Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b206ba649ee6729…

MALICIOUS

PDF

44.4 KB Created: 2020-08-05 07:31:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2c6b9260bcf7fa8431648f02e1f4ab9c SHA-1: a404d1f6949550ec38367bfe8eb0692dc2b4460c SHA-256: 2b206ba649ee6729f71d3e94a173b242327cce2da9b380f1160a7ac5bc5c5fdf
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious content, specifically disguised as a manual for 'Ariens 7524'. The primary malicious URL identified is https://ttraff.ru/pify?keyword=ariens+7524+manual+pdf. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The ML classifier 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=ariens+7524+manual+pdf In PDF document text
    • http://files.millrdcommunityspace.ca/uploads/1/3/2/6/132681586/gavuzeto.pdfIn PDF document text
    • http://files.jr-accounting.com/uploads/1/3/0/7/130775520/e08915616e6f.pdfIn PDF document text
    • http://files.wpca.org.za/uploads/1/3/1/1/131164572/1234495.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/1/0431/6083/0116/files/31880481492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6127/9896/files/25741079830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5433/3093/files/gorijinonozupasufadovilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1820/6888/files/41220694082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71895612735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/54201592175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5592/1817/files/keliwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0994/7301/files/roruduboxunuwosirek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6646/6216/files/86042517960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2762/0249/files/49908719926.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 5

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_off000067ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67CE 5600 bytes
SHA-256: d1fa219f65c39af286ccc4b8781ff580b0926813ad2673e52134716e06b6f1c7
font_01_sfnt_off00007ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD7 12780 bytes
SHA-256: 080aebdc92f0791e7b7906fac9cdefc920ac44c690d495da3f43cd6aa3234cc4

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