MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. While no scripts were explicitly extracted, the nature of the embedded links and the heuristic firings strongly indicate a phishing or malware distribution attempt.
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://yulintimber.cn/d/files/21406685204.pdf In PDF document text
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160abf7d47a2b9---fidamonejenavajemi.pdfIn PDF document text
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608139f4ee4c7---59202315411.pdfIn PDF document text
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6fedeec369---dodiwumetitewusiribo.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/8s3ekubpgm667ncn126ebon652/7049835546.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/0qrq86msb5q4lbajkvuqtt8b3c/24991217868.pdfIn PDF document text
- https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/ibjhcoag6r9hiaj0vpl31126dl/goziromav.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607188993af0f---78294060951.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad59360e882---jomelavodoxeninu.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160e232201186e---33350464323.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/s4vesqal77uqs52fngfhpa14qr/dokaxisifegi.pdfIn PDF document text
- https://iguanapools.com.au/wp-content/plugins/super-forms/uploads/php/files/vad2qmitgavjfh797734flfqba/gagamaxunegew.pdfIn PDF document text
- http://historia-bfured.hu/userfiles/file/31583256863.pdfIn PDF document text
- https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/c8kt5gf3llmk5liqka4713tag7/41156567620.pdfIn PDF document text
- https://hotnews.md/upload/userfiles/files/mefupitu.pdfIn PDF document text
- http://urjabatteries.in/userfiles/file/85704607098.pdfIn PDF document text
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085fb20a1dae---41008158278.pdfIn PDF document text
- http://qytbearing.com/upfile/file/bogenaluxafefibodi.pdfIn PDF document text
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/af39251fc74eae4707cab709b0572a74/93931848540.pdfIn PDF document text
- http://consulcongress.it/uploads/assets/file/zabose.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3a1dc896b1---vejubuw.pdfIn PDF document text
- https://bbpartner.cz/userfiles/file/vafuwadiv.pdfIn PDF document text
- https://jaiminsales.com/ckfinder/userfiles/files/kefus.pdfIn PDF document text
- https://avigailpekelman.com/sites/default/files/file/rivudaminorux.pdfIn PDF document text
- http://karat-dobremiasto.pl/userfiles/file/81627169715.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=star+and+mesh+topologyPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e731.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE731 | 17384 bytes |
SHA-256: f32efbfe25c8e8c5d8b76c544be0f136d549bc5f0e593c9cfb61127c23184dce |
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font_01_sfnt_off000113f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113F0 | 10936 bytes |
SHA-256: 6a0d59e3a4b77955c45d153a4b6f6920f21b3137f3b57b9af95c1f26e9d1c49c |
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font_02_sfnt_off00012cdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CDF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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