MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. The 'SE_CALLBACK_LURE' heuristic indicates the document's content is designed to trick the user into making a phone call, typical of phishing or tech-support scams. Although no scripts were directly extracted, the presence of numerous external links, some pointing to compromised CMS uploads and disposable hosting, suggests a phishing or credential harvesting attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://tw-sincere.com/upfiles/editor/files/zagodisewapiseladuviwi.pdf
- https://kermoulin.com/userfiles/file/manalivowafes.pdf
- http://duetsepolno.pl/userfiles/file/nopovitupujosavalo.pdf
- http://lnimeina.it/userfiles/files/natamanafijefegolave.pdf
- http://travisreunion.com/clients/1/1d/1d9c560ef9ee6310b862f4c9d288d7bd/File/83749088796.pdf
- http://bjhtdszdh.com/v15/Upload/file/2021521043291065.pdf
- http://kahasat.cz/data/file/xolifopagofavevutelida.pdf
- http://escritacontabilidade.net/fotos/news/file/muxidezaneresuvadof.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a468d88c97b---17537885502.pdf
- https://digicpictures.com/downloads/ramarizamus.pdf
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e633c4b8e2---jodiwefosaz.pdf
- http://le-bouquet.be/userfiles/files/xeposisupukogugab.pdf
- https://dmvassociates.com/wp-content/plugins/super-forms/uploads/php/files/ea83d390dd2ccc00ccc54315d693409c/sunokifajegevatupipo.pdf
- http://khamtribacninh.com/images/files/72622044661.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8a9aa6b5a3---lezutigexur.pdf
- http://kaupa.cz/userfiles/file/kadimutanoju.pdf
- http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/dunibeduwarifusazawoxe.pdf
- http://bomtvplus.com/data/board/file/20210520195724.pdf
- http://offerseir.com/basefile/offerseircom/files/51169607854.pdf
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/92m2clehsbaeqgbt5s1ptthhsd/bijan.pdf
- https://securitydm.com/slicice/file/nipedenu.pdf
- https://floridainvestment.cz/files/file/68777500431.pdf
- http://lab4050.com/upload/editor/file/dopiriz.pdf
- http://www.moyekolodin.com/files/79034831319.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=is+genie+model+2028+compatible+with+myq
- 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_off000107bf.binfaea4642fedf6b8d29db67feafa0cadb0da4a069fa389fe92192cbb43b7d01f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107BF | 11748 bytes |
font_01_sfnt_off000122f8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122F8 | 16792 bytes |
font_02_sfnt_off00013b0a.binf37916b1ec50d4de964de92d4db7b5efc076a725cbad481c05e57380fecec7f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B0A | 18148 bytes |
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