MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ML classifiers and ClamAV, with critical heuristic firings indicating it is a phishing trojan. It contains numerous links to potentially compromised websites, suggesting a phishing or malware distribution scheme. The PDF structure and link farm characteristics point towards an attempt to redirect users to malicious content hosted on disposable or compromised domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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 http://xn--dlek-5qa.com/admin/UserFiles/file/75928966956.pdf In PDF document text
- http://chapelguild.com/images/usr/55672191499.pdfIn PDF document text
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e4e0261ef8---95365599540.pdfIn PDF document text
- http://freehajjandumrah.com/admin/admin/uploadfiles/file/fupofosajulezezalegafigi.pdfIn PDF document text
- http://thuocnam.xyz/images/files/20624871491.pdfIn PDF document text
- http://aj-logistics.com/stock/userfiles/file/76357700815.pdfIn PDF document text
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c02db0c77de---zasilasuvataxi.pdfIn PDF document text
- http://usmleworkout.com/files/file/32099422142.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdfc99856dc---71050564408.pdfIn PDF document text
- http://happyhanool.com/ckupload/files/zebikemuzopi.pdfIn PDF document text
- http://bc-arman.kz/ckfinder/userfiles/files/56737186581.pdfIn PDF document text
- https://rajaketiga.com/contents//files/danixururafidi.pdfIn PDF document text
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/8708becc3e57e753a8dfd883c13bfff9/70038139550.pdfIn PDF document text
- https://webtraffic.ch/wp-content/plugins/super-forms/uploads/php/files/cts29rkika6vigut39he362gh0/78893884204.pdfIn PDF document text
- http://mutitar.com/user_img/files/26032027272.pdfIn PDF document text
- http://dwhs79.com/clients/15834/File/76381763062.pdfIn PDF document text
- https://propertiproperty.com/Uploads/userfiles/files/86886570932.pdfIn PDF document text
- http://daydreamspin.com/userfiles/file/fafoferasafafow.pdfIn PDF document text
- http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/58747694884.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c7710475a74---wegutupu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=how+to+increase+weight+diet+chartPDF link annotation
- https://medlineplus.gov/diets.htmlIn PDF document text
- 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_off0000d9ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9AD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f1bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1BF | 16596 bytes |
SHA-256: 195a745a10c0c621741074e63e0a05ca1c9d72a7acb4f6c637a2a67469bc2ac8 |
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font_02_sfnt_off00011cf6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CF6 | 10680 bytes |
SHA-256: b8c25ff940a692a16cd13b2ba66628d2614e9fd03da83d78d5a75b9766b7d812 |
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