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 machine learning classifier and ClamAV, flagging it as a phishing trojan. The document contains a mass of external links, many of which are hosted on disposable domains, suggesting a link farm or SEO spam operation. One of the embedded URLs, 'https://leonvi.ru/123?utm_term=invitation+letter+for+business+meeting+template', is likely part of this malicious infrastructure, aiming to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://leonvi.ru/123?utm_term=invitation+letter+for+business+meeting+template PDF link annotation
- https://depopuxa.weebly.com/uploads/1/3/4/8/134893869/bapewegexenakufopo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369190/normal_605f3e2f3ce41.pdfIn PDF document text
- https://dexugagemer.weebly.com/uploads/1/3/4/7/134715037/5205363.pdfIn PDF document text
- https://gugebizibepowe.weebly.com/uploads/1/3/4/3/134364706/459aa4bacc9.pdfIn PDF document text
- https://wigopezejab.weebly.com/uploads/1/3/7/4/137499336/lefumupa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404488/normal_605d313139549.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500669/normal_6051fa89b9158.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459916/normal_604289a9c89ea.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/b2b1c4e0-a8fb-4902-9319-d90d74a1ef17/zizupalenadivu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/32f0beec-0ed8-46c6-8f61-bf3c64d5dd40/zojuwudufixupemupimug.pdfIn PDF document text
- http://nadupodifado.pbworks.com/w/file/fetch/144448578/kejurimirakonatawowimax.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a8e2247a-e027-4bd0-b371-2be5ab12a706/51357836075.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ba8219d2-2f3e-44dc-b612-86e2bf68820d/mujet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/65acaed0-f8f9-4b2a-a6d7-e999822169a8/jenkins_.net_core_unit_test.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1abfd4e2-01a9-4a67-afa6-5cf267313eac/67784992292.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4b345684-3649-4cee-b8d4-91e6681380c5/peuc_unemployment_california.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f70ecad2-7739-42d8-bb27-3a8fc2f8ef35/power_wheels_dune_racer_extreme.pdfIn PDF document text
- http://nikekuva.pbworks.com/f/fufeweseb.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c5609064-af11-4c99-9eab-360f991118f0/12011228422.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aaea1054-2c6e-4d3b-bfb6-02b242485c85/nokirixevupemejepi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/539174ff-0ff8-4594-ad1e-df325c851994/simple_rose_flower_drawing_images.pdfIn PDF document text
- http://jebodigezev.pbworks.com/w/file/fetch/144523548/xunot.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_off0000f1f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1F0 | 5240 bytes |
SHA-256: c21056162e2bbaef8ded86c7b8701a722b1345468ae569073e3d9cd3e2721c96 |
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font_01_sfnt_off000103ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103AC | 10388 bytes |
SHA-256: 051de5e7a0fea9dba68c4629168d5a7911afffb078744473659ee48af9ac37d1 |
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font_02_sfnt_off0001272f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1272F | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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