MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It functions as a link farm, containing numerous URLs that point to external websites. Several of these URLs are hosted on compromised CMS platforms, indicating a potential phishing or malware distribution scheme. The primary attack pattern observed is the use of malicious links within the document to lure users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://databaze-zdarma.cz/userfiles/files/mejivofagibipebajisome.pdf
- https://floridainvestment.cz/files/file/fifotajopizemodat.pdf
- http://pnmanagementsolutions.in/uploads/84264597205.pdf
- http://shukokai-voves.fr/userfiles/file/69791751877.pdf
- http://ensky-chemical.com/upload/files/63120979667.pdf
- http://hyundai-baoloc.com/luutru/files/leduxisolawixe.pdf
- http://bubb.cn/up_file/file/bazowerilivixofepono.pdf
- http://pm-ural.com/uploads/files/kanumozubejunevemusuvi.pdf
- https://www.tahitotfaluovodak.hu/ckfinder/userfiles/files/xifamezomutide.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/r4jpq7j1e80es22d0qiko1vc12/xigaxojovazipatinamo.pdf
- https://vicareyou.com/userfiles/file/24187463687.pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16141a80a12737---95181091178.pdf
- http://radio-salsa.com/php/rs/filesupload/file/winapuporo.pdf
- https://kaowei.tw/image/files/20210916_013749.pdf
- http://www.ecrivains-consult.fr/easyonline/ckfinder/userfiles/files/gukiropupumuz.pdf
- http://allier-genealogie.org/File:/rujozuzebetewapewafas.pdf
- http://joyear.com/ckfinder/userfiles/files/pudurabadibaliraribuje.pdf
- http://cosmikkino.ru/sadm_files/xebazerabuloj.pdf
- http://tlumacz-francuskiego.pl/userfiles/file/supone.pdf
- http://profil-metall.de/content/uploads/file/33521979061.pdf
- http://pogotowienaukowe.com/Upload/file/45807369125.pdf
- http://0048.pl/48files/file/lekigusefuwisufasup.pdf
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/50347e5abe8e524741b84ce631d23d3f/92151669380.pdf
- http://maxgear.cz/webpagebuilder/ckfinder/userfiles/files/63420322510.pdf
- http://artdealer.vn/upload/fckimagesfile/0b84ec48eca8ec2ab540cfb169ae787d.pdf
- http://tmacfashion.com/ckfinder/userfiles/files/91411708075.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=just+build+unblocked+66
- 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_off0000d97d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD97D | 16792 bytes |
font_01_sfnt_off0000f18f.binc17ab540d09d27b8e3aae660cfca907dfdc30bcb37e79548352b963262a58e15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF18F | 18088 bytes |
font_02_sfnt_off00011fbd.bind42b971e5e8c0b3e3a1f4902d0f732a6126520ccafbef986c27e548495e41b3d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FBD | 10592 bytes |
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