MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised WordPress sites, suggesting a phishing or malware distribution attempt. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to download a password-protected archive, a common tactic to bypass gateway security. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://blackshirts1962.com/clients/f/f2/f245580d3072b78cda2271cf7a7e3f61/File/29171505755.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606d48194cfb5---86529262836.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609d15d76d965---56364913849.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/12flj6hve7p2p16ltnd167b23q/lijigukulutolipafigovaf.pdf
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160917163dac12---xomowopaxaze.pdf
- https://alice-immo.com/userfiles/file/wimewekimanexagatexi.pdf
- http://megaprestige.ru/uploads/files/xaropadimavumeti.pdf
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c1007366491---53061287631.pdf
- https://advance-pack.com/editor_upload/file/96871566821.pdf
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/8c54e017ad33694b0e884384852ddbf5/zedinukanelujujokitasaf.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/seic7kc7se2c7pk26c0qvgscfc/teviririsoxulokabuduvi.pdf
- http://schokoladenfontaene.de/idata/78866197347.pdf
- http://bikipvuikhoedep.com/app/webroot/files/editor_upload/files/99099970362.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee15bed1a2---kuwigamidekasaworiluliriv.pdf
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609136450b01c---23710566737.pdf
- https://ringid.vn/ckfinder/userfiles/files/fezorezatarejinapo.pdf
- http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/161135f302e17c---54793536553.pdf
- http://fusheng-vietnam.vn/admin/webroot/upload/image/files/birinalisidoxizitadozut.pdf
- http://pekingtogo.com/uploads/files/21315678091.pdf
- http://ahkjt.com/upfile/file/tutivotoruwobinufulej.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ba2049cd691---lajofewewidibonalig.pdf
- http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/23107102725.pdf
- https://crownprolaw.cn/userfiles/Proj_Name//files/powivinuvizebojinaxinid.pdf
- http://animalscipublisher.com/files/upfiles/file/7247731854.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=robbins+y+cotran+atlas+de+anatom%C3%ADa+patol%C3%B3gica+pdf+gratis
- 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_off0000f45c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF45C | 16792 bytes |
font_01_sfnt_off00010c73.bin86ef62089b24d69f3bc1e490f9ef17966e38749df41a5516908fb9af62e27721 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C73 | 11464 bytes |
font_02_sfnt_off000126dd.bin8ef058230dbcde06a9996cb6b73a7673e42317c463a461edd34a5fd2ba7cf761 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126DD | 22744 bytes |
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