MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=free+accounting+dictionary+pdf'. This URL is presented within the document body, disguised as a link to a free accounting dictionary. The presence of a large number of external PDF links, many of which are generated with SEO-like slugs, further indicates a link farm or redirection tactic. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=free+accounting+dictionary+pdf In PDF document text
- http://files.scubatom.com/uploads/1/3/0/7/130739616/binuled.pdfIn PDF document text
- http://files.holisticcoachsg.com/uploads/1/3/1/4/131407705/7bde5.pdfIn PDF document text
- http://files.minortrends.com/uploads/1/3/0/8/130874588/4561014.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/1/0432/7034/0772/files/wazopiwogafimiludukawezug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5525/9546/files/83093078808.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4517/3910/files/enterprise_risk_management_adalah.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1157/9809/files/mosemugimekapawofab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2626/7806/files/94001492733.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9228/5342/files/71875936499.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2107/2546/files/building_construction_cost_data.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8940/2779/files/lifujuvimotinusawumi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3637/6214/files/jifox.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
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006158.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6158 | 5172 bytes |
SHA-256: 91209bce0d860463d74ef41f0bb7fc918513ae34e2a623520f745e996a4afb35 |
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font_01_sfnt_off00007304.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7304 | 2396 bytes |
SHA-256: 57bdf06c6292086add387f10af9ff14031d1c3837ba6a63e04b14693dbaf2433 |
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font_02_sfnt_off00007dce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DCE | 15736 bytes |
SHA-256: 932ad577ccb02110b0b5321bf29724db231cdb54a6cd1ad153747d38c40f2b30 |
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font_03_sfnt_off0000a98c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA98C | 17056 bytes |
SHA-256: 9c212e23ffe3612f05601ad2c334503c287548533cabf75a59ffca75ccbdc065 |
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