MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many pointing to disposable domains, indicative of a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or SEO spam. The primary URL identified is https://catamma.ru/pbw?utm_term=is+gcse+equivalent+to+b1+cefr.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://catamma.ru/pbw?utm_term=is+gcse+equivalent+to+b1+cefr PDF link annotation
- https://cdn-cms.f-static.net/uploads/4388156/normal_602a77f5ed118.pdfIn PDF document text
- https://ruxunomitebapat.weebly.com/uploads/1/3/1/6/131606858/1968773.pdfIn PDF document text
- https://baluwona.weebly.com/uploads/1/3/4/6/134611665/ea2cd6531062.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476783/normal_602551231e73b.pdfIn PDF document text
- https://wozuxepu.weebly.com/uploads/1/3/4/4/134478893/wixemorimejejag-pegerivun-totab-zofusal.pdfIn PDF document text
- https://lexodedibipi.weebly.com/uploads/1/3/4/6/134683920/rogagukexa.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388183/normal_5ff685989684c.pdfIn PDF document text
- https://disomigezet.weebly.com/uploads/1/3/4/2/134234605/rukenelemig_balitot.pdfIn PDF document text
- https://jumufewaxijakuk.weebly.com/uploads/1/3/1/3/131380308/6015564.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379844/normal_600c8ad8d4d07.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4466659/normal_6051f8ab47fa7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4471706/normal_600d4c43cdb1d.pdfIn PDF document text
- https://latitatuforuza.weebly.com/uploads/1/3/1/3/131398212/mokak_tekediloka.pdfIn PDF document text
- https://nugaginidej.weebly.com/uploads/1/3/4/4/134475369/pepafikapewatozirup.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/6ca336b1-dea3-4574-b360-34a0920ce6a4/83393434957.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9664e19e-c92e-4950-876a-23740bcd1639/granny_mod_menu_download_2020_android.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/53708d84-58de-40c1-898f-75296055fe81/71642086197.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a86e724e-bb44-4bca-8cd9-0d90ba9a8010/guwexeduxaxogode.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5a281e1d-9db1-49ab-a438-5f0e5fb376a1/37191424022.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b8251be1-fc31-4b75-9139-361c5123bdd6/the_art_of_color_johannes_itten_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f026a49f-1295-40a0-bc00-5e998d9130e9/how_to_reset_adora_dishwasher.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/de7942df-874c-452f-bb74-ad5f239a75ba/amazing_bible_timeline_accuracy.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e518.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE518 | 5248 bytes |
SHA-256: f40e37aa2b15fe9bbc567f413794d01742f193f764b96a31dbe3f6dd63ae35f1 |
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font_01_sfnt_off0000f709.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF709 | 10956 bytes |
SHA-256: 6af5899e45b6a80e3202329441ecbbc4f5b1d7e2dfbc4e505c580870b311e7f2 |
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font_02_sfnt_off00011bb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BB1 | 4324 bytes |
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361 |
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