Malicious PDF — malware analysis report

Static analysis result for SHA-256 da1c6bc54d3d9b20…

MALICIOUS

PDF

38.7 KB Created: 2020-08-15 10:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff0385f6e665377fbf1d54a837d89479 SHA-1: 9c426820375ccf6847b53925e4e6d6253b95eef2 SHA-256: da1c6bc54d3d9b20516b3ecde8d3c93aebdbcf7dc2263127c9c1767e98462ff2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, with one critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=peloton+app+android+tv, which is likely used to redirect users to further malicious content. The document body itself is largely unreadable binary data, but the presence of the redirector URL and the link farm heuristic strongly suggest a malicious intent to lure users to external sites.

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.cc/pify?keyword=peloton+app+android+tv In PDF document text
    • http://files.greenteamllc.com/uploads/1/3/1/8/131857305/rixipomavuzadegabur.pdfIn PDF document text
    • http://zuras.sfhillsanddrills.com/uploads/1/3/1/0/131070374/xagivopavedixewadiw.pdfIn PDF document text
    • http://loxifiko.graciemaescookieco.com/uploads/1/3/1/0/131070858/9646407.pdfIn PDF document text
    • http://jomexalin.majorguideservice.com/uploads/1/3/0/7/130776445/8268329.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/1/0434/0206/8131/files/jalakesitafoxuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0734/3779/files/arkitektura_shqiptare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8339/9329/files/lubenitajigozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/7295536049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/lisufifixipiwokexumudijiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/6274/9334/files/spring_resttemplate_ignore_unknown_properties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/4586961673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5167/7856/files/faxapijepalem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7951/3752/files/kopasoxakimubepimuwuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4460/8920/files/helter_skelter_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/73009389835.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005aff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AFF 4836 bytes
SHA-256: 903c615d6612083384743f2b8da2f20bbf335ef3e35e9163349df9d594d0e7e5
font_01_sfnt_off00006b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B81 10144 bytes
SHA-256: ca3a8ba4e47b66ffdbc927b81539edb785d2eee82b6cbf8e540f3641097cb7bf