Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe03092178f93664…

MALICIOUS

PDF

31.4 KB Created: 2020-08-14 10:26:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 288303ac9bebe12286d2015ea27065ff SHA-1: 5f209c43fec92b8593de93ec6a8d418cc8ad5b75 SHA-256: fe03092178f936643baf4704f6c82474d392127b937d0d2ee9599d7b0b59eb35
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically the URL https://ttraff.ru/wb?keyword=ethyl%20alcohol%20msds%20pdf. This is supported by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and contains embedded URLs, further supporting the malicious intent.

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/wb?keyword=ethyl%20alcohol%20msds%20pdf In PDF document text
    • http://xadav.zakariyakhunji.com/uploads/1/3/1/6/131606349/8b31f33.pdfIn PDF document text
    • http://files.larosaparentcoach.com/uploads/1/3/0/8/130814297/luwabuvama-nuwipag-febazomanedod-nabidajaf.pdfIn PDF document text
    • http://manoxat.nanaimohospiceshoppe.com/uploads/1/3/0/8/130815017/dagigujedemilewabuvi.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/1/0433/8378/3575/files/peraxewuwujuzoziza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8338/2427/files/54345775574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9817/7693/files/mia_mcreynolds_twitter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0886/8008/files/guwuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8392/1563/files/28303993227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9345/1159/files/zasoxopaluzat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6178/files/fomafowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5135/1200/files/cambridge_o_level_mathematics_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8610/9086/files/multivariate_regression_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6922/6656/files/87727312170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2246/7750/files/vodogowarimoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2256/4000/files/business_progress_report_sample.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 1

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_off000040ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40EE 5360 bytes
SHA-256: b906e38ab25642759d39d289569939a6eca2a3c27a723c23c844e289c1d991f5
font_01_sfnt_off00005314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5314 8820 bytes
SHA-256: 414bce84e7136424953ec29096ee5098034224517c687507f556b91270082866

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