MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to multiple compromised WordPress upload directories and disposable hosting sites, likely to distribute further malicious content. The presence of a visual download button lure further supports the phishing or social engineering aspect of this attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9682
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://voyagerf.ru/wp-content/plugins/super-forms/uploads/php/files/a49e35987718e23a84a1abd0ead8db23/70654241921.pdf In PDF document text
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/91c16f7a2e8a3f0867a5a0cf3eb8d851/nutobinazaveta.pdfIn PDF document text
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac35c8c522b---94784992699.pdfIn PDF document text
- https://kisikana.hr/userfiles/file/xugovitinitesewawawerebar.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/49523653363.pdfIn PDF document text
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cccf408ba1---keluno.pdfIn PDF document text
- http://aire-limpio.com/img/editor/file/15580612536.pdfIn PDF document text
- http://altiro.nl/home/tjerk/file/xanojaw.pdfIn PDF document text
- https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/e02b9a898bf5c465202c494ee242ca62/74925997788.pdfIn PDF document text
- https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/93bb1f18b0abc34173d7802a1a8a39e0/82403791138.pdfIn PDF document text
- https://www.nexidia.it/wp-content/plugins/super-forms/uploads/php/files/8c7d8d15a6fb19b2f22fc32c512338cc/koneviradit.pdfIn PDF document text
- https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/549c28e6d6af4a8a8d4267dd5089d9db/43230482492.pdfIn PDF document text
- http://seoulgreeter.com/userData/board/file/jezatuxas.pdfIn PDF document text
- http://parkwaywest1974.com/clients/861606/File/zexojisap.pdfIn PDF document text
- https://marbellamohali.com/wp-content/plugins/super-forms/uploads/php/files/ff8cc6f9d86a24778790579fbff1c476/89114031031.pdfIn PDF document text
- http://abwingsmd.com/uploads/files/pewodewinowisurovodowage.pdfIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=7th+standard+science+guide+downloadPDF link annotation
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off0000f07f.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0xF07F | 13016 bytes |
SHA-256: b719564cc2f6729ec2f68bb303197ed000981a8e6ea4e869ca5876628fede375 |
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font_00_sfnt_off0000de83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE83 | 5276 bytes |
SHA-256: cbccbe708f41e09a432934262722bd16a9885ec593fa42610b02a6071d4467fe |
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font_02_sfnt_off0001111e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1111E | 10516 bytes |
SHA-256: 0732c3b2d4bdfe2c1a4750144d64df692fe24c10432215a239206dadc9c9d005 |
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