MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many pointing to other PDFs hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. One of the initial URLs, 'https://crophysi.ru/wix?keyword=jewelcrafting+guide+1-450', is flagged as a known malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://crophysi.ru/wix?keyword=jewelcrafting+guide+1-450 In PDF document text
- https://cdn-cms.f-static.net/uploads/4402501/normal_603bce6107102.pdfIn PDF document text
- http://mitutepoka.medianewsonline.com/bajebatizalonebok.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4474231/normal_5ff531328d8ab.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4530151/normal_5fc8142750301.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386347/normal_6030ee5bbf948.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4381738/normal_5feff949e5485.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377924/normal_601be1f9d3193.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4376087/normal_6000ccf2b6fd0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4475215/normal_5fe5cfb59ed61.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427095/normal_600d03aaa2e96.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365536/normal_60375d12e6a6d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444117/normal_6022c715ed652.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408595/normal_5fdbfada66466.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4428329/normal_5ff5ae2d7c9f7.pdfIn PDF document text
- http://fejugutafilevin.scienceontheweb.net/84815289375.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465402/normal_601c8d836e19a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4484804/normal_6029fb8accacb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://c064424b-11a8-4e39-a524-24a74bcd733d.filesusr.com/ugd/54e393_82d98cb4f8ef4f8ca02db9373b004b70.pdf?index=trueIn PDF document text
- https://e0eedba4-cf99-4c42-97f5-d3f9ae5832dd.filesusr.com/ugd/e36ea7_76342281dfd042b1965eca2ede813032.pdf?index=trueIn PDF document text
- https://0879403c-3be5-48e4-925f-21334a7d5cfe.filesusr.com/ugd/407fcc_e81eb295bbe34347a4661b8e78a24e30.pdf?index=trueIn PDF document text
- https://665985ba-8e9f-4173-b993-17a3090d61d7.filesusr.com/ugd/08421c_2a6fd496ec984dc6b53133e984e95ece.pdf?index=trueIn PDF document text
- https://edb7bb8d-792a-4213-93ec-7f573d37cc74.filesusr.com/ugd/bfd504_477b003b4ac64cf8a3c717a2d333fa20.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_off0000f1bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1BC | 5528 bytes |
SHA-256: 373f135c853cb60293f3852c7ca61c0d666d179a463e96ab10298c86ea963ba8 |
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font_01_sfnt_off000104c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104C1 | 10668 bytes |
SHA-256: a7d191bb3733cb8483fab3ef95747bd960334cf9eba5d24adbe2b80a5988a3d7 |
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