MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains multiple links to compromised WordPress upload directories, suggesting it's part of a link farm designed to distribute malicious files. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document likely instructs the user to install or connect to a remote support tool, a common tactic for gaining unauthorized access. No scripts were extracted, but the presence of embedded URLs and the nature of the heuristics point towards a phishing or social engineering attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/o45u0rubimdfijcvch2qs087l7/nogal.pdf In PDF document text
- http://przychodnia-felinskiego.pl/uploads/editor/file/22501094537.pdfIn PDF document text
- https://tangentemag.com/img/file/8345330372.pdfIn PDF document text
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/aeaa3d4c7f591d59fe6579a08b8595db/vuwojamibebamaso.pdfIn PDF document text
- https://cafesca.mx/ckfinder/userfiles/files/33218608550.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b829022ba23---joranedobawogo.pdfIn PDF document text
- https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/65930d95bffd2c1ae91e5e1634513950/mabilifofopaton.pdfIn PDF document text
- https://alternativecarrepair.com/userfiles/file/58128894545.pdfIn PDF document text
- https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/94baa26adcfa07fd8e6a2d416fc2bbb0/20931112358.pdfIn PDF document text
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b6604fd46---58208598252.pdfIn PDF document text
- https://aydin-elektrik.com/resimler/files/21751702864.pdfIn PDF document text
- http://podlahypilat.cz/admin/file/buzitovurogukadetamumizej.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d2f97d2d96e---fudan.pdfIn PDF document text
- http://munsusa.org/userfiles/file/20210624035740.pdfIn PDF document text
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd56fe3dceb---lasavizotoweji.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a19582bc75c---88152496437.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/kimomorivegivaluzuwepa.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16072ec73b0f3e---jetonizafubifenoduval.pdfIn PDF document text
- http://ohappy.org/userData/board/file/84789770004.pdfIn PDF document text
- http://westleyden72reunion.com/clients/4/46/469dc9162705cbff2d1fbe132f144f37/File/53752707860.pdfIn PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/695bd8fe2438b0531fee3e87984a0701/bunafef.pdfIn PDF document text
- http://unseretochter.ch/images/file/36849951859.pdfIn PDF document text
- http://sonnenheizungen.ch/fckeditor/editor/images/file/buwapixorupanetibefi.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/1prlvfov4br0fqe37t6qh2m0kl/fasitakota.pdfIn PDF document text
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/b8505b969208ede7ec2c165f0770ae4f/mazexewikiguvale.pdfIn PDF document text
- https://obermeyer-modemarkt.de/upload/file/zelerusuxan.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=mr+ripon+please+pickup+the+phonePDF 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_off0000d980.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD980 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f197.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF197 | 10656 bytes |
SHA-256: b40c62e8f38c00d2c74d9883d2d8bc555d8c6f58c9debd1dd33cc695bdb8afba |
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font_02_sfnt_off000109ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109EF | 17676 bytes |
SHA-256: 9d65ba8e57ec1809b0e5e22b3f7f71ae6851898cdf4a202dd506a288c545e60e |
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