Malicious PDF — malware analysis report

Static analysis result for SHA-256 36d9ce2b8ed45f04…

MALICIOUS

PDF

40.4 KB Created: 2020-08-21 01:06:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d5d05fd9bf8b6a89dad901e2b3f8a89 SHA-1: 0ef531365edf21d2a03a5a7c3380937419ac664b SHA-256: 36d9ce2b8ed45f0419e65dfea7db7c1673bcd3609f626ff2e0a7b980a8d92fe4
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The embedded links, particularly the one to 'ttraff.cc', suggest a redirection to a malicious site. The presence of numerous PDF links, many hosted on Shopify, points towards a coordinated effort to distribute 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.cc/pify?keyword=cataphractii+terminators+datasheet In PDF document text
    • http://gaguxamep.fleurspressed.com/uploads/1/3/2/6/132696067/4703236.pdfIn PDF document text
    • http://wimesol.sevenstarsamerica.org/uploads/1/3/1/4/131483281/dddf5f1acc6e310.pdfIn PDF document text
    • http://files.ststephenriverrunners.com/uploads/1/3/1/6/131636889/xofor.pdfIn PDF document text
    • http://files.entropicj.com/uploads/1/3/1/8/131856907/4136283.pdfIn PDF document text
    • http://mabev.jamesbrothersstudio.com/uploads/1/3/1/1/131164250/tokowuxobafunadopavi.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/1/0435/9074/6271/files/mefaref.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/9555391727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1125/files/77754613599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/texevupibupuvonawoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1958/4166/files/bepuxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0469/3400/files/badger_5_insinkerator_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6730/2303/files/ampicilina_ampola_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3266/9334/files/essential_english_words_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5642/1269/files/burglary_proof.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_off00006108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6108 5184 bytes
SHA-256: 76b6c393c64e95646b1ecee167cf39bbf64dc5d470be92234fd24a67ad3f55d2
font_01_sfnt_off0000727d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727D 10296 bytes
SHA-256: 130bcb77090cd4caced3cfa0eda6b84d3b57ac89e43752c0e090dbe2b1066bcc

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