Malicious PDF — malware analysis report

Static analysis result for SHA-256 d36b582522350caf…

MALICIOUS

PDF

44.9 KB Created: 2020-08-02 17:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b22776984608a99e85923f693189271e SHA-1: 1dc5a07f50b2f6f621f6b96bd53f9839a3d9e2f4 SHA-256: d36b582522350caf3846949f72d920e256f6680187a48570eae454755fb2f389
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, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. This indicates the document's primary purpose is to lure users to malicious sites. The ML classifier also strongly flagged this PDF as malicious.

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/wb?keyword=macroeconomic%20theory%20a%20dynamic%20general%20equilibrium%20approach%20pdf In PDF document text
    • http://files.primarycoffeeroasters.com/uploads/1/3/0/7/130738883/fiputopogo-dewalakukagijap-mubedodu-naronanefolade.pdfIn PDF document text
    • http://files.davidsblakeslee.net/uploads/1/3/2/7/132740541/5778558.pdfIn PDF document text
    • http://files.coastalk9c.com/uploads/1/3/2/6/132681207/kakebu_kugexalelilo_wolitodafadoxok_minokexogi.pdfIn PDF document text
    • http://files.dancerscornerlr.com/uploads/1/3/1/3/131384121/ladukafafifolijez.pdfIn PDF document text
    • http://files.in2improv.org/uploads/1/3/0/7/130739204/bajufirubogejofirifi.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/1/0436/5395/5742/files/pezamanevitozegikukoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0877/0726/files/12186340651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4389/4934/files/44945453874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7378/1411/files/36468358295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8489/7701/files/fikevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6020/8540/files/50085090369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1428/3686/files/razofewufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2680/files/7318394287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/89299816945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/miwivopizikodu.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_off00006f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0C 5764 bytes
SHA-256: 4e7ebb093d5f7776ffc66a796eb0f78c9dbafcff454426cf58bd2d5b5f216edc
font_01_sfnt_off00008285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8285 10840 bytes
SHA-256: 786aaf98822cc4539bac9418d472b426aeefb24ea0ad3dc6d447e991881dffe4

Open this report in the interactive analyzer, or submit your own file for analysis.