Malicious PDF — malware analysis report

Static analysis result for SHA-256 5976c9c2be29f320…

MALICIOUS

PDF

39.9 KB Created: 2020-08-21 11:17:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc8915f1c468820e07a8caf3a415e3c4 SHA-1: 9f611db363e6ac10e28f9cbf66a69a23d3dfe694 SHA-256: 5976c9c2be29f3205d00d49a8e2e510858aaae95e83b20392a8441ea73111e3a
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The primary malicious URL is https://ttraff.ru/pify?keyword=responsive+newsletter+html+template+free, which likely serves as a lure to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to the same URLs, reinforcing the redirection attempt. The presence of a link farm heuristic further indicates a malicious intent to distribute links.

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=responsive+newsletter+html+template+free In PDF document text
    • http://files.elisabethnorton.com/uploads/1/3/1/4/131408664/wupefibuvazebo.pdfIn PDF document text
    • http://doxokodif.infantmassagenewzealand.org/uploads/1/3/0/8/130814328/75dce4e620fd2.pdfIn PDF document text
    • http://files.takebackthecoop.com/uploads/1/3/0/7/130775649/gilademowu-ditujoporedok-levozemodelabiv.pdfIn PDF document text
    • http://files.wawaudax.com/uploads/1/3/0/7/130776268/vugudelerus-fiwitapinel.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/1/0431/4352/8609/files/xakekalisunenoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9358/0189/files/fukuganutaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/16303609886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6041/1033/files/580325204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5820/7643/files/differentiator_op_amp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1673/2320/files/zotapidegebid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/4727/5931/files/js_random_number_between.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0209/3987/files/24774128765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9607/1589/files/57886712608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/15020631460.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_off00005ebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBF 5300 bytes
SHA-256: 8dcb94ed13d620202f82db75aad2f983e6c663c971d1128b0ce5be6d2362a8c0
font_01_sfnt_off000070ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70AC 10060 bytes
SHA-256: e2f4421f56bbb850757fad1439f69c58926a6650db920e97bcc375f53cf788be

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