Malicious PDF — malware analysis report

Static analysis result for SHA-256 995345521bb87c55…

MALICIOUS

PDF

52.5 KB Created: 2020-08-12 03:44:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2dcd0fdc56e79d19e93ee0cf71154855 SHA-1: d31e228f01cb7f53454d0c869f5cc04e6b40b384 SHA-256: 995345521bb87c5571784c5dbe6ee4d9cd26a08dc0c3b9eb5b17c141730a1956
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'material costing methods pdf' and the malicious URL, suggesting a lure. The presence of many external PDF links, including benign ones on Shopify, indicates a link farm strategy. No scripts were extracted from this sample.

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.com/pify?keyword=material+costing+methods+pdf In PDF document text
    • http://files.paddelboden.com/uploads/1/3/1/3/131384113/ganofa-nutodowozum-nusofuw.pdfIn PDF document text
    • http://files.awlab.com/uploads/1/3/0/7/130775795/maxarevobis.pdfIn PDF document text
    • http://files.geraldinemalone.ca/uploads/1/3/1/0/131070207/butivexexigavo_dasusotozezif_dufuporulaje_lotoxiroze.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/1/0431/1829/7245/files/fivapodetesejel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1568/3744/files/latex_long_tables.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6231/2611/files/91353025862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5205/6227/files/divilidoxagapese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/bsc_2nd_year_botany_notes_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/allahabad_high_court_aro_notification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/48546937858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/napebidorefamilozupar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/1635101288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/antenna_handbook_theory_applications_and_design_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8008/0801/files/bogofusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/miveguxuxububepevomozit.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 2

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_off00008de4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE4 5572 bytes
SHA-256: 154a2d4cfa4387e6f2aff43d738e8c2069beae47e878f0fd4dc0474d7facc44a
font_01_sfnt_off0000a0a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A8 10844 bytes
SHA-256: 7eb1e50cb069530748e9411c0744f799d7f8a2aaf91959bcad30e7f85b6ea657

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