Malicious PDF — malware analysis report

Static analysis result for SHA-256 b36395eb980c155e…

MALICIOUS

PDF

40.6 KB Created: 2020-08-20 05:32:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d0fb2577cabfdc437b889bef99de301 SHA-1: ddcfd998cdbad2d9f006508b6d2149368ec62f15 SHA-256: b36395eb980c155e9d6af9543117aae904f763be0f6404a529b04a1813e41c76
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links pointing to various Shopify-hosted PDF files, which is characteristic of a link farm used to obscure malicious intent. One of the primary links directs to 'ttraff.ru', identified as a malicious redirector. The document body, though heavily obfuscated, contains references to these URLs, suggesting an attempt to disguise the malicious nature of the document. The ML classifier 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.ru/pify?keyword=commonspirit+health+annual+report In PDF document text
    • http://xiwovuz.counseling2transform.com/uploads/1/3/0/7/130775162/7077057.pdfIn PDF document text
    • http://files.weatoguefarm.com/uploads/1/3/2/7/132710748/69c6696b.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/1/0433/5458/7295/files/learn_spanish_wikibooks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6090/1528/files/9787218625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/gunimegapimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7358/3781/files/wesakek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4266/6656/files/40612032466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6787/5228/files/mematajireno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6622/0695/files/mudokejoxobowebizomaruwug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9465/3594/files/lipid_profile_blood_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4977/1430/files/business_information_systems_degree_classes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0294/3909/files/gozomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/18752000104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/xulewutewali.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 1

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_off000060ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60ED 4964 bytes
SHA-256: d19f63433542a78338a7b9dcdf1abccfde51e373b0807cd74d7b76104dafa562
font_01_sfnt_off0000719c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719C 10600 bytes
SHA-256: 734b726ed320d602a289a1535fdd7e23b95c080dcbadc0d9d2d0531ad3f4e225

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