MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file exhibits multiple indicators of malicious intent, including repeated invisible links designed to lure users to download payloads, and a link farm pointing to compromised CMS uploads. The presence of a 'download button' lure further supports a phishing or malware distribution scheme. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest it's a vehicle for delivering a second-stage malicious payload, likely exploiting a PDF vulnerability.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LUREPDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
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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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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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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://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/d11a58c6685205aced87ca366238a4d5/2894056591.pdf
- https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/k1q2tfd63hgffbc6l0oncacttb/gujulomaburefagibusofuje.pdf
- http://kingcraftviet.com/uploads/ckfinder/files/25871421145.pdf
- https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/avq7s5l5krl67v974j927kbeqv/tokimulosixomava.pdf
- https://thuaphatlaihanoi.net/uploads/files/lotis.pdf
- http://teleinwestor.com/userfiles/file/65041654008.pdf
- https://apskarota.org/userfiles/file/lemedazofofumiwofunonudev.pdf
- https://welltowork.org/wp-content/plugins/super-forms/uploads/php/files/e732eb79458bfac56eed1120d1137cd1/tamotepinajeledere.pdf
- https://bhsbeacon.com/FCKeditor/file/74585938980.pdf
- https://srmhospitalities.com/images/bulk_images/files/xoxusagawewafulone.pdf
- http://animationcoach.com/userfiles/file/mobimewoxod.pdf
- https://terlickodds.cz/www/www/fckphotos/file/feginikuzevegow.pdf
- http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160706e6d7a74b---3423770790.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160788a80b6572---winupuzurexikitok.pdf
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b45a7dffe8---83646287467.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160841d4b822a2---90509243732.pdf
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609fb124dfca0---fiwobozedorodedovi.pdf
- http://csc0851.com/userfiles/file/20210623033216_3bg5ct.pdf
- http://nfc.soo.jp/file/kodepufetojibesa.pdf
- https://www.mmgrowersg.com/ckfinder/userfiles/files/gewufar.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=edius+pro+6.5+%28cracked%29+full.serial+key.iso
- 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_off0000ea5c.binfd64eed842e77e55bb08a9fc58eb8c7854a75fc61554502168e2e3d6c64c9145 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA5C | 17684 bytes |
font_01_sfnt_off0001191c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1191C | 16792 bytes |
font_02_sfnt_off00013133.binc1635d939863c3e01bc33c13e00ddf6f44ddb4aaa43960384ea61691a30ca808 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13133 | 11224 bytes |
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