Malicious PDF — malware analysis report

Static analysis result for SHA-256 daa4285030717911…

MALICIOUS

PDF

40.3 KB Created: 2020-08-04 01:33:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 899f645b33d2d2fe80d2456028ed1d17 SHA-1: 4110ab433137da430644660e7bad626d04fc1122 SHA-256: daa4285030717911eaef44fa82077bebfd795456097cb3f3df40011d6428e4bd
194 Risk Score

Malware Insights

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

The PDF contains a large number of links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning tactic to lure users to malicious content. The primary malicious URL is https://ttraff.cc/pify?keyword=airlock+system+in+pharmaceutical+industry+pdf, which is likely used to redirect users to a phishing or malware distribution site.

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=airlock+system+in+pharmaceutical+industry+pdf In PDF document text
    • http://files.ikchew.com/uploads/1/3/0/7/130775848/dimuvatufi.pdfIn PDF document text
    • http://files.ontrackracing.com.au/uploads/1/3/1/6/131606782/rukal.pdfIn PDF document text
    • http://files.d365m.com/uploads/1/3/0/7/130775974/1849320.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/1/0430/0419/9075/files/97396742317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8152/1560/files/nojaxorigemajusaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/9580761829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/fitivaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1548/8163/files/additional_mathematics_text_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8481/5263/files/chase_sapphire_preferred_benefits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/romemuwajutipifulit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51191810805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2149/1621/files/jopokepufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2576/7320/files/59092179664.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_off00006036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6036 5552 bytes
SHA-256: d001ab48ee71bbc051387fd24e83fdc91f85f04896bcdae4ec8dd9c1871abdf5
font_01_sfnt_off000072fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FA 9764 bytes
SHA-256: ecb87472e332e57c3eb07d79fe7de31a01ced6f7d5aba4a8fc82b41f4a468b21

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