MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many hosted on disposable domains, indicative of a link farm or SEO manipulation tactic. ClamAV and ML classifiers identified the PDF as malicious, specifically a phishing trojan. The embedded URLs suggest an attempt to redirect users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://seumenha.ru/strik?utm_term=4+examples+of+operating+system+software PDF link annotation
- https://muzitotixigo.weebly.com/uploads/1/3/1/4/131407705/kobinox-pifeki-bivasefu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4461786/normal_602636ce47a30.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501364/normal_601a6688234f6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4422147/normal_5ff0be25db81b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481270/normal_5fcaf967e6d15.pdfIn PDF document text
- https://nopetozu.weebly.com/uploads/1/3/4/5/134507327/luridupozikuz.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365525/normal_602ecde2ad5a9.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://sulumasofip.epizy.com/xediga.pdfIn PDF document text
- http://peworesafasar.epizy.com/risk_management_example.pdfIn PDF document text
- http://verirajoxa.epizy.com/almighty_coach.pdfIn PDF document text
- https://d54d55f4-8004-4613-9f19-7b96cbed0ae7.filesusr.com/ugd/ce4b32_9f2e061ed5aa4557820fa56c302e997f.pdf?index=trueIn PDF document text
- https://aa4c2489-c93b-4667-afab-104bf5323bad.filesusr.com/ugd/8b49c6_6764e1f7998a405f99a270b90c379bde.pdf?index=trueIn PDF document text
- https://aa3bb5c3-2bd4-4791-9e2a-6e31d5009b04.filesusr.com/ugd/60e703_1917932e5e69457080caadf8c350387c.pdf?index=trueIn PDF document text
- https://08b4a39d-fa16-4eaa-91be-ae90003cacb9.filesusr.com/ugd/237bf7_b024781805674ab79d42b55474b0b013.pdf?index=trueIn PDF document text
- https://5663e088-3595-439c-971a-5873693bee35.filesusr.com/ugd/e98895_7a8516509cfe4c00a2e21dac7a51d89b.pdf?index=trueIn PDF document text
- https://4a1fbaa0-0e67-401b-a466-96699e2e5642.filesusr.com/ugd/9647bf_6867940bdcff48768dadeea85564ccea.pdf?index=trueIn PDF document text
- https://e25b7b56-d8f7-44cb-9276-56428e53d1cc.filesusr.com/ugd/63f3e8_f53f06dfa3e4417bbb1f253af2749e21.pdf?index=trueIn PDF document text
- https://8a83ad47-1dc6-4e38-b726-138de0fe4a7e.filesusr.com/ugd/043c68_10db3d6c3739457d8df5251424c0e6a1.pdf?index=trueIn PDF document text
- https://eed7fa7e-4f31-4ba6-8269-e73f07ac74c5.filesusr.com/ugd/93374d_9f3ce974fa1846ec94176d0518e0794d.pdf?index=trueIn PDF document text
- http://dogumimuzelu.epizy.com/92024648712.pdfIn PDF document text
- http://kopepupofi.rf.gd/kopararupenosiwexi.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fff2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFF2 | 5476 bytes |
SHA-256: 7c1621707ff747df4b5e19ce6b2041d164d57e7db9e4f82115bd0414599c5b65 |
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font_01_sfnt_off000112a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112A1 | 10532 bytes |
SHA-256: eaa11f52f5207bcc316be83dea249c806fbe2178bbb15921aa8276f5954f7ecb |
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