MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains a malformed exploit stream and links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=tobira+gateway+to+advanced+japanese+pdf'. It also hosts a large number of external PDF links, many of which are benign Shopify URLs, suggesting a link farm designed to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of exploitation or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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.ru/pify?keyword=tobira+gateway+to+advanced+japanese+pdf In PDF document text
- http://files.acomputerconsultant.com/uploads/1/3/1/4/131437728/petove.pdfIn PDF document text
- http://files.mostkreativeklassroom.org/uploads/1/3/1/4/131453896/7660101.pdfIn PDF document text
- http://files.thedesigncaravan.net/uploads/1/3/1/4/131438541/8693208.pdfIn PDF document text
- http://files.imtawexford.com/uploads/1/3/1/0/131070362/gizunagudirejupez.pdfIn PDF document text
- http://files.ridgewaygardendesign.co.uk/uploads/1/3/0/8/130814043/5475783.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/1/0428/5680/8607/files/gadalukusobubolipukedoza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9029/4437/files/64914355335.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9703/0805/files/65372219765.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5167/0943/files/61554456755.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3699/9833/files/wovazov.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9304/1053/files/67629330471.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7118/3777/files/pixipodizodowidewifamanip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2232/6696/files/verirabuvumiditeru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2537/5130/files/levusamenosajuvaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1687/1333/files/77166623179.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9163/9974/files/kajujulovu.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
🗂 Part of campaign:
acomputerconsultant.com
5 samples
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000073c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73C7 | 17076 bytes |
SHA-256: ed78a0500d41920d424d5c8171af49643a03fc4b959415a4b121231428276211 |
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font_01_sfnt_off0000aab6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAAB6 | 5708 bytes |
SHA-256: 0fc1f7b7442666cf45790fe988d9767a6dc12e10e575ffce899ca12861f31b1c |
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font_02_sfnt_off0000be53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE53 | 13384 bytes |
SHA-256: 9d19c730cd1f70bdca5ca1081c78cf640b97b4ac7f5f1d2de9e7f15a8ab0d89d |
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