MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many of which point to disposable hosting and are likely part of a link farm designed to distribute malicious content. The presence of a URL with 'avast+antivirus+android+premium+apk' in the utm_term parameter suggests a lure for users seeking software. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://kuzutuzo.ru/123?utm_term=avast+antivirus+android+premium+apk PDF link annotation
- http://fortysgjdk.fun/rujiwisudumuxojexeov1hz.pdfIn PDF document text
- https://xoxudepibedewem.weebly.com/uploads/1/3/5/3/135317482/6200579.pdfIn PDF document text
- https://libadelalisam.weebly.com/uploads/1/3/4/5/134579317/fbdd3659439.pdfIn PDF document text
- https://pezebojikunebal.weebly.com/uploads/1/3/4/3/134362674/014dfdcb.pdfIn PDF document text
- https://cdn.sqhk.co/puxezuxivas/ghjdHoa/mujetunejurasopaz.pdfIn PDF document text
- https://fazapezipomen.weebly.com/uploads/1/3/1/4/131453522/lavuvige.pdfIn PDF document text
- http://reassurez-moi-fr.info/75885245031xf52g.pdfIn PDF document text
- https://cdn.sqhk.co/zojudaje/wgd9TQD/bemugaxo.pdfIn PDF document text
- https://javisifuwo.weebly.com/uploads/1/3/5/3/135304639/43b6d676c84f04.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/ca57b413-d60b-49d5-b79a-e0e6a5a7bfbb/65826886586.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c967e0f2-b125-4c75-9a42-d906e247fb92/why_is_my_bluetooth_not_connecting_to_my_bose_speaker.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/733c22d8-0f3a-44f6-9d6c-0f912b184740/ikea_catalogue_2020_request.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b6838ed3-4f28-4580-b39f-d05669315f34/41209073158.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/034801b1-9934-46a3-9193-3f4fb07f853b/6864140632.pdfIn PDF document text
- https://s3.amazonaws.com/rikolesafuwofar/31342275614.pdfIn PDF document text
- https://s3.amazonaws.com/libeganot/xifobedivafoku.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5399e91f-8558-49d3-a264-013944bf8173/5836352238.pdfIn PDF document text
- https://s3.amazonaws.com/fajonubinomeder/xabebabonoxedoxun.pdfIn PDF document text
- https://s3.amazonaws.com/tawosutosuxi/free_printable_place_value_worksheets_year_1.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_off0000e5e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E8 | 3308 bytes |
SHA-256: bd251c4fe7b76216701b1c126905525d5d70db27517b00abe654639eebc9e123 |
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font_01_sfnt_off0000f1b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B3 | 5188 bytes |
SHA-256: 99be30e86cfbe6fa3e4c7ab8ee5178a4977f4b94d7bc8905468699f18c1bba1f |
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font_02_sfnt_off0001034a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1034A | 11952 bytes |
SHA-256: 846e2390e163e276f666aac61e97cb1cbb692bd8a9b2406ef9a1d80a1ea5bc3c |
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