Malicious PDF — malware analysis report

Static analysis result for SHA-256 91e6e1568aabee3e…

MALICIOUS

PDF

47.8 KB Created: 2020-08-15 08:48:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6109ea61b720f1ae4d01fa5c5d1adaef SHA-1: dc9c76ac0ef4b8bcb650fd63431b4e08b3e51477 SHA-256: 91e6e1568aabee3ee3b25bb7d7ccc5390aed70034af953e120990593861fe17c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, likely for SEO manipulation to increase visibility. The presence of a malicious redirector indicates an attempt to lead the user 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.com/pify?keyword=draft+llp+agreement+in+word+format In PDF document text
    • http://files.ruthscheuing.com/uploads/1/3/0/7/130775727/74113.pdfIn PDF document text
    • http://files.annettedelcanto.com/uploads/1/3/0/8/130814900/busosinu_reburif_vubifurawebe_kinemogilerak.pdfIn PDF document text
    • http://files.mishpuchacamping.org/uploads/1/3/0/7/130776661/zifotavasen.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/1/0439/2851/8824/files/git_difftool_meld.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4399/5298/files/27358811531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0848/2724/files/vaxujakarafav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6409/4873/files/free_converter_to_word_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2421/1354/files/63247088862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3568/1180/files/tevuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6758/8252/files/porth_pathophysiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0046/2501/files/77396392059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7373/2769/files/39033569337.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 8

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_off00006ea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA1 2828 bytes
SHA-256: 85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f
font_01_sfnt_off0000789b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x789B 5272 bytes
SHA-256: 6cf150d5221e8685bd7fd2755c10cbcd786a5fe9c57bbdcd498eaba67a74c792
font_02_sfnt_off00008a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A88 12308 bytes
SHA-256: a1f5d990cb3968f2dcea92554224549d8febb03790668dcb83069b2446a7aae8

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