Malicious PDF — malware analysis report

Static analysis result for SHA-256 617feb41c5fbe33d…

MALICIOUS

PDF

40.7 KB Created: 2020-08-11 14:29:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b019d3933a7af7cfd47f10013d01940 SHA-1: 670bc95a077b7984255ea55c2355ea6eded3cef6 SHA-256: 617feb41c5fbe33d9dfb35b1403d7087adb5071c26d4ee51655df2ff61bfa9b5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is also present in the document body. The sample also exhibits a PDF SEO link farm heuristic, indicating a large number of external PDF links, many of which are hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves redirecting users to malicious infrastructure.

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/wb?keyword=rotisserie%20st%20hubert%20menu%20pdf In PDF document text
    • http://files.audaciousdivas.org/uploads/1/3/2/8/132814241/xavezitagigubuf.pdfIn PDF document text
    • http://files.malachytallack.com/uploads/1/3/2/3/132303170/425cc7.pdfIn PDF document text
    • http://files.alexanderecology.com/uploads/1/3/0/7/130739704/dofute.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/1/0431/5018/0503/files/33764536876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/dofonerereduxuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9002/5375/files/bestimmter_artikel_englisch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1485/6610/files/fosofekadoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/iron_carbon_equilibrium_diagram_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2857/7447/files/rewikumakaxila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6038/0327/files/laporan_amdal_proyek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6680/9765/files/bogewofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9303/3117/files/zisare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/2118223068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8336/5528/files/90409414218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/fugawivaz.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off00004cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC4 5188 bytes
SHA-256: 99de4e4f61bb3cdb9f6f4283cd27935dfbe3d4453f43e7dec7e604d9ef7858e5
font_01_sfnt_off00005e40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E40 10084 bytes
SHA-256: 4968288cb10fe9e61e92801fa5028c2a432ecd3f6bbe894e46d367be896c4e61
font_02_sfnt_off000080e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80E2 16060 bytes
SHA-256: 4471f92216f50ed59660dfde07325d7bc7936b356a877ae20405b399f7876638

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