Malicious PDF — malware analysis report

Static analysis result for SHA-256 6630b21b4cdb4d0f…

MALICIOUS

PDF

41.3 KB Created: 2020-08-18 17:24:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8728c85c5f071b8ca195348fc3c03392 SHA-1: 9bd2cad3ddcc3951b7726221f9a1d96ddd0d33c6 SHA-256: 6630b21b4cdb4d0facf5fbe0312eb9b025aaa9fdef1b48b99f1791c757faa2d2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links to external resources, including a known malicious redirector at 'https://ttraff.ru/pify?keyword=illustration+essay+outline+template'. The presence of a link farm and the redirector suggests an attempt to lure users to malicious sites, likely for phishing or malware distribution. The ML classifier also strongly indicated maliciousness.

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=illustration+essay+outline+template In PDF document text
    • http://files.ggspdt.com/uploads/1/3/1/4/131437711/3384185.pdfIn PDF document text
    • http://files.ahealthybalance.ca/uploads/1/3/2/6/132682564/xeguvomakeralab.pdfIn PDF document text
    • http://files.houseofaromas.online/uploads/1/3/0/9/130969440/pupipa_kakikufafumoso_getovefu.pdfIn PDF document text
    • http://dewowu.yourcbshop.com/uploads/1/3/1/1/131164250/5ca54ec7dd46.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/1/0431/0233/9232/files/32224703074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5467/8687/files/3011707097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2072/1055/files/95549446701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9765/2376/files/busubererosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6706/1925/files/sitelalumizigosiziwugamoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9439/2485/files/isoflavonas_de_soya.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3624/5142/files/24660876003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5735/6710/files/mibolegadojoxut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4642/8062/files/ruwut.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_off000066a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A4 5004 bytes
SHA-256: 4fc14c46d72f1f4c513684c74bc9ef120a646f9e3141628d19171075924ef1f0
font_01_sfnt_off0000778d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x778D 9688 bytes
SHA-256: a72d8f3745a54f8f1a0bb9ad8d44ac70be3c2a56cca18f5ff34044ee36f5148a

Open this report in the interactive analyzer, or submit your own file for analysis.