Malicious PDF — malware analysis report

Static analysis result for SHA-256 70429cba41f6ba43…

MALICIOUS

PDF

40.5 KB Created: 2020-08-19 02:58:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 84ec3ee6915bf025905e516556b7e7b3 SHA-1: 77c81770c28f475e2a97b88409ee6ba55d33ad3f SHA-256: 70429cba41f6ba436810b091c6199e8b9f1e1195e3f638d00de776439fa64367
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links and text that masquerade as a 'Residential tenancy branch bc condition inspection report'. These links, particularly the one to 'ttraff.ru', are identified as malicious redirectors and part of a link farm, suggesting a phishing or malware distribution attempt. The ML classifier strongly indicates maliciousness, and the overall structure points to a spearphishing attachment.

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=residential+tenancy+branch+bc+condition+inspection+report In PDF document text
    • http://files.savanfinancial.com/uploads/1/3/2/8/132815767/ad5bde.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/1/0428/8095/8617/files/mexabenamexid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/69961391565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6086/1845/files/43691604849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7220/0608/files/xodofatisowuxiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/6020/4444/files/46317277383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/biblical_eldership_strauch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3353/4357/files/jolly_phonics_activity_book_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/9233/0920/files/capacitacion_riesgo_electrico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7286/3904/files/worship_music_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9988/1639/files/gawogixodimimetajixowug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4823/files/tasarufurudaxike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6842/2309/files/vias_de_absorcion_de_los_farmacos.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 6

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_off00006084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6084 5412 bytes
SHA-256: 6cad9efb1ccbd3c72ee4b6eb88327d3b7fdb361c019898c4d2c41ec0dfab7eb0
font_01_sfnt_off000072da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72DA 9880 bytes
SHA-256: ee02a99c140fb87c1933874516be5f9a1a4e826f34546f82e8a470a7978d7993

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