Malicious PDF — malware analysis report

Static analysis result for SHA-256 db8b8bb7db2132b1…

MALICIOUS

PDF

45.2 KB Created: 2020-09-19 05:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d5323279c49f075d49ef0daf98fbc38 SHA-1: ae0e636c484a21a25edf9debe43d464202a7b93c SHA-256: db8b8bb7db2132b1e8c65471ef1e9c034e6cf98e5376207252d991aa1bbc1b19
184 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm for SEO manipulation. One prominent link redirects to a malicious URL, likely intended to deliver a payload or phish for credentials. The document body itself contains a lure related to 'Evenflo infant car seat installation without base', which is likely used to trick users into clicking the malicious link. No scripts were extracted from this sample.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.link/wix?keyword=evenflo+infant+car+seat+installation+without+base In PDF document text
    • http://jugunok.alpinevizslas.com/uploads/1/3/1/4/131455328/4a2da8.pdfIn PDF document text
    • http://reredi.plastersurrey.co.uk/uploads/1/3/2/3/132303388/0377d8a8.pdfIn PDF document text
    • http://rorixe.directaimmedia.com/uploads/1/3/0/7/130776508/6279478.pdfIn PDF document text
    • http://files.mynewonline.store/uploads/1/3/0/9/130969887/7048292.pdfIn PDF document text
    • http://zipezagi.frankmorrisjr.com/uploads/1/3/2/8/132814838/4692147.pdfIn PDF document text
    • http://files.thebuddhasmedicine.com/uploads/1/3/2/8/132814935/nugix.pdfIn PDF document text
    • http://files.grroane.com/uploads/1/3/2/7/132740296/f74e6ed72f8.pdfIn PDF document text
    • http://files.intensifyyoursport.com/uploads/1/3/1/4/131437834/xidorerogib.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://63c739a6-9d0b-4010-8213-ae4f58b9ddc3.filesusr.com/ugd/895bef_8a7bb03f9353426889743a1753cda31a.pdf?index=trueIn PDF document text
    • https://20d649de-1878-4614-8314-b0f47948c347.filesusr.com/ugd/185c00_53ad08841473445e8f01ca955e14eff4.pdf?index=trueIn PDF document text
    • https://c6856924-e6e0-4fb1-b0b6-2697658fc6f2.filesusr.com/ugd/03ae60_8d25859d91e34626b79b722b4153a779.pdf?index=trueIn PDF document text
    • https://b7042f65-607d-4ade-9c24-2f4b99e93964.filesusr.com/ugd/3801ff_9994afb64d7141209da1e498c8b12ea8.pdf?index=trueIn PDF document text
    • https://36bd59b1-615a-4dbe-ac8e-5ae6d96d022f.filesusr.com/ugd/c67d0c_0ec4c5c61b4840db90c7e67ca14b0acc.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/patijagajof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2694/5947/files/ciccarelli_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5336/7975/files/76513429862.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000658b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658B 5100 bytes
SHA-256: 1204981faa5baaa027251296b6129a65b9268f456c9502c1807bdda95da75f81
font_01_sfnt_off000076f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F0 10064 bytes
SHA-256: 591ec3314e35d344401a6440895beeb105f6032da5e2ef3e47673388b411b8b2
font_02_sfnt_off0000994e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x994E 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176