Malicious PDF — malware analysis report

Static analysis result for SHA-256 aca06118d07ce3fd…

MALICIOUS

PDF

39.9 KB Created: 2020-08-02 07:06:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 31742872425ba01a9dc94594dfd18b52 SHA-1: b16a4b98c1b5a7c8e32b6346930ffd4df2d94bc7 SHA-256: aca06118d07ce3fd933c5f1659f5160c3dd61b1a531802b1ac290790ab9e4c43
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bryant furnace parts manual' and the malicious URL, suggesting a lure to trick users into visiting a malicious site. The ML classifier strongly supports the malicious verdict.

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=bryant+furnace+parts+manual In PDF document text
    • http://files.craftsbywayne.com/uploads/1/3/0/7/130739726/vibemibegusat_gexemupibezeg_fabotujosalidus_xalilifuzoxokeg.pdfIn PDF document text
    • http://files.naturalisllc.net/uploads/1/3/1/8/131872238/0063df60f2ef7.pdfIn PDF document text
    • http://files.ontmoetpalestina.nl/uploads/1/3/1/3/131383581/fosumabupasunok-disevo-sevarewabodax-kumunaduseve.pdfIn PDF document text
    • http://files.mentaleclipsetheater.com/uploads/1/3/2/8/132814958/1421345.pdfIn PDF document text
    • http://files.tiga-project.com/uploads/1/3/0/8/130874110/rafakusovojiga-zizezog-mipas-rulezilax.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/1/0440/7630/2486/files/52513907219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/74215128532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/15950228694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2056/5156/files/31690045476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8969/0773/files/suwoxiriwovifanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8184/files/51252683025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34680977850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5813/3152/files/kikowapudafapuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7526/2869/files/58014439115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0412/5599/files/13534528030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/xodenipefax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7720/6165/files/goxilinikiwaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7548/5348/files/sizokoj.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 7

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_off00005d67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D67 5312 bytes
SHA-256: 2e9a497afe0e95fe24eeaac0bf9bcb359bdef065e2341d188d5253fa75add372
font_01_sfnt_off00006f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F6F 10320 bytes
SHA-256: a74e9a832698405234c900e92d1545849d9e5c06f5a9582b284b9c19c474bc2e

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