Malicious PDF — malware analysis report

Static analysis result for SHA-256 a03076606e2f2970…

MALICIOUS

PDF

62.0 KB Created: 2020-12-18 06:55:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: cdbad5b6ba2b23a8fa30fb00c67aa85d SHA-1: 68829d7895f29629632656891f4d8dff2daed418 SHA-256: a03076606e2f2970a467ec32d6f04a8c9d4516d776a35b78ae79e486c456c569
244 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to disposable hosting and redirector infrastructure, indicating a link farm designed to distribute malicious content. The primary redirector URL is https://traffmen.ru/strik?utm_term=mary+kay+precios+argentina, which is flagged as malicious. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffmen.ru/strik?utm_term=mary+kay+precios+argentina In PDF document text
    • https://cdn-cms.f-static.net/uploads/4456372/normal_5fba9a7eb0843.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423171/normal_5fda7f9116c0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391898/normal_5f951fcf1fc93.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458389/normal_5fc44dba50888.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372673/normal_5f93c1a285e44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369305/normal_5f9587b157125.pdfIn PDF document text
    • https://debuvubuni.weebly.com/uploads/1/3/4/8/134846467/rajasolat-luloz.pdfIn PDF document text
    • https://bajusumuke.weebly.com/uploads/1/3/2/7/132741128/09d6583.pdfIn PDF document text
    • https://wisapemewe.weebly.com/uploads/1/3/4/7/134713478/0bf62d113394f.pdfIn PDF document text
    • https://vixodago.weebly.com/uploads/1/3/4/7/134716619/091bde94bf.pdfIn PDF document text
    • https://tilideru.weebly.com/uploads/1/3/4/5/134589764/gazumad-wudoporis-dasoxalilomadid.pdfIn PDF document text
    • https://sugemisikuwev.weebly.com/uploads/1/3/1/8/131856456/fosoru.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/gezetega/ranod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fb703cb-2e16-4858-a90a-91df3505ffd7/dragon_language_alphabet.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/82801980125.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_off0000b870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB870 5240 bytes
SHA-256: 270dbcecf3aadddaffaa9867e3e3ce6ffb729b7eaa91afc69635057a787ddecb
font_01_sfnt_off0000ca6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA6B 9700 bytes
SHA-256: e5c31144cc67949be34c87e2073487d62ac7a727ab9cb8aa83b29be374c131e1

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