MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing or link farm attack. It contains numerous external links, with one prominent URL pointing to 'trafftec.ru'. The document body, though heavily obfuscated, suggests a lure related to "Crabbe book answers" to entice users to click on these links. No scripts were extracted, but the presence of many external links indicates a likely attempt to redirect users to malicious or advertising-heavy websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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External URI info PDF_URIPDF contains an external URL action
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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://trafftec.ru/aws?utm_term=crabbe+book+answers PDF link annotation
- https://cdn-cms.f-static.net/uploads/4383334/normal_5f8be05af273f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365619/normal_5f914c2a80590.pdfIn PDF document text
- https://lolijigi.weebly.com/uploads/1/3/4/7/134700793/f3250.pdfIn PDF document text
- https://wofinomedek.weebly.com/uploads/1/3/4/1/134108675/8313406.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420747/normal_5f9c84a9af7a0.pdfIn PDF document text
- https://siregudak.weebly.com/uploads/1/3/0/7/130738759/mibajonoloxikir-visev.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425506/normal_5f9b3a894ac85.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374686/normal_5f91abea0f4e8.pdfIn PDF document text
- https://ralezajaxuluw.weebly.com/uploads/1/3/4/6/134623653/2358917.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cc8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC8B | 4848 bytes |
SHA-256: 25da26a888057cdb5e10b5c3eae512be45fe3c248d07d5755d60e48852d70804 |
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font_01_sfnt_off0000dd25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD25 | 10300 bytes |
SHA-256: 2e568f689858b2a6d597541c5f9905bfa853688626c26fe21988924264a103f3 |
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