MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a large number of external links, many pointing to disposable hosting, indicating a link farm or SEO manipulation tactic. One of the extracted URLs, https://bologen.ru/wix?keyword=learning+forward+summer+conference+2020, is likely part of this scheme. No scripts were extracted, but the PDF structure itself suggests malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://bologen.ru/wix?keyword=learning+forward+summer+conference+2020 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4474231/normal_6022a8f01c7d6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374860/normal_6022e7fd46464.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4455673/normal_5ff901096c679.pdfIn PDF document text
- https://womazineput.weebly.com/uploads/1/3/4/8/134895737/b7b9ade89.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478655/normal_6032f2682ed80.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452851/normal_60199e0f9496b.pdfIn PDF document text
- http://xapizokawe.iblogger.org/xexibe.pdfIn PDF document text
- https://wipabobape.weebly.com/uploads/1/3/5/9/135985954/penogo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://673fcb93-492a-40d1-a7cc-77260b5c7816.filesusr.com/ugd/62d21a_af240b586ef8444d8bc7f473882164d0.pdf?index=trueIn PDF document text
- https://bbf05351-1c49-455c-8ea8-df349977a4d5.filesusr.com/ugd/15c6d6_24b399432c8a46a59323f56eadb1bfa1.pdf?index=trueIn PDF document text
- https://a32e93c2-1aa3-4149-af29-aa5d163ab988.filesusr.com/ugd/40336e_efc28465ca4042cab92a85633af4fa74.pdf?index=trueIn PDF document text
- https://ebc1add8-0b9d-418e-9e4a-1e287827e933.filesusr.com/ugd/ab63e3_d14b0adc0c904ceeac85e578b1f4e282.pdf?index=trueIn PDF document text
- https://d8d691c7-cf48-432b-bece-a54604b57851.filesusr.com/ugd/1e3a4b_a6f5afcae4a24ce5b55d7eec226a0753.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/rebesudanolo/jobofegogepezevix.pdfIn PDF document text
- https://bf6af823-cb0d-4ee8-9d5b-4f0b1de5ed24.filesusr.com/ugd/9eb187_111e51ab77df44468f1851b19061e65e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nilafafakem/91254460522.pdfIn PDF document text
- https://3b87a2b8-2d13-4e6d-acc4-cbba57692a59.filesusr.com/ugd/50988c_65abaab4c7814bc2b1cac46b82f03bc3.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gedimuta/dots_and_lines_game_template.pdfIn PDF document text
- https://s3.amazonaws.com/nakuzafol/gumorovototofulaxaruku.pdfIn PDF document text
- https://441768bb-9839-4df4-8f78-dd1233b527f6.filesusr.com/ugd/7e6080_c846657a347548e1904ebe00c3539c04.pdf?index=trueIn PDF document text
- http://kevatudoritek.rf.gd/how_many_soft_wings_do_beetles_have.pdfIn PDF document text
- https://s3.amazonaws.com/sojuravewi/89450242881.pdfIn PDF document text
- https://cc67bef4-e22e-42fd-bf01-3f02b15f800b.filesusr.com/ugd/080020_6ee99f8ec72a403392d3541a7512e49f.pdf?index=trueIn 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_off0000f107.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF107 | 5616 bytes |
SHA-256: 94821f6f9ebdf5b90d649bd07b9913729e0fe9df00fdb9222fc02571a927b234 |
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font_01_sfnt_off0001042b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1042B | 11344 bytes |
SHA-256: 8603d95acb386ad107e8cdcd32c9f365e41f268a5de2aab8a48c6e0debcbe26a |
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