Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aa2aeca68a159de…

MALICIOUS

PDF

41.0 KB Created: 2020-08-12 15:43:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 018838d07cb53383d752dd2b92d3052b SHA-1: 2bd34c3e0b1b4aa3e57df67e3a9fb81648390902 SHA-256: 2aa2aeca68a159de9f669e6564bbb13b2233476ff9cd00bc00f4b15f10764d7c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body, though heavily obfuscated, contains the same URL and text suggesting it's an installation manual. The PDF also contains a large number of links to external PDFs, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure malicious destinations. The primary malicious URL is https://ttraff.com/wb?keyword=kartell%20bookworm%20installation%20manual, which likely leads to further malicious content.

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.com/wb?keyword=kartell%20bookworm%20installation%20manual In PDF document text
    • http://digopi.fedfis.com/uploads/1/3/1/0/131070374/f8a42d3e.pdfIn PDF document text
    • http://files.kirstennimwey.com/uploads/1/3/1/0/131070612/cee1eb1f.pdfIn PDF document text
    • http://files.mrlowderman.com/uploads/1/3/0/7/130738751/fujawaf-gimoz-resufut.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/1/0433/7077/4679/files/38421432187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/35770957202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7542/6722/files/44031047176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/34402720626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8116/1111/files/53203175781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/32835330763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1646/1211/files/luxibakibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9032/7205/files/despite_and_in_spite_of.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1384/8733/files/gosefetosiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/vavidaxafefuzijozub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9480/9512/files/cardiovascular_disease_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/startup_budget_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6352/5026/files/base64_decode.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 2

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_off0000623e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623E 5096 bytes
SHA-256: 26f17f24cc615f849d6d7fbede3a97c4556fcd19fddf4ae0e77fc58caba804ba
font_01_sfnt_off00007389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7389 10420 bytes
SHA-256: c767feec2116247fcfe3cdb7eb26c2fecd3c0f7de197d7f7b1ca903b7db4fd3c

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