Malicious PDF — malware analysis report

Static analysis result for SHA-256 e85f23bc967bab37…

MALICIOUS

PDF

45.0 KB Created: 2020-08-15 23:38:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9857d8a7dde369d1d83abfff04dd973 SHA-1: a05572681796da21fab29edc3a9558ec7ad31ff9 SHA-256: e85f23bc967bab37473d5f301903e21ba44bcd58177ea333000958874666939a
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to funnel victims to malicious content. The document body itself contains the search query 'excel vba tabellenblatt pdf drucken' and multiple links to PDFs hosted on Shopify, suggesting a lure to download further malicious content or exploit. The ML classifier strongly indicated maliciousness.

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=excel%20vba%20tabellenblatt%20pdf%20drucken In PDF document text
    • http://files.roughsawnlumber.com/uploads/1/3/2/6/132681976/17864bcc40.pdfIn PDF document text
    • http://files.themillbrookhunt.com/uploads/1/3/0/7/130739537/0e26530582.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/1/0433/0687/7080/files/3359516262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4409/1557/files/16507619907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/widizosatadusuzovasovodas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3928/4645/files/69568745007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4354/3447/files/gonilamatulofuvari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8945/1416/files/chevy_cobalt_transmission_rebuild_kit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rerivavegexem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/fe_exam_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/longman_writer_9th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8877/1227/files/3077435547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9881/6150/files/15853366694.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 5

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_off000063d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D3 5260 bytes
SHA-256: 21562dc4b1b3e5032681432b1eafd7a11bcc6585a4727a20dae50913d3d11ca7
font_01_sfnt_off000075c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C7 16048 bytes
SHA-256: b06b56e286a8cd1ff4af2aa2e6abb4b4f16aa30dba5ce4221e3470d053909ff0

Open this report in the interactive analyzer, or submit your own file for analysis.