MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection and an ML classifier. It contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM', suggesting a phishing or spamming operation. The primary IOC is the external URL https://trafficel.ru/123?utm_term=firehouse+subs+turkey+creek, which is likely the initial lure or destination for the link farm.
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://trafficel.ru/123?utm_term=firehouse+subs+turkey+creek
- https://cdn-cms.f-static.net/uploads/4370989/normal_5f9235f63385e.pdf
- https://lulitetuxopibol.weebly.com/uploads/1/3/1/1/131164377/fexage.pdf
- https://cdn-cms.f-static.net/uploads/4502246/normal_5fae3f70d3fff.pdf
- https://cdn-cms.f-static.net/uploads/4500667/normal_5faf888339b60.pdf
- https://cdn-cms.f-static.net/uploads/4372080/normal_5f9b857dab9c1.pdf
- https://cdn-cms.f-static.net/uploads/4365567/normal_5f874ba83200c.pdf
- https://cdn-cms.f-static.net/uploads/4368250/normal_5fab9c6e66179.pdf
- https://cdn-cms.f-static.net/uploads/4408009/normal_5fa01fad8be19.pdf
- https://cdn-cms.f-static.net/uploads/4423728/normal_5fb5409bb23dc.pdf
- https://cdn-cms.f-static.net/uploads/4369788/normal_5f9ecb46427b4.pdf
- https://gapixupat.weebly.com/uploads/1/3/1/6/131637313/2237816.pdf
- https://cdn-cms.f-static.net/uploads/4366027/normal_5f89438f974d1.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/bd3a6d22-0476-4986-bd8b-51cf371c999c/rachel_carson_primavera_silenciosa_p.pdf
- https://uploads.strikinglycdn.com/files/93cd16e3-3cb8-4f62-bbcf-ca54f1ab3781/chin_no_ma_kia_tp_6.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_off0000cb2f.binfbac25b1899f3220ce57825cbb4e30c9e6d53ad31f35e12815ae66a437df29f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB2F | 4904 bytes |
font_01_sfnt_off0000dbeb.bin34bfb7ad0be8aa38e9de61564bc9e69974512406f1ec9c206e304dc0bbea95f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBEB | 11536 bytes |
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