MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to potentially harmful sites. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://gilendor.cz/userfiles/file/42792391655.pdf
- https://cfi-registration.org/buzzboxgift/img/userfiles/files/73901641225.pdf
- http://www.fuchingrading.com/upload/file/jemejugetetevivufadudubek.pdf
- https://globalcircle.club/userfiles/file/jojozevikituk.pdf
- https://emenu.hu/editor_up/55193664631.pdf
- https://faktxeber.com/resimler/files/91495559400.pdf
- http://enricobarraco.com/files/pidifimilavuba.pdf
- http://khachsandomino.com/hinhanh_fckeditor/file/64938825484.pdf
- https://cian.hr/userfiles/file/tukonijavuzulogevoxagunox.pdf
- https://lostsoulsmemorialnj.org/wp-content/plugins/super-forms/uploads/php/files/27cad4aff416620de1bb547de68a058b/buvodesexinafilasumato.pdf
- http://anipetkingdom.com/webroot/img/files/64974016819.pdf
- http://zhizhencn.com/filespath/files/20210904211242.pdf
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16138a62231d54---98040438783.pdf
- https://windscrm.net/files/file/jegeviwinigorobi.pdf
- https://tgvl.in/uploads/fck/files/70468846132.pdf
- http://songhakbbq.com/uploads/files/70445300904.pdf
- https://tuoitre.bacgiang.gov.vn/lib/ckfinder/files/85096936918.pdf
- http://krakow4you.pl/krakow/files/25441390352.pdf
- https://southafricapools.com/contents/files/60856741999.pdf
- http://camberwelltaxi.com/survey/userfiles/files/95945861683.pdf
- http://worldsocialistpartyindia.org/ckfinder/userfiles/files/63614117095.pdf
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/nfh1rtrgl407flcj4crbq88pet/96356537557.pdf
- http://wingprocess.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nomezuvaworifedanilizad.pdf
- http://burbank.kopanramen.com/uploads/files/lozolo.pdf
- http://villa-margherita.biz/userfiles/files/nalazilibadi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=disney+infinity+2.0+toy+box+for+android
- 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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c216.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC216 | 16792 bytes |
font_01_sfnt_off0000da28.bin332bb5b78e557eb0874256d57d1e5486540a6009c8a6b9caa5410b74321e61a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA28 | 16980 bytes |
font_02_sfnt_off00010619.bin61258ceff552cd83bcf3de92fc718cc791dfa4868f94bb41de5b386ca3534cc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10619 | 10964 bytes |
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