MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'structural steel detailing manual pdf' and the malicious URL, suggesting a lure to disguise the malicious intent. The presence of many external PDF links, some benign and some unknown, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the primary malicious destination.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=structural+steel+detailing+manual+pdf
- http://files.aikendrivingclub.com/uploads/1/3/1/6/131606003/5d6f5f.pdf
- http://mumuzixum.nairnpickers.com/uploads/1/3/1/4/131407535/6435202.pdf
- http://files.cleanlifecolonic.com/uploads/1/3/1/4/131438639/gefanufuridagokasila.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/4164/3928/files/4236808310.pdf
- https://cdn.shopify.com/s/files/1/0432/5575/9011/files/gawulamajujemu.pdf
- https://cdn.shopify.com/s/files/1/0438/3227/9200/files/78264381328.pdf
- https://cdn.shopify.com/s/files/1/0432/9934/0448/files/97590991128.pdf
- https://cdn.shopify.com/s/files/1/0435/1708/3803/files/12685860735.pdf
- https://cdn.shopify.com/s/files/1/0428/0808/2598/files/samuzotageda.pdf
- https://cdn.shopify.com/s/files/1/0427/8000/0422/files/156506455.pdf
- https://cdn.shopify.com/s/files/1/0428/4914/0902/files/47152288575.pdf
- https://cdn.shopify.com/s/files/1/0432/4327/4402/files/jomikozamexexazu.pdf
- https://cdn.shopify.com/s/files/1/0428/2168/1315/files/calculus_concepts_and_applications.pdf
- https://cdn.shopify.com/s/files/1/0436/8026/8438/files/67644025248.pdf
- https://cdn.shopify.com/s/files/1/0432/1558/5448/files/lekupilugimowogoxemadu.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000049e3.bin0551952f60bd710735a5e81e56d44e5aa9cd7e17c78811134eb7756bd72675ea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x49E3 | 5580 bytes |
font_01_sfnt_off00005cc3.bin5c0576157303484964a28e16f8dc48631a140f5effc1f72998bc9e141f33c9df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CC3 | 9548 bytes |
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