Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ddd751e64e2f21a…

MALICIOUS

PDF

42.5 KB Created: 2020-08-20 21:09:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7235cf83aa5515670b82dc56a57d039b SHA-1: 075ac7a830c93ea07d8501b3b465db22d30503a7 SHA-256: 8ddd751e64e2f21a0e94cf5a229ac4ae1cb9a7b8919c720121e34b9565196258
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/pify?keyword=colliers+canada+cap+rate+report+q1+2019'. This URL is part of a link farm designed to appear as a legitimate financial report, likely to trick users into clicking. The document body, though heavily obfuscated, contains the same redirector URL. The presence of numerous external links, many pointing to Shopify domains, further supports the SEO link farm heuristic.

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.cc/pify?keyword=colliers+canada+cap+rate+report+q1+2019 In PDF document text
    • http://files.australianfoodie.com/uploads/1/3/1/4/131483955/3712783.pdfIn PDF document text
    • http://tibek.4-ucorp.com/uploads/1/3/1/3/131380181/ebcfe3dd.pdfIn PDF document text
    • http://files.4x4unity.com/uploads/1/3/1/4/131455398/fovevorapujalira.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4016/files/71068421541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7760/7324/files/59121917057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0426/4601/files/wuzenaxunigirutufadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/bioenergetics_grade_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0519/0041/files/algebra_1_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4418/3970/files/tazorinutidimem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6405/6225/files/49172492083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/girotimovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9306/5877/files/jupabipupoxuwilimam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2130/2935/files/28548929586.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58F7 5488 bytes
SHA-256: a4f811d06fe46784c89d863a6e5645d27a37266d0825352430ebac9e78128a1f
font_01_sfnt_off00006ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA3 10528 bytes
SHA-256: 01a74d9712e78fb83141b4b8f8b7e71f01f20c51954ea724986ff5e4d67c3292
font_02_sfnt_off00008f12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F12 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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