Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bb02ceee132468c…

MALICIOUS

PDF

34.2 KB Created: 2020-08-01 15:00:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59ab7377113104d820f4a987a3ff5b02 SHA-1: b9222a0023ce705caa977997f7442ed6ab64130d SHA-256: 4bb02ceee132468c5251ec34a19ecb2f6952cb040c11dacec75883aba6ab10a9
194 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF files. One of these URLs, 'https://ttraff.ru/pify?keyword=john+deere+la130', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a coordinated effort to distribute malicious content or manipulate search engine results. The presence of a malicious redirector indicates a likely attempt to lead the user to a malicious site or download further malware.

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=john+deere+la130 In PDF document text
    • http://files.uprisingcapital.com/uploads/1/3/1/8/131856479/ponipebewofelawiv.pdfIn PDF document text
    • http://files.greatthingsatrfca.org/uploads/1/3/0/8/130814676/2618375.pdfIn PDF document text
    • http://files.maimonidesminyan.org/uploads/1/3/1/3/131384468/998422.pdfIn PDF document text
    • http://files.sarch3d.com/uploads/1/3/2/6/132683422/bodawagofagozon.pdfIn PDF document text
    • http://files.sacred-waters.org/uploads/1/3/1/3/131383510/1235764.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/1/0437/9430/1085/files/sawewosijov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/kukereliwaxodumugamojivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/75486321427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1107/9317/files/46395028272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7931/1253/files/23046954897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4431/6070/files/gumuvuweboxoxazino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0029/8648/files/85438331241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9492/4694/files/51566557455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2039/3375/files/1171061552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/jawofikulabod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/furumifapukusonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/51555274997.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 3

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_off000047b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47B8 5084 bytes
SHA-256: edb5d62dbe88d5f0c3a45ef9b8d5228e23a155aa24dae8c991aed8b5d1e656b5
font_01_sfnt_off000058fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58FB 10284 bytes
SHA-256: 2b670da7dfec9fd09e19088c13f1081b4b9f1999842f8143f8724cd3a2ffa823

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