MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classification and ClamAV, specifically flagged as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to compromised WordPress upload directories. These links likely lead to further malicious content or phishing pages, indicating a multi-stage attack. The presence of external URIs and compromised CMS upload links strongly suggests an attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://medvor.ru/uplcv?utm_term=basic+hand+embroidery+stitches
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa7be794f52---kudomufurejesoziv.pdf
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606f0a52ea8e7---gisabonusimevusawa.pdf
- http://kco.su/userfiles/file/44830294168.pdf
- http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/070b880be79844fee82417d4b43b793f/10041030900.pdf
- http://timebank.ru/sites/default/files/photos/pagefile/54923855272.pdf
- https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c8d1d2d55---57890801068.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/rrau6p0hmh1gf3talvu0g4sla2/lixemomomi.pdf
- https://ankaratemizlikcim.com/depo/sayfaresim/file/siwuboritetewepobig.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcf45aaf92c---28073808805.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/c31875a94700b88e50776e5c13822e44/fumibupinetup.pdf
- https://www.varisistanbul.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606dc32c455b4---6422160815.pdf
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/emh3gnjk2hjbr08165cvj2lt66/28232591028.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/snm4obdbi4b6vhf0a04h0oa1k0/zawumirebapapiwugefejo.pdf
- https://migger.dk/userimages/file/20247628685.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607890c5df00a---20462096485.pdf
- http://constantemails.com/userfiles/file/1622657821gomobitodom.pdf
- https://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/dd3db3416becea06dfe49a2874963266/mokezof.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084e5e259609---jokaxuveguxesozu.pdf
- https://aspaeng.com/files/image/files/jovemesegerebil.pdf
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071e781b4cfe---97787500568.pdf
- http://adamslakeband.org/userfiles/file/39528091328.pdf
- 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_off0000e803.bin2d947b6b056ddf891dfd8c458a758e260a69f8f5a15aa0390940435a87366f1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE803 | 10896 bytes |
font_01_sfnt_off0001010d.binb4588b06dcc70765deb455400d575e337b39cb2c7bd93011bbb4132189a5f1f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1010D | 16492 bytes |
font_02_sfnt_off00012b96.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B96 | 16792 bytes |
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