MALICIOUS
212
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document exhibits characteristics of a phishing lure, specifically using an invoice or payment pretext combined with instructions for handling a password-protected archive. While no scripts were directly extracted, the presence of numerous links to potentially compromised WordPress sites hosting PDF files suggests a distribution mechanism for malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 9
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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 http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d4e5256f22d---89508629353.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c121d8ed0a4---kerokitixewe.pdf
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/behfab2ugl28l8bepmv3dk4da7/kifajuwul.pdf
- https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/2221213930c2eb37218b5d620daf20f5/7105715322.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aafcfcde0f4---31412116599.pdf
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6bf0cbc8ab---rewizapap.pdf
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/grl58cdole87po2sotrc4nvu82/zavaxemi.pdf
- https://euroroma-bg.org/files/file/58400948968.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a5d0c3265---14290744656.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a3989e1ddb1---barapuzulo.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/90f3842ff27858643e8bb19ea3a5a4e5/74494029497.pdf
- https://angelsstaff.com/uploads/file/53242005657.pdf
- http://cortabellanews.com/userimages/93214906880.pdf
- https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/0437d27ba86e97bd2459a981c05a9d34/xofebizotejusipen.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608827c0e2242---73779716208.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=pdf+in+webview+android
- 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_off0000f627.bin574d60bf91fed420b4d4376641258c064ddcb09715b693e1331f581f309aa975 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF627 | 18496 bytes |
font_01_sfnt_off000127b6.bin52d85586c6befacab4179b2a7673e65a2e04dcf3c6774979385d88734333c2b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127B6 | 10328 bytes |
font_02_sfnt_off00013f26.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F26 | 16792 bytes |
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