MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm pointing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. No scripts were extracted, but the structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://argyler.com/wp-content/plugins/formcraft/file-upload/server/content/files/160737be372a49---dezoxigila.pdf
- http://acecaalcoy.com/userfiles/file/14477965971.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b08d4b059---40563669595.pdf
- https://addsfly.com/userfiles/file/68128023992.pdf
- http://minerva-collection.net/files/files/41908906871.pdf
- https://98ing.com/upload/ck/files/20210726_141403.pdf
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607860451fd53---mupolerisor.pdf
- http://anhuizhkj.com/upload_fck/file/2021-5-20/20210520061434567842.pdf
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610087212ee0d---nedifodu.pdf
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077c1f6a2f0d---verewa.pdf
- https://alatheir.com/atheirwsfiles/file/rumibifapu.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/v4bb93gljoqtnr2udmj99r4b1s/73469672985.pdf
- https://acavacecio.it/userfiles/files/zetedetom.pdf
- http://madmojo.com/fckupload/file/57575513585.pdf
- https://cplastik.cz/data/cms/file/molifejodopokefigom.pdf
- https://pindimana.in/uploads/file/wukisoxukadubir.pdf
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16086e360bb83d---fisoxujejonexagumavuw.pdf
- https://penzionradvanice.cz/res/file/koxivureden.pdf
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/8504ece74307ca52afb692c298e971ca/23805093038.pdf
- http://study4student.com/cache/fck_files/file/73032543054.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16085d0ca2f7c7---davepa.pdf
- https://mmoxx.mn/userfiles/files/9161050942.pdf
- http://greddy.com/admin/common/ckfinder/userfiles/File/52314979528.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=td+to+int+ratio
- 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_off0001723e.binb6dcbdf1982f90071aeb78b25eff4238b270faa92dc64f7432275e1d75e0dfd0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1723E | 17468 bytes |
font_01_sfnt_off00019f8e.bina54cbe7dbe207483741f4342de9a6eab15661bddb65aab54f1197dd4aeb3bfd8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19F8E | 9860 bytes |
font_02_sfnt_off0001b54c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1B54C | 16792 bytes |
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