MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites, likely to distribute further malware or phishing content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of using disposable hosting for these links, suggesting an attempt to evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/t9imq2l4ct3ib0ls5vq13iuos5/8757541765.pdf
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095c6ce882e7---7334398369.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d077867a61b---60335588099.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bae5e316e49---sozivujefoteguketudunu.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c908294affa---wotabirenus.pdf
- http://retroldn.com/userfiles/file/kavixegaxujubaniv.pdf
- http://grodgolf.com/clients/f/fd/fd83fa7079552abb47853a85229f74c1/File/28147968828.pdf
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/7be4ck5qb76kpl8ildrb7ad22n/78916164663.pdf
- http://techniq.ae/admin/uploadfiles/file/7690871353.pdf
- http://portalcom-b2b.es/img/user///file/_0514502001621526495.pdf
- http://alpha-th.com/userfiles/file/19002482482.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/83086198792.pdf
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/829d338efb4635361889d2cb1cbb3fcb/10460614447.pdf
- http://cancercareresearch.com/userfiles/file/39485223691.pdf
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f85190321---lazulugen.pdf
- http://antoniolescio.net/userfiles/files/19208245922.pdf
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/000e11a6a2a0674f1a31c38e2f440d14/pagasubefifilawanuxopuzi.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2f3655820---fesifivuxiwogatiwade.pdf
- https://tavio.ru/files/file/98317621954.pdf
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/dkhqrvf6mbefevk4kikj827iku/jatilowevilixid.pdf
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/daziworujulejidapilibobej.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/uep5mhbjdn1gn1q456n958bvga/bononozebik.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160908b4849ac0---9815190468.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=say+so+song+id
- 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_off0000be17.bin1745aa430e8ddbeeb656969590a8b4ceac8acc444793f1b26235799738e24dbf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE17 | 15668 bytes |
font_01_sfnt_off0000e672.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE672 | 16792 bytes |
font_02_sfnt_off0000fe89.binc45a19f6abaf2ddaf53baa6f2ec0b38d83036483ecb59c61d856cbb5033b1206 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE89 | 10236 bytes |
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