MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by a ClamAV signature and an ML classifier. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or SEO manipulation tactic. One of the primary external URLs is https://seumenha.ru/strik?utm_term=what+is+the+story+of+madame+butterfly, which is likely used to redirect users to further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
Heuristics 6
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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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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=what+is+the+story+of+madame+butterfly
- https://cdn-cms.f-static.net/uploads/4451368/normal_5fe7ca8783281.pdf
- https://static.s123-cdn-static.com/uploads/4450638/normal_5fe45a0ee7853.pdf
- https://cdn.sqhk.co/kofuvufexo/hiHhbRN/freewing_a-_10_thunderbolt_ii.pdf
- https://zoseduzarososu.weebly.com/uploads/1/3/2/7/132740870/2871463.pdf
- https://kaxemesotom.weebly.com/uploads/1/3/4/7/134732336/7268614.pdf
- https://pepomujotopulog.weebly.com/uploads/1/3/4/8/134873529/372b874495c3c9.pdf
- https://mimitokiwunas.weebly.com/uploads/1/3/4/0/134012498/tomuful.pdf
- https://cdn-cms.f-static.net/uploads/4447878/normal_6011d361017aa.pdf
- https://cdn.sqhk.co/zutomina/gf9kId8/pisekasuvapuxurelodolida.pdf
- https://tabutepapuwup.weebly.com/uploads/1/3/0/7/130740025/jidinukararawen.pdf
- https://cdn-cms.f-static.net/uploads/4366351/normal_6058b0e93f8b7.pdf
- https://cdn.sqhk.co/zotofoza/iiU1Ijh/33833164124.pdf
- https://static.s123-cdn-static.com/uploads/4372737/normal_5fca33fa59be8.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/017ef7ad-5b66-4680-95c5-31599fff64a7/how_to_write_summary_for_chapter.pdf
- https://7f993087-45f6-41f4-96e5-9dcaca18fb91.filesusr.com/ugd/9a92dd_d8674411be84494cbda628a129eac34e.pdf?index=true
- https://uploads.strikinglycdn.com/files/88385a83-a3ae-4f40-a0af-03d188b12c92/richmond_hot_water_heater_reset_button.pdf
- https://0e098354-e5d1-4afc-9be7-763a70ae5e44.filesusr.com/ugd/ef253e_68f346379ebe4617a42b6af4fddf23c3.pdf?index=true
- https://3b0fe5ff-7f86-489c-8138-fc984e51136c.filesusr.com/ugd/bfd78a_916eebc6091642238b8d6cc974466c36.pdf?index=true
- https://04a9e765-cf69-4035-9b9a-998d8fb4e692.filesusr.com/ugd/8c5016_e5347c5e92bc404f96bffc44528963c5.pdf?index=true
- https://uploads.strikinglycdn.com/files/9941c3cd-5952-4aaf-be01-d460fa0de234/maxojinevijosudepoganizik.pdf
- https://1fae3a98-13b7-4b95-b1f0-1fbd1b7b0aee.filesusr.com/ugd/1da05d_1ca359e004c34e17b6a8496c5e8f5790.pdf?index=true
- https://uploads.strikinglycdn.com/files/929d3e49-9c86-4c4b-aead-3ed422df4dd4/how_much_does_an_army_gas_mask_cost.pdf
- https://uploads.strikinglycdn.com/files/46cfc35e-dba0-4ee6-958d-8a93f3900040/20953784792.pdf
- https://f18b8dc1-3ce9-44bd-8712-01435d039869.filesusr.com/ugd/b97cba_e030ac4406084d9eb09f98e98309b450.pdf?index=true
- https://3633ae4e-9acc-45df-885e-1bfa1481cb44.filesusr.com/ugd/e73054_3ba68a694e104c72acb5651279470e38.pdf?index=true
- https://a1c9bafd-2917-4c1b-b79c-a4b44a941470.filesusr.com/ugd/f0f215_3c75b33019694423aa0c85ee9c8b05e0.pdf?index=true
- https://5a2ada08-5b6c-402a-b0df-3636415b461e.filesusr.com/ugd/434ae6_485cd530d4e14c74ac114f074a5ee7e2.pdf?index=true
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fc9d.bin2a258f24285618f38d3d387dba0280f67f018ab8d52d313c578e0d528d5c605a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC9D | 4248 bytes |
font_01_sfnt_off00010ba0.bin6743353909f8030c298a43b1831ee05a47b8e382a2b010a34e338dda4fe62c88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BA0 | 5404 bytes |
font_02_sfnt_off00011de3.bin6191c0e38a64ab3288f034cbf055b16a7ea71da24d7b1bb2f980e7292d76e05a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DE3 | 11056 bytes |
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