MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1566.001 Spearphishing Attachment
T1071.001 Web Protocols
The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=operations+management+krajewski+pdf'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent.
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.ru/pify?keyword=operations+management+krajewski+pdf In PDF document text
- http://files.timdeanesautowholesale.com/uploads/1/3/2/8/132814050/tekej.pdfIn PDF document text
- http://files.castleviewbands.com/uploads/1/3/0/7/130775497/3122627.pdfIn PDF document text
- http://files.harpsrv.com/uploads/1/3/1/6/131606866/devotavikojap-bisosi-wefuvo.pdfIn PDF document text
- http://files.1000cancerstories.com/uploads/1/3/1/0/131070872/sitib.pdfIn PDF document text
- http://files.articlewriterforhire.com/uploads/1/3/0/7/130739777/gadaxanekewepab.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xizijifopaxefiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8370/3206/files/51291251985.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7121/7565/files/duxevopabuzomitimirew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9072/2454/files/jewipepixoremozawasip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5791/3749/files/guwanomedosiposapamu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2335/8358/files/19805203972.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2393/2311/files/56138132678.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8511/0177/files/44025125240.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/14600152095.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6513/0660/files/92819584921.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008a5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A5E | 5376 bytes |
SHA-256: 3295bdda94c98eaf88aeb6eaab8f56889c136cbc6829a0027443d00c2bcbcccf |
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font_01_sfnt_off00009c9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C9F | 10240 bytes |
SHA-256: 85ed761afae5ad59289cd0b4597c718462f08e76f29c4a00840f4e7ea4fa94a4 |
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font_02_sfnt_off0000bf6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF6E | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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