Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c34546f563a5843…

MALICIOUS

PDF

71.0 KB Created: 2020-08-22 12:46:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd31ec5e0bd94846b1ba38a562119b3f SHA-1: 21b40f308b597349ae31162b5ef9dd57892fd69b SHA-256: 5c34546f563a5843e1adc5c8ce399daea9795778368ad2d689248c87850d1dd9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a high number of embedded links pointing to redirector infrastructure, specifically identified as a link farm for SEO purposes. One of the primary links, 'https://ttraff.ru/pify?keyword=ganesh+bhajan+video++3gp', is flagged as malicious. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the structure and embedded links suggest an attempt to redirect users to malicious content.

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=ganesh+bhajan+video++3gp In PDF document text
    • http://files.pt-educationfoundation.org/uploads/1/3/1/4/131408432/8438434.pdfIn PDF document text
    • http://files.caroline-gibbs.com/uploads/1/3/2/6/132681463/bonirasede_zeletax_fiferaziwumuta_nisuto.pdfIn PDF document text
    • http://files.firewiseconsultants.com/uploads/1/3/1/4/131454883/901795.pdfIn PDF document text
    • http://sidugaza.marshallterrace.org/uploads/1/3/0/7/130739344/kowezobotilajolaj.pdfIn PDF document text
    • http://files.queenbeehomemadegoods.com/uploads/1/3/0/9/130969800/f827b74.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/1/0428/7427/3948/files/15620218436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5317/0334/files/income_tax_slabs_fy_2020_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8814/9668/files/86212604188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6731/0231/files/16140479179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6647/5164/files/1107_west_42nd_street_richmond_va.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4826/files/ponapazum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/jidowelesumaborezogipikij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3889/8333/files/gexivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5280/9888/files/73491054530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/darodawivid.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_off0000d214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD214 5564 bytes
SHA-256: 8ed05e1a8557d8553b53c2fed91b6a35108d3369db2203945dd8691fbf4182d1
font_01_sfnt_off0000e50f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE50F 13112 bytes
SHA-256: 45083064bb2e5b00c7315fcaa56b39f114e7370821202c76da0a1b8d6d8beda5

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