Malicious PDF — malware analysis report

Static analysis result for SHA-256 445ee2d1f0ea8416…

MALICIOUS

PDF

63.9 KB Created: 2020-11-29 21:00:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: f2fb3e2d8ca8f7c038dc9ec4cb48a4c5 SHA-1: c912514f6c49c36174ae651469fc3e4a16832ed4 SHA-256: 445ee2d1f0ea8416f9d6f64044c21ad280c48a25ccff400cf27fdaa1aa976d0f
256 Risk Score

Malware Insights

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

This PDF file is identified as a credential phishing lure, specifically impersonating LinkedIn to trick users into submitting their login details. The document contains numerous external links, many of which point to redirectors or other PDFs, suggesting a link farm or SEO abuse for phishing. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/xenemavurinap_jokepirewiteda_fijalezej_gemewije.pdf.
  • 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/123?utm_term=pronoun+shift+examples PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369336/normal_5f887fcf39022.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_5f86f5035ca95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465908/normal_5fb2cc2e18b7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365662/normal_5f873876604c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413231/normal_5fb3ff8bd62db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409256/normal_5fbecf5729bfe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420430/normal_5fae66f0c8765.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426686/normal_5fb7d61a201f7.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/xenemavurinap_jokepirewiteda_fijalezej_gemewije.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d8597d1-1133-4b59-a829-e8e7c5991fee/63405560481.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_off0000bc1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC1A 5208 bytes
SHA-256: 2a74cf89cec672c2540e0339739fa12f96f9c3ee58f3f99c786de70e4a1cc22a
font_01_sfnt_off0000cdae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDAE 10828 bytes
SHA-256: e053fc919a1560e83f58c69a87bf9ddcf4611542c107736d26c25ed91e80169c

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