Malicious PDF — malware analysis report

Static analysis result for SHA-256 43d06fa7da917506…

MALICIOUS

PDF

48.3 KB Created: 2020-08-11 00:51:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8744a03aa9498dd92d3e663d5a85877d SHA-1: 7145d919f32dd999f5cfad2176265702daef02ca SHA-256: 43d06fa7da9175069e618e2591646c8df2fedaa269e36830c0c827187bd99d86
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm designed to obscure the ultimate destination. One critical heuristic identified a link to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, also contains this URL, indicating a likely attempt to lure users to a malicious site for phishing or malware delivery. 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.
  • 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=bums+in+the+attic+pdf In PDF document text
    • http://kokexem.hollymsmithphotography.com/uploads/1/3/1/3/131379730/muxajufurivi.pdfIn PDF document text
    • http://files.adirondack90miler.com/uploads/1/3/1/4/131406403/fusodum.pdfIn PDF document text
    • http://files.riversideartswalk.com/uploads/1/3/1/4/131438844/4571769.pdfIn PDF document text
    • http://files.crossfitparsons.com/uploads/1/3/1/3/131380308/942586ce18227.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/1/0429/6582/7747/files/clannad_visual_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0108/5082/files/76384452370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6405/0332/files/94123081708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6416/4506/files/33679279401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5745/3985/files/39343560354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pidepuwavulosetanujerepub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/25610218349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6333/5319/files/mogepetizir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/winidozuwidom.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_off00007fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB3 5316 bytes
SHA-256: 02838cad7b4291f0532b3dd16472510605ef0ae99bfe927b82b80c33e81a1720
font_01_sfnt_off000091a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91A0 10208 bytes
SHA-256: 7f16db2678d0b50d4cf3125ba112ecd96380d51479ac45f8f028cee639dee65a

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