MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The PDF structure and embedded URLs are indicative of a spearphishing attachment, likely leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://irinaburmistrova.ru/files/14925832410.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/g2d0ab6bq07ggbkd2t1a08i1nq/xowumevejenifufijogopuz.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/2dof5sd78n8gjs9l51kj0g6694/rogujigedonedopib.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d843e78f55f---39089116604.pdf
- https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/f36d1bcce6e0930204591e81b4eb8085/milizesuvis.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160c6c5137dddb---98033988938.pdf
- https://kaptenhoki.net/contents//files/63568589534.pdf
- https://kenadong.com/contents//files/33493603858.pdf
- http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c957f996aee---54502148180.pdf
- https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/be3939561b99613d8d669293460ccfd7/siruzod.pdf
- http://centroolosprato.it/userfiles/files/53714617121.pdf
- http://tubietelbar.hu/uploadfile/86260411683.pdf
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16070d2d348ab1---merawexaxamaxulanit.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609c36f1e4730---lisaxukeboke.pdf
- https://www.hamburgeriaagricola.com/wp-content/plugins/super-forms/uploads/php/files/au2l1a680b44642sjrdul8oe9k/31408103901.pdf
- http://brezov-gaj.si/uporabnik/file/78462069916.pdf
- http://xn--m1age8bh.xn--p1ai/files/file/devedu.pdf
- http://travisreunion.com/clients/1/1d/1d9c560ef9ee6310b862f4c9d288d7bd/File/pinemipegezewaw.pdf
- http://alexlunacoach.com/img/editor/file/33615945457.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d7578c484---5012166373.pdf
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/3cmvnoa1ng4qhrls7qv4m2dtc3/35286304712.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/16074dbb5b07c8---poxaziredosafagoxox.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075318adb278---15958229302.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=reflex+action+with+diagram
- 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_off000112df.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112DF | 16792 bytes |
font_01_sfnt_off00012af1.binc595b6ae2f2e06a775901ac796c136ba700157b5c4ee99f983c974f6b6d2fd0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AF1 | 17268 bytes |
font_02_sfnt_off000157f5.binb0e12296face1a013eadd13b587807d8f775edf068e049860c99ad004603233e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x157F5 | 10988 bytes |
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