Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e68f218b9a44293…

MALICIOUS

PDF

42.3 KB Created: 2020-08-17 16:33:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 925be3a196059ff98b1313282c7ed9c3 SHA-1: e18c70c72986c0d64f8117bb35c9f66a858d707b SHA-256: 6e68f218b9a4429338517b6f87f5f9eb166e9bd985bf31fbdae6f21b189cacc0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to redirector infrastructure. The primary malicious URL identified is `https://ttraff.ru/pify?keyword=definition+nonconformity+science`, which is flagged as a malicious redirector. This suggests a phishing or scam attempt, likely delivered as a spearphishing attachment, aiming to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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://ttraff.ru/pify?keyword=definition+nonconformity+science In PDF document text
    • http://files.olympusvillas.com/uploads/1/3/0/7/130776655/lajeruxonosufo.pdfIn PDF document text
    • http://miwuvolik.emmett-technique.us/uploads/1/3/0/8/130813780/7b024596d2925a9.pdfIn PDF document text
    • http://nipab.jeanstandmeministries.com/uploads/1/3/1/4/131455636/9683046.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5935/5556/files/57841457033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2737/1931/files/93394160870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7474/7558/files/92501219303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5660/4070/files/college_admission_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7671/3637/files/separador_de_paginas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2030/3011/files/58162337563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6577/0135/files/karututorowidik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5883/9198/files/fugukibaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4088/9240/files/91222328432.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6445 4888 bytes
SHA-256: 0a639c6f1e51cd819d0b56c1af3b0352f1b7c326cc8fc2a1bd38094b6d166cd1
font_01_sfnt_off000074e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E1 12376 bytes
SHA-256: 2ce50d1ca08cff52ce58e6bb237f42a095a37a5684e2d79cc72a8905b32d7a30

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