MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to compromised websites, suggesting a phishing or credential harvesting attempt. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely provides instructions to decrypt a password-protected archive, a common tactic to bypass gateway security. While no scripts were directly extracted, the PDF structure and embedded URLs point towards a malicious intent, likely to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://krevue.cz/UserFiles/File/dukatiladadef.pdf
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cba8160a34d---xunapa.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160780425f3b01---43689935702.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/14948eb282c7d86a91d7df0fd877e738/wokuju.pdf
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/03cd8ffc048a6ac28d5533f6882edb4f/9824983243.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/1cefb57ada7e69211fe6b13ab2df6f6a/96391047855.pdf
- http://abnicum.ru/files/file/86977145588.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/d168f41711e6bcebdae3dcbb5c5422fe/65975016155.pdf
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/cd12b6b313551d8b14454adcfd1ac5f1/desuzubuxu.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160afdafc4eb4e---tiwuxizesezotusoja.pdf
- http://hatowo.com/app/webroot/uploads/files/84325653383.pdf
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/e659dce17aa74c56c76f18be3e5fc90a/leregukivup.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/615fe7c371e7f61a5314c0c8e2bd1b7b/ratizunelelezajapix.pdf
- https://acgroupenterprise.com/userfiles/file/bofaluperopebifulof.pdf
- https://centrosteadycam.it/wp-content/plugins/super-forms/uploads/php/files/d83c3ade89eaf163eee2b9ae491c27d1/milawovitapagerevor.pdf
- http://erex.hu/upload/file/dapilotebazebewola.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd3533b4a9---nimemi.pdf
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/72oa36bmjpb3oo0ep9rsggj8g5/gafufizavokiwotidawixa.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/75a7615deab0f5854257f20aade617e8/23865397933.pdf
- https://avela.md/userfiles/file/62874161534.pdf
- https://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/71fd5ca161626d3d272c7bae19c7e136/63103908215.pdf
- https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/f3b72b70ee83510e25ac3dacedce92e0/66238304630.pdf
- http://aweibel.com/Photo/file/48199934228.pdf
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb27b1542f1---87726584037.pdf
- https://peterdegendt.be/file/78427577653.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=removing+password+protection+from+excel
- 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_off0000ee41.bincb4e1ec6294abcb2205c476d71c72ad97807247949f082a057cf4d0035aac6b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE41 | 16748 bytes |
font_01_sfnt_off00011a09.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A09 | 16792 bytes |
font_02_sfnt_off00013220.binc1547940451495f6523ee73b45a2b7525e92d80a50e943cbefc18269f6569a83 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13220 | 11260 bytes |
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