MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute further malicious content or phish users. The presence of these links and the nature of the heuristics strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://queure.ru/uplcv?utm_term=horizontal+vertical+and+diagonal+lines+worksheet PDF link annotation
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609a766f4e219---78443782899.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5baffb18d9---xinigatejenow.pdfIn PDF document text
- https://perfecthospital.org/ckfinder/userfiles/files/bugazewapegobabalisufif.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/78574309483.pdfIn PDF document text
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/irgv76f5tcu9vc4u9oanpjj7rn/jilurajarivugibojifu.pdfIn PDF document text
- https://plasy.com/uploads/file/49579749538.pdfIn PDF document text
- http://richmediahouse.com/admin/uploads/file/suxomefute.pdfIn PDF document text
- http://hongshengfish.com/uploadfiles/20210517/210517054240710030k3dxgu18j56n.pdfIn PDF document text
- http://anaminfo.com/attachfile/file/31774678456.pdfIn PDF document text
- https://giasusinhvien.net/upload/files/77999413079.pdfIn PDF document text
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/cfviee80jlfouvb8pfeek93cv2/buwinadij.pdfIn PDF document text
- https://badoza.net/userfiles/file/45283201850.pdfIn PDF document text
- https://citytrafik.nu/images/file/47702787951.pdfIn PDF document text
- http://busankid.com/webfiles/board/file///jifilokakomamijafafe.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/ovlhal20okchl1nujbcfedtr45/66430101559.pdfIn PDF document text
- http://bolshunoff.ru/images/wysiwyg/file/26131432671.pdfIn PDF document text
- http://cloverpark1961.com/clients/6/6a/6a73a08bb68f643008adb5efbbb44e43/File/17413631840.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/16100ef7c7eba6---dadiriwup.pdfIn PDF document text
- http://tomaszfilipczak.pl/userfiles/file/15079238916.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160869b769d3d0---97818016249.pdfIn PDF document text
- http://stalmont.eu/userfiles/file/1598748393.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b1f2acba509---19384505751.pdfIn PDF document text
- http://titusauto.hu/kepek/file/rofosenowikufi.pdfIn PDF document text
- http://shinies.ru/img/lib/file/34697626314.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/16074f876b58f9---lupugatava.pdfIn PDF document text
- https://nolimitscenter.be/peausitive/images/FCKeditor/file/meveligukux.pdfIn PDF document text
- 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_off0000c4ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4CA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dcdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCDC | 16268 bytes |
SHA-256: 055d16e71beaef682209b3688be8e9347695aeaed0298a35fdaf8e79190fc756 |
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font_02_sfnt_off00010670.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10670 | 10944 bytes |
SHA-256: 9302731389821853d0c3b0bda88daebb9714c7ca4afeeb3017f0d57eb5001166 |
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