MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classification and a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The file functions as a link farm, containing numerous embedded URLs that point to various websites. Some of these URLs are hosted on compromised CMS upload directories or appear to be on disposable domains, suggesting a phishing or malware distribution scheme. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9901
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://sixtyguildersresearch.com/admin/photos/file/kisigol.pdf
- http://vtvxm.vn/userfiles/file/56482743098.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/79d7e91cf864ddb3ae987aebed3f9bdd/satezasunazar.pdf
- https://medicentrumnz.eu/medicentrum/files/file/pagasawixidopusuriwigi.pdf
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/5seov44p09jqd3goglnv521bf4/82441846818.pdf
- https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/d62688e436018dc1b071249e8a9a7c67/xilebesoputurew.pdf
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa9a78239a---zasagolumaxupesesomijava.pdf
- https://antae.be/app/webroot/uploads/file/vowokititisumemogebebul.pdf
- http://msamerica.net/clients/873634/File/wuvikizifitoxizibawe.pdf
- http://anthonyvienna.com/sites/default/files/file/21840286204.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cfd9f2dd3e---fuvegovavoxuleretopedigiw.pdf
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/cde3b585dc046f9564ede6a3a4ff96b9/wemubopivivixiritopij.pdf
- http://k-souz.com/userfiles/file/wivezapivuvusigowotodexex.pdf
- http://rgn2u.com/userfiles/files/xovusedinomasulamilitokig.pdf
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f45345db46---rabivufapimenogukiz.pdf
- http://billsky.ee/files/file/15407090985.pdf
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1609197847d5ef---91704681472.pdf
- http://fogathajtohirek.hu/fckfiles/file/nagared.pdf
- http://pogservice.ru/userfiles/file/bogawotedesijor.pdf
- http://unseenadventure.com/userfiles/file/23368528806.pdf
- https://sankohomestay.com/userfiles/files/23992029789.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=wade+qu%C3%ADmica+org%C3%A1nica+9+edicion+pdf+gratis
- 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_off00010af8.bin8339c2a270e478c72fbd5f14054ffeb5b2362a610f8341026076205c13e72315 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AF8 | 18208 bytes |
font_01_sfnt_off00013957.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13957 | 16792 bytes |
font_02_sfnt_off0001516e.binff7bc8d96c3d5146f98fa31919422d5f91e8c46551a7942fde22ffea01250414 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1516E | 11568 bytes |
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