MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to numerous external URLs, many of which are hosted on compromised or disposable domains. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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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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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 https://drivetripper.com/userfiles2020/files/49321730137.pdf In PDF document text
- http://ormansagszive.hu/upload/file/xulizalusugakuzosipalon.pdfIn PDF document text
- http://bonezi.morefriendship.com/upload/files/72153180152.pdfIn PDF document text
- https://incense888.com/uploads/files/202109101054162027.pdfIn PDF document text
- http://www.shjkyq.com/up_files/FCK/file/42814735060.pdfIn PDF document text
- https://myphi.biz/nbloom/fckuploads/file/lujiz.pdfIn PDF document text
- https://speedwayinfo.hu/uploads/file/dujinotigevadetalujava.pdfIn PDF document text
- https://kakakmanis.com/contents/files/56133662142.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/cc636sja2mt20a8lecro1p1tig/86612494873.pdfIn PDF document text
- http://mitsubishilongbien.vn/images/ckeditor/files/dufimoladudimap.pdfIn PDF document text
- http://ericshartman.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/90493254504.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/2cehk2a3qqok4j5cgpv04uk093/58215645671.pdfIn PDF document text
- http://china-hold.com/UploadFile/file/20210913221332370.pdfIn PDF document text
- http://dragonspond.com/uploads/files/tufexivudenoniwe.pdfIn PDF document text
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/161372c36b24a1---jobiruxesa.pdfIn PDF document text
- http://nhadatv.com/webroot/img/files/mizejamob.pdfIn PDF document text
- http://mariautonoleggiomarsala.it/userfiles/files/dewuliwafov.pdfIn PDF document text
- http://vstarmp.cn/upload/files/20210908_081633.pdfIn PDF document text
- http://lnv-cnc.com/userfiles/file/36891917684.pdfIn PDF document text
- http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/26259734301.pdfIn PDF document text
- https://danielfelber.ch/userfiles/file/20636456419.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/dilibagon.pdfIn PDF document text
- http://vincitydata.com/uploads/ckfinder/files/63022975737.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=b1+reading+comprehension+pdfPDF 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_off0000cb4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB4C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e35e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE35E | 18796 bytes |
SHA-256: 4af19296be101b373070931fc1ee90fac299ca15e468c0895123dea8edfd8e06 |
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font_02_sfnt_off0001142a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1142A | 11028 bytes |
SHA-256: b0c3a509f1a96d4d08897e9dff6c6117206cf9ad00c3d09094dc05be7116a3f6 |
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