MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation scheme. One URL, 'https://wastran.ru/pbw?utm_term=secondary+geography+form+1+notes+pdf', is directly embedded, and the document body, though heavily obfuscated, contains metadata related to PDF generation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
Heuristics 6
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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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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 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://wastran.ru/pbw?utm_term=secondary+geography+form+1+notes+pdf
- https://vurejubi.weebly.com/uploads/1/3/1/4/131454114/jagapobaxepu.pdf
- https://zaridonuxubotu.weebly.com/uploads/1/3/0/7/130775126/5732515.pdf
- https://bijepete.weebly.com/uploads/1/3/4/3/134378827/weniga.pdf
- https://fadafiwu.weebly.com/uploads/1/3/5/3/135302778/eaaebacd35b.pdf
- https://mirebaxowani.weebly.com/uploads/1/3/4/0/134017623/7463138.pdf
- https://zejifibesus.weebly.com/uploads/1/3/4/5/134586543/solokuwekagowu-vedotesosiref.pdf
- https://fudamugifotud.weebly.com/uploads/1/3/5/3/135323440/7462645.pdf
- https://bowefolezoz.weebly.com/uploads/1/3/1/4/131407704/bupifirere_memovur_fifotukojo.pdf
- https://ladubikoniku.weebly.com/uploads/1/3/0/9/130969526/99dfda68.pdf
- https://nawigabijaku.weebly.com/uploads/1/3/4/5/134599080/3904470.pdf
- https://xugojegisonixen.weebly.com/uploads/1/3/4/6/134684264/mipudazek-kufanuzeve-sirizozofob.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- http://guleribiko.pbworks.com/w/file/fetch/144680589/46827981457.pdf
- http://fufitiruw.pbworks.com/f/cheetah_dc_movie.pdf
- https://uploads.strikinglycdn.com/files/5b9b0771-8059-4aab-84bf-63299ec62b6a/95819512757.pdf
- http://nunaruribeg.pbworks.com/w/file/fetch/144418575/can_you_spawn_a_jet_ski_in_gta_5.pdf
- http://kufugaref.pbworks.com/w/file/fetch/145027359/linux_mint_xfce_64_bit.pdf
- http://fisukafetif.pbworks.com/w/file/fetch/144424986/tajutubufizadizojinokin.pdf
- http://wamewariz.pbworks.com/f/kaxiv.pdf
- http://garifukedako.pbworks.com/w/file/fetch/144844368/35809264960.pdf
- http://zajozote.pbworks.com/f/30432562179.pdf
- https://uploads.strikinglycdn.com/files/63c073fa-a66d-41e0-a08c-1d46aa653614/what_is_the_average_household_income_in_the_uk.pdf
- https://uploads.strikinglycdn.com/files/23207bef-71c6-49f9-975a-c61da73a003f/tupovuzozixijodumuj.pdf
- https://uploads.strikinglycdn.com/files/4be66e9e-a507-4f8b-ab57-0685ff242c67/51243662256.pdf
- https://uploads.strikinglycdn.com/files/1fb74338-0504-4626-a8d2-2f61e35fd9bc/57550049491.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00014eb7.bin3165753af037ae4eead60643a993996f23274af98ad60f408cab2eae63f1631e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14EB7 | 5532 bytes |
font_01_sfnt_off00016157.bina02077ffd157b7c546fe4cdb57936d7c3f7784747a88909991c3d98b7982392a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16157 | 11220 bytes |
font_02_sfnt_off0001870f.bin0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1870F | 4324 bytes |
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