MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to compromised WordPress upload directories, suggesting a phishing or malware distribution lure. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to open a password-protected archive, a common tactic to bypass gateway security. While no scripts were directly extracted, the presence of external links and the nature of the heuristics strongly suggest a malicious intent to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
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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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://extintoresorigen.com/images/editor/73681556475.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/0a6e0664a66309070f022a36b6cca0d7/89000838537.pdf
- https://sportsht.com/userfiles/file/83385459565.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e79523ceba---29931687617.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1014b6a91---xisotugafavalipawifukopi.pdf
- http://tsradviseurs.nl/mailing/images/photo/file/83340861623.pdf
- https://aimara-bg.com/userfiles/file/97329592355.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160a45d116c2ea---mowejomuwudikono.pdf
- http://195exim.com/datas/files/zemosubapazoru.pdf
- http://arcadia1973reunion.com/clients/3/33/33cb7023d77084166ed027ca16b579b7/File/zipetimipajubexuwowuda.pdf
- http://bijverhoeven.nl/uploads/files/77762105179.pdf
- https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/a78b994b6d64afe1a576c05182bbf8c5/64235681781.pdf
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/9cqbmpes6t43ju3nbha7tku9h6/70257419753.pdf
- http://omegapizza.net/uploads/files/jigojiwigokokebiwaj.pdf
- http://birzebbugastpetersfc.com/files/file/96734300545.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16070c02b55c1c---puwekiwigonelesutetefegu.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b5e2e8246b9---wusobutelusadetifizati.pdf
- http://eprdel.cz/userfiles/file/luralajisemileza.pdf
- http://megalaserasia.com/upload///10878995839.pdf
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160adca8a95420---gijixe.pdf
- https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d616549ab9a2ab758eedf3647298be35/85202537565.pdf
- https://addsfly.com/userfiles/file/30710819698.pdf
- http://comp-art.ru/userfiles/file/luginegapop.pdf
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/9c3cf2f4f7f2e251e55aa2d20812e63a/20637099468.pdf
- http://aksaaydinlatma.com/img/editor/image/file/31380789311.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=removing+password+protection+from+pdf
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e39d.bind30dc2aa1549cc3ca562454451d2e0dab685c3e90f4b2d50ec6594a85218b098 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE39D | 16800 bytes |
font_01_sfnt_off00010f4e.bina1f35e02526d4a0ae90dc88ff1ff9a106295e079d9fc7c7cef67c5fb7a34d242 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F4E | 11112 bytes |
font_02_sfnt_off00012921.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12921 | 16792 bytes |
font_03_sfnt_off00014132.bind9b8130aa6f9633ab3de79ff31e2004108ab7689d1c7a99745aef320e0a208db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14132 | 16080 bytes |
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