Malicious PDF — malware analysis report

Static analysis result for SHA-256 4132a2529b5d92fc…

MALICIOUS

PDF

50.3 KB Created: 2020-08-05 03:15:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6eb6c74009c3366465be2ebb6dae8938 SHA-1: 1f079e4cb492ca08a93f446756e2cffe674bfe7d SHA-256: 4132a2529b5d92fc59f9b981896c7557402e028b3c649c37f71e97e75adba0fa
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. This URL is embedded within the document body, suggesting a social engineering attempt to trick the user into clicking it. The PDF also contains a large number of external links, many pointing to Shopify, which is characteristic of SEO link farm abuse. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.

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=journal+bearing+failure+modes+pdf In PDF document text
    • http://files.hbcutravelers.com/uploads/1/3/0/7/130775712/30b36819.pdfIn PDF document text
    • http://files.tulambendiveresort.net/uploads/1/3/1/4/131406684/dufalurevejep.pdfIn PDF document text
    • http://files.thirstforknowledge.ca/uploads/1/3/1/0/131070173/afdff8cc.pdfIn PDF document text
    • http://files.jordandeadseaminerals.com/uploads/1/3/1/3/131380985/2712768.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/1/0437/7539/3946/files/bearded_dragon_care_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/los_compas_y_el_diamantito_legendario_descargar_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72707516801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/25690266893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/kuzenibemizivijud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/jegawizefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8701/8649/files/69211204265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/sezig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8513/5014/files/22132986648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7096/3366/files/sumulol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/mesalidex.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 8

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_off00008716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8716 5492 bytes
SHA-256: b6dd5ce2cfd24585b43538db789262cf85ccd4dbf33e003e203a5a9b68b1ad7b
font_01_sfnt_off000099a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99A9 10164 bytes
SHA-256: 9e2a5246e3f957dc1a670027c1b2b241276085e2ec98b1b1acf9722b208666ab

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