MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
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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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://crophysi.ru/123?utm_term=autobiography+samples+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4369164/normal_60110f66ab367.pdfIn PDF document text
- https://bijoxopibomer.weebly.com/uploads/1/3/4/3/134325560/e719f34.pdfIn PDF document text
- https://gebawifu.weebly.com/uploads/1/3/1/4/131483167/zowiso.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370054/normal_60402646efcb7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375503/normal_601712c390a22.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4428341/normal_60323c9bc0393.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481400/normal_5fced95116392.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378379/normal_5fd3cc7b4f883.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4464874/normal_5fee495c93872.pdfIn PDF document text
- https://wozagasogudizi.weebly.com/uploads/1/3/2/6/132682295/dumavupo_tomodurov_kowuvepexaxum_mawolik.pdfIn PDF document text
- https://suxugugufagiwa.weebly.com/uploads/1/3/4/7/134740592/9180831.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://bufezesaj.epizy.com/riveti.pdfIn PDF document text
- https://s3.amazonaws.com/fapaga/82767746094.pdfIn PDF document text
- https://f6e2a16f-d004-42cd-8f17-0463e090774c.filesusr.com/ugd/c70c35_7caf6c75972d449eb370e58c1825cafd.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tobito/balance_scale_equations_worksheet.pdfIn PDF document text
- http://puvuvijafu.rf.gd/18387977157.pdfIn PDF document text
- https://911f1565-2faa-4874-b261-330d521e7362.filesusr.com/ugd/f46427_7a854ba39b2b46eca0c7963be215b002.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/sixenogafopoj/nra_bullseye_target.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
- https://savannah.gnu.org/projects/freefont/In PDF document text
- http://www.gnu.org/licenses/In PDF document text
- http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001026e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1026E | 6568 bytes |
SHA-256: 792e288023e4fbe73a0351c4e4cf94c19217598e688914c0413f09f13c1160d5 |
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font_01_sfnt_off000112bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112BB | 5688 bytes |
SHA-256: e70b2c85b198789f428fd7c4c522571f7614505024176889a2a208562b493df6 |
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font_02_sfnt_off000125e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125E8 | 2236 bytes |
SHA-256: 333be68832cf78dbb406e2542f112ea99daf6f5dc3d8f915ab9158e328b3f484 |
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font_03_sfnt_off00013001.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13001 | 10796 bytes |
SHA-256: f3aaa79aac0d52409cd5bf6c7807f0698ea1f63b0856b611623f2f95e00d622b |
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