MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, and exhibits characteristics of a callback phishing lure by prompting the user to call a phone number. It also contains numerous links to potentially compromised websites, suggesting it may be part of a larger phishing infrastructure. No scripts were extracted, but the PDF structure and embedded URLs indicate a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://stadtbild-intervention.de/Quansis/ckfinder/userfiles/files/waloxabuxew.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910dd321613---65971711533.pdf
- https://letstravelforacause.com/miet/assets/files/63776050916.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb01085773---jowakize.pdf
- https://scapetime.net/images/website/user/files/sotoxikorumubexugeguso.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a699d6e3d0e---80933379660.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/c05c68b4e419a885fb8a556448d6106d/zevinemigen.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/ci3oakska6o12erem7ll12e465/mukus.pdf
- http://urgentcarepb.net/userfiles/file/savilaginavifasoxedep.pdf
- https://standsimulator.com/ckfinder/userfiles/files/bowolewumigivirek.pdf
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e579713f0---fetifazolenixatokudolofud.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c5cbf8d7854---jolamekumamuxosozaxo.pdf
- http://maydangson.com/vietkiendo/upload/file/17499455503.pdf
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9c85ae2dcc---parodo.pdf
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1609e3343dc06e---5237018265.pdf
- http://phuocthuan.vn/images/pic/file/7115802812.pdf
- http://www.siscbolivia.com/admin/uploaded/fck/file/34984078183.pdf
- http://dilimkebab.com/userfiles/file/29598352844.pdf
- http://studioriggio.it/userfiles/files/zulakexutosumorebewupomof.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/b7f2858b7365df3224f0e6565d418b7b/76791368942.pdf
- http://wellfoto.cz/pictures/files/davatoratoxavevas.pdf
- http://qtjdb.com/UploadFile/2021/07/20/file/20210720_094100_141.pdf
- http://oaklandscreche.ie/userfiles/files/83407564864.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=how+to+attest+certificate+in+india
- 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_off0000ebbe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBBE | 16792 bytes |
font_01_sfnt_off000103d5.bine9b89fc423eff4cfdabded74a475d2ea6286e5a18207119261c609ee68df310b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103D5 | 10500 bytes |
font_02_sfnt_off00011be2.bin03f28529787fe04675650a02daecd147601640f296e299de3375971cbc555bf4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BE2 | 17468 bytes |
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