MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though partially corrupted, contains text related to a birthday greeting and the malicious URL, suggesting a social engineering lure. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content. The ML classifier strongly flagged this PDF as malicious.
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=feliz+cumplea%25C3%25B1os+mejor+amigo+carta+l In PDF document text
- http://files.oxfordcitylionsfutsal.com/uploads/1/3/0/7/130775808/5825995.pdfIn PDF document text
- http://files.nsanegriplegendcarscom.com/uploads/1/3/1/6/131637562/ruferolemezo-fukaxajuvo-kezewovupawat.pdfIn PDF document text
- http://files.matthewlmcguire.com/uploads/1/3/1/4/131437005/tisixi_konufuwivaxemir_sasuvijip.pdfIn PDF document text
- http://mapajeza.osuepic.com/uploads/1/3/0/7/130739204/pubiliz.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/1/0450/3673/2566/files/xamuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7713/9613/files/sign_language_alphabet_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9413/8277/files/15589363955.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2748/9183/files/fivavakiduvivupov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0005/2387/files/milib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1652/7770/files/potikejige.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0839/3379/files/judamafuvune.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0463/2634/9985/files/din_en_iso_12100-_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8427/4081/files/lotigutijavabigozorabe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0318/3258/files/jarinotuzenenir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5359/6310/files/pevipab.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000079b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79B7 | 5544 bytes |
SHA-256: d29a04bb2f769d36e89496c4cd774a702f0c56e32868798c89593d5c67b8f30e |
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font_01_sfnt_off00008c43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8C43 | 10692 bytes |
SHA-256: 4cbd2a2625e7d30d640b86f90dcf45d9e4d41d565c79db1c9bb6edd4f34b3143 |
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font_02_sfnt_off0000af07.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF07 | 16524 bytes |
SHA-256: e3c284d5442199699852709ff7a6e0917a8bfab7b0b7c5594f8d2f5418450d5e |
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