepatic_encephalopathy_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/tunepabazixesivajowiku.pdfIn PDF document text
    • https://dutajedi.weebly.com/uploads/1/3/5/9/135964159/3180220.pdfIn PDF document text
    • http://gixitetopes.scienceontheweb.net/kezotowor.pdfIn PDF document text
    • https://zupalopozaguri.weebly.com/uploads/1/3/2/3/132302876/34a2f2b2b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://161abad2-7de2-49bb-9904-d6e2a620a662.filesusr.com/ugd/2eec94_6f5d3564ad3d4acca883d9a9b10e8110.pdf?index=trueIn PDF document text
    • http://bumurulepowele.myartsonline.com/rains_of_castamere_violin_sheet_music.pdfIn PDF document text
    • https://d4e73f68-9870-4c81-be0c-0a6dd7607cd2.filesusr.com/ugd/6f53d7_2dd102bd3fd24c21bf79cdd591c9c600.pdf?index=trueIn PDF document text
    • https://3e1af3dc-cf37-4f58-935d-0a6065bc5ce9.filesusr.com/ugd/3ca236_455f5b32c30e4b31abc636af613bac55.pdf?index=trueIn PDF document text
    • http://galojuxutiwas.epizy.com/93965568458.pdfIn PDF document text
    • https://e7f45dcf-1957-410e-85b1-216e85a225c4.filesusr.com/ugd/a2c2bc_07feb9eed13246519eb0be8db277b4c1.pdf?index=trueIn PDF document text
    • http://xurosuforudev.atwebpages.com/55446397685.pdfIn PDF document text
    • http://wamulax.epizy.com/pivumosagulujireg.pdfIn PDF document text
    • http://xexovigir.epizy.com/firisabilavamuzuribug.pdfIn PDF document text
    • https://459ec6dd-5b69-4322-a182-74abbfaa0e48.filesusr.com/ugd/221eaa_0fd6eb6c2e554cc4a8679b405fe8f200.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4EA 5652 bytes
SHA-256: 13477c35829ab650e4c3941858c46ebffae7422919621de420c7e1b9b6ef0b2b
font_01_sfnt_off00010806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10806 14252 bytes
SHA-256: 860aa0293430ff754ce36db8f26c716538659e05f2761b9e5ec6248819c86aef
font_02_sfnt_off00013480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13480 16064 bytes
SHA-256: 1c7796c209fc496375b69af1391759dc009ec5e11a9b660bb62820890f2e1d74