MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm hosted on compromised CMS uploads, directing users to potentially malicious PDFs. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://richmore.kr/uploadfile/fckeditor/file/25668262018.pdf
- https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/8ovdv8su4d4os9gupbeqghttjb/wumesimeroru.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160730bd9192e9---malotemufomov.pdf
- http://3q1p.com/upload/file/2106180622572676275c28aol175d6.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083644401ee3---rebewevividosav.pdf
- http://bbfederico2.net/userfiles/file/93153988240.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607d45524cffc---kilulisov.pdf
- https://villatoscana-pi.it/userfiles/file/36585077601.pdf
- http://murasakijr.com/uploads/files/59697528829.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073f90f1daba---xuviwakupesexenove.pdf
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/4006a4b3875c2eb65e602ed560a91213/36337761042.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/napu9e5otk7f0fpq5l447e0f85/2314192822.pdf
- http://naturallabs.fr/userfiles/file/79365482857.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/2f6c42fd664e5270c8278ba6333cb800/62172204670.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1607100f3c6712---54629116219.pdf
- http://mediaworld.pro/ckfinder/userfiles/files/34036766713.pdf
- http://allprintusa.com/admin/images/file/29101389425.pdf
- https://tonwen.org/userfiles/file/bunana.pdf
- http://altiro.nl/home/tjerk/file/93889518828.pdf
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/b3b54fd0c4d4d8e15261f306d419c3cb/55472824691.pdf
- http://cdseoulps.com/uploadfile/fckeditor/file/31835733652.pdf
- http://files.ibiza-ferien.de/file/soxesa.pdf
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16084198a143e9---21060842100.pdf
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608541b64a9c1---87087778220.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=cpa+ethics+exam+answers
- 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_off0000e72f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE72F | 16792 bytes |
font_01_sfnt_off0000ff46.bin1c0ad6275e0107cc62bd43cef1ec7cb72ab4735d3e277216cb0eeaa0fff37644 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF46 | 10692 bytes |
font_02_sfnt_off000117b7.bind60ec755881e2cc42e1d77c0b3032aa8b752690f6bb07312a42f1ab443931f71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117B7 | 17524 bytes |
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