Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c68474eebd085f…

MALICIOUS

PDF

74.9 KB Created: 2021-03-03 04:46:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: a0f5aff19a159df5350baab649d9c673 SHA-1: 6fa178a92214c46a87c7f1b31e1f7dda97145ee6 SHA-256: c0c68474eebd085f51dac0cee93926063355ee6da30fc62ca3ff95c417743770
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains numerous external links, many of which are disguised as firmware downloads or free resources. The primary URL, 'https://resalured.ru/strik?utm_term=d%2527link+dns+320l+firmware+download', acts as a redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or trojan delivery.

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://resalured.ru/strik?utm_term=d%2527link+dns+320l+firmware+download PDF link annotation
    • https://livadekawa.weebly.com/uploads/1/3/5/3/135317457/ba681.pdfIn PDF document text
    • http://cg-designer.xyz/3391136033e3q96.pdfIn PDF document text
    • http://wide-do.top/history_of_hinduism_bookrdyq0.pdfIn PDF document text
    • http://hydra.moscow/dabokarqtbdg.pdfIn PDF document text
    • https://xanuzejo.weebly.com/uploads/1/3/1/6/131637194/4b6cb3164.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413707/normal_5ff7742dbb56c.pdfIn PDF document text
    • http://helpcontactform.com/pizemididggbw6.pdfIn PDF document text
    • https://kevosenebiv.weebly.com/uploads/1/3/1/8/131871602/807de.pdfIn PDF document text
    • http://opsnatur.fun/xagajesisejed0c1m.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zutugidod.onlinewebshop.net/4258190056.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/weather_report_lapeer_mi.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/fevuwaninosagalag.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/international_trade_ppt_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/nuvafuradogitinejumife.pdfIn PDF document text
    • http://tafiwepamubov.atwebpages.com/71994580877.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_off0000e435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE435 5680 bytes
SHA-256: e1caebf64470e9559d2d0e6e1145af72a238b160f14896e8e9602ecbe6ccbb96
font_01_sfnt_off0000f791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF791 11300 bytes
SHA-256: 4a6ddb73deec8d9983a44952b9de2a5f6f9c5ab31034b935c4d5719d26568c1c

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