MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a large number of external links, many of which are hosted on disposable domains, indicating a link farm designed to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggest this malicious intent. The ML classifier also flagged the PDF with high confidence. While no scripts were explicitly extracted, the presence of numerous external links points towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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://jacksth.ru/award?keyword=cv+formularz+pdf PDF link annotation
- https://rewemekekebaz.weebly.com/uploads/1/3/1/4/131406535/1380962.pdfIn PDF document text
- https://firiwipavixura.weebly.com/uploads/1/3/1/4/131407767/zakisitosoduj-ruxarawava-gekikigixod-rubojezenalile.pdfIn PDF document text
- https://fosogaji.weebly.com/uploads/1/3/1/4/131455903/ruvatavoxexe-gepobegazek-zowimuwik.pdfIn PDF document text
- https://rurujopolobadez.weebly.com/uploads/1/3/4/4/134444805/2283335.pdfIn PDF document text
- https://ruzisatof.weebly.com/uploads/1/3/4/7/134734885/jewozerarududa.pdfIn PDF document text
- https://lojopozubog.weebly.com/uploads/1/3/1/6/131606756/5631341.pdfIn PDF document text
- http://vatemuredaxusob.22web.org/aditya_hrudayam_stotram_in_malayalam.pdfIn PDF document text
- https://xuxixoxeniti.weebly.com/uploads/1/3/4/5/134585484/134acf3e0a8.pdfIn PDF document text
- http://natezaka.iblogger.org/kevaxipejetaniduj.pdfIn PDF document text
- https://lusimijibujadex.weebly.com/uploads/1/3/4/6/134677052/5698389.pdfIn PDF document text
- http://disupata.iblogger.org/55544020507.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://xenavak.rf.gd/zodarujowazo.pdfIn PDF document text
- https://s3.amazonaws.com/welanisowari/20575740496.pdfIn PDF document text
- https://75edee45-cd08-43cb-a752-0c33e5c2343f.filesusr.com/ugd/a7c173_32e1903b8d4a4552bb772a636003befa.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/toguvaju/norton_antivirus_for_mobile_phones_free.pdfIn PDF document text
- https://ce322291-b3da-4cc2-ae0f-523e25daec44.filesusr.com/ugd/4530da_d2637b4b837f4fb09dc641582c7c542b.pdf?index=trueIn PDF document text
- https://21c505bb-01ca-4817-a549-4ed1ebba5040.filesusr.com/ugd/7d7105_d00030bb7aa248ffa31a4e9452d8e073.pdf?index=trueIn PDF document text
- http://lumugexov.rf.gd/72745680547.pdfIn PDF document text
- https://71a5d838-4e22-4830-8da1-7955ec3365f5.filesusr.com/ugd/f2f43e_927b72e3630047daa9549c5ec7e615d1.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xutomoxu/introduction_to_psychology_course_objectives.pdfIn PDF document text
- https://b7e73dfe-ad35-4791-b4f7-7500f5b7882c.filesusr.com/ugd/bc79a4_21e039cada464034a5b64788c0391207.pdf?index=trueIn PDF document text
- https://f200304d-316b-45a9-b05c-680123ec6d1a.filesusr.com/ugd/aad1a2_6cb7ce93508a4c28bd165a395c180c0a.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/muwomapotumugi/giwanorik.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_off000103b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103B6 | 5024 bytes |
SHA-256: 3f5b7fc1d31f2e7e202c46a2bf821d8df5033b891c93fdcc8b77f62ffd01dc7e |
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font_01_sfnt_off000114c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114C4 | 11984 bytes |
SHA-256: 2dbf6e1f27568d7b033c584f4d7f41288ff35c63970534f3de0bf33447c52203 |
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