Malicious PDF — malware analysis report

Static analysis result for SHA-256 5361a979b4451433…

MALICIOUS

PDF

36.0 KB Created: 2020-08-02 23:15:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d38f5fbf5a26ac8976fa61c401bfa560 SHA-1: 420a1789d63e3c9e4b2260542e4a72ffdfcadb90 SHA-256: 5361a979b4451433d81050ab48d816d1a8b1ed9148eb8135796f4cb3626c8b03
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains text related to 'Dymo label v8' and references wkhtmltopdf, suggesting a lure to download or interact with malicious content disguised as legitimate software or documentation. The primary malicious IOC is the redirector URL.

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=dymo+label+v+8 In PDF document text
    • http://files.balloontwistersdcvamd.com/uploads/1/3/0/9/130969375/gipagazovupibiz_tolokaduwimola.pdfIn PDF document text
    • http://files.corealis-ing.net/uploads/1/3/2/8/132814448/24ac7.pdfIn PDF document text
    • http://files.ajtve.com/uploads/1/3/1/8/131856306/9160592.pdfIn PDF document text
    • http://files.homelesshaventv.com/uploads/1/3/0/8/130873876/bd7e6ca764.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/1/0431/1020/3556/files/4203370015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9159/0308/files/25016357007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7465/8216/files/lunijomozesomuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9574/3907/files/67433889467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/libidurekatomanazavevufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/75987643941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2680/files/59503904785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8035/1897/files/lonizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5758/6071/files/zizaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3880/1061/files/kukaxaludujukotavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0631/0046/files/xiwopuberuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/80339729795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5959/3894/files/wosiwoto.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_off00004f35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F35 5052 bytes
SHA-256: a214cf5d052a1f82d121de4045520dcf79efee96475b20c20c1270a67ca97aed
font_01_sfnt_off00006068.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6068 10272 bytes
SHA-256: 35b5b35902c007dab787caae2c1b6e500be63cec1e1680e1ef0229cddde8f19e

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