MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to numerous compromised WordPress upload directories, suggesting an attempt to obscure the final destination of malicious links. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c05ecec6616---jiselozeselulexukivinun.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4e7d6a37b---kejajexudexi.pdf
- https://digireg.cn/upload/70428417071.pdf
- http://kimdaiphatsteel.com/Images_upload/files/78358050584.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5e04f3495---9098275078.pdf
- https://cdmsig1.com/ckfinder/userfiles/files/77157940876.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070c0fbd9755---jeberosewavexiwewosin.pdf
- https://agronlogistics.com/userfiles/files/daxelibokopi.pdf
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f20312118c---19935811148.pdf
- https://rybczewice.pl/userfiles/file/24341256325.pdf
- https://autoprofi.ua/userfiles/file/54572434106.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/64219598659.pdf
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/pdba2kgba8ola1ilo61aoroivs/23223924505.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cab327df6d8---85939058808.pdf
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/ca6cbe47cbda71c74481fb3411bc5e1d/walokevefupebasavi.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160851841535f3---karuvam.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2c92509214---77800666876.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/6c1d8052eab050b99afd000dd828f574/82248505786.pdf
- http://deurwater.com/wp-content/plugins/formcraft/file-upload/server/content/files/160854f5d057c5---26899265190.pdf
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5utt07h0530lkrl29qr8d16sk5/vajowodanakaberegob.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=anxiety+induced+ed
- 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_off0000f4ae.bin0f2084236daed902a1afdf499e8233b0a49ae75f31c8098104dfb27aa1821aef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4AE | 16936 bytes |
font_01_sfnt_off000120f7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120F7 | 16792 bytes |
font_02_sfnt_off0001390e.bin61f7718912670486bcfe4aa73776887132c4ad89a0a38fcdfaf84daab8769cfb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1390E | 10064 bytes |
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