MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was identified as malicious by multiple heuristics and an ML classifier, with ClamAV detecting it as a phishing trojan. It contains a large number of external links, many hosted on disposable domains like weebly.com, suggesting a link farm or SEO abuse tactic. The embedded document body text is heavily obfuscated and appears to be junk data, but the presence of numerous external links points towards a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://krisoc.ru/pbw?utm_term=realidades+2+capitulo+8a-1+answers PDF link annotation
- https://zuzedunili.weebly.com/uploads/1/3/4/4/134460484/78f7053d.pdfIn PDF document text
- https://bupulaserora.weebly.com/uploads/1/3/1/4/131437689/50658563a0d77a9.pdfIn PDF document text
- https://josabinisepev.weebly.com/uploads/1/3/1/4/131452942/cf81c359ce299ee.pdfIn PDF document text
- https://pawunotapi.weebly.com/uploads/1/3/1/4/131408062/1811908.pdfIn PDF document text
- https://vidigesiwixir.weebly.com/uploads/1/3/3/9/133997627/dumanijipiwijoj.pdfIn PDF document text
- https://talesana.weebly.com/uploads/1/3/4/8/134878252/2958024.pdfIn PDF document text
- https://zerurejapom.weebly.com/uploads/1/3/5/9/135964845/2566275.pdfIn PDF document text
- https://tukojokub.weebly.com/uploads/1/3/4/5/134513360/3369097.pdfIn PDF document text
- https://tegeluvosuvu.weebly.com/uploads/1/3/4/8/134873603/joxegajinor-tevelutunog-rixavupurabo-gesabe.pdfIn PDF document text
- https://xovewelokajefi.weebly.com/uploads/1/3/4/8/134864882/kutinuvotekogoxukid.pdfIn PDF document text
- https://somukenevibo.weebly.com/uploads/1/3/4/5/134525583/9703420.pdfIn PDF document text
- https://ruvezidarumova.weebly.com/uploads/1/3/1/3/131380493/4241431.pdfIn PDF document text
- https://gedibixofesona.weebly.com/uploads/1/3/4/6/134688069/mofamudasude.pdfIn PDF document text
- https://joxenawofin.weebly.com/uploads/1/3/4/3/134342561/9a17469349.pdfIn PDF document text
- https://vugesajovor.weebly.com/uploads/1/3/4/2/134265649/lezilofepepitum_vuxuneforovof.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://pajinap.pbworks.com/w/file/fetch/144495666/kmelerde_kesiim_ve_birleim_zml_sorular.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ee0c270c-70a0-4dd2-82cf-d17c04aeac05/afpsat_e-portal_online_registration_form.pdfIn PDF document text
- http://zuwofig.pbworks.com/w/file/fetch/144643194/32699372889.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9541f239-f5a2-43e2-9277-d771887bf2c7/xotot.pdfIn PDF document text
- http://tirotibixup.pbworks.com/f/91595423613.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b5a27018-de0c-4b96-9577-7930bdd7ae5e/juegos_para_nios_de_primer_grado_de_primaria_educacion_fisica.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_off0000cc8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC8C | 5576 bytes |
SHA-256: bd774a78771ec4f2660b4f99c50cff79820aab96909cf5089102de0d38f8f0f1 |
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font_01_sfnt_off0000dfb2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFB2 | 11296 bytes |
SHA-256: 75159402051a38367846022f3613af024f9ebbf76fd32e3898049bfd21524ebc |
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