MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, with one prominent URL pointing to 'traffset.ru', suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, appears to be a lure related to 'cognitive behavioral therapy worksheet', which is likely a pretext to drive traffic to the malicious URL.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://traffset.ru/strik?utm_term=abc+cognitive+behavioral+therapy+worksheet
- https://cdn-cms.f-static.net/uploads/4410214/normal_5f9daf99bca51.pdf
- https://cdn-cms.f-static.net/uploads/4367633/normal_5f98091dddc5b.pdf
- https://cdn-cms.f-static.net/uploads/4365546/normal_5fa12325b613f.pdf
- https://menuwenuxunok.weebly.com/uploads/1/3/4/6/134682317/zutad.pdf
- https://cdn-cms.f-static.net/uploads/4368770/normal_5fab640f63285.pdf
- https://cdn-cms.f-static.net/uploads/4393626/normal_5f8ffed98f23f.pdf
- https://pozanabuloga.weebly.com/uploads/1/3/4/3/134366917/94efc.pdf
- https://cdn-cms.f-static.net/uploads/4388432/normal_5f9ac0219a6b1.pdf
- https://cdn-cms.f-static.net/uploads/4375357/normal_5f8bb7b3aff89.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/5cfab04d-3d13-4316-a2d3-83df1d1dfc9c/inner_child_worksheets_for_adults.pdf
- https://uploads.strikinglycdn.com/files/de5b8bf1-d6f8-4067-b54c-bbe00a53cba2/buxopuje.pdf
- https://uploads.strikinglycdn.com/files/72b57e29-35df-4aeb-9ba4-eff249d18667/12062999378.pdf
- https://uploads.strikinglycdn.com/files/3b526041-17fc-40da-9e92-fa911ed63e8e/46512265688.pdf
- https://uploads.strikinglycdn.com/files/cbd0ae88-b1cf-40a9-8983-0e924e90413f/64902438256.pdf
- https://uploads.strikinglycdn.com/files/80b0b2d4-925f-4c60-b0b6-7fcd95b82beb/sanikolonusobun.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_off0000e6c0.bin9a419e7144d97097e8cf0c5b2da4ac71df96b4d10532ef97f6312817f4b974ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6C0 | 5640 bytes |
font_01_sfnt_off0000fa06.bin01bc3b7f98d4b02ac07ac3415ff9091d668432b0f7b5d18cee1a45daa2c0f5ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA06 | 10768 bytes |
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