MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The presence of a 'password-protected archive lure' heuristic suggests the document is designed to trick users into believing they need to decrypt a payload, likely to bypass gateway scanning. Multiple URLs hosted on compromised WordPress sites further support the malicious intent, potentially serving as download locations for secondary payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 8
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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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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 https://crewmak.ru/uplcv?utm_term=accidentally+deleted+instagram+message+request
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608192017ab51---zaritir.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160bcb9eebc896---wogufejuvegidotox.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c2a97815968---mububo.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b7f1c1bde9---80667745537.pdf
- https://elnativocoffee.com/silver/upload/files/wimewejibavoxufusugirase.pdf
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/af47bb6bfd8fb7f2049e1f6ed71a71ef/10179554707.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c9d25a70db9---tikefofemega.pdf
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/baea3077fc6f9edf16e1f320244bd348/kugudiwajosar.pdf
- https://arhometutor.com/userfiles/file/76748704870.pdf
- http://www.alfapilates.pl/upload/file/tezaletaxesox.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/23n75888n59voavcmj05f0dikt/19418909044.pdf
- https://pinpointfeedtech.com/ckfinder/userfiles/files/paninewewot.pdf
- http://siembra.me/uploads/files/74902285655.pdf
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d580fa9f9e---40169725302.pdf
- http://rollfactorytogo.com/uploads/files/wowalawa.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/85770e91616b4d813a88a285b7783a84/sagosefi.pdf
- http://amuseonline.com/absite/userfiles/file/kavid.pdf
- https://textosolutionslinguistiques.ca/upload/editor/file/65418752645.pdf
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/61af6bto9ikk2eeednimiq8dn6/joxuzuvuzodaxamibutopuxi.pdf
- https://slaterlighting.com/wp-content/plugins/super-forms/uploads/php/files/18de24b473c0671339707f777e75973c/70400374031.pdf
- http://crisismobile.com/ckfinder/userfiles/files/37132294677.pdf
- http://dailygiasi.com/uploads/userfiles/file/59843138593.pdf
- http://bluecars.pl/userfiles/file/belovu.pdf
- http://creativeindustries.ru/uploads/userfiles/file/xalojaxodazosetomiwuniw.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fc53.binc1061a1280959105a71010abaceedd69a911fc93fd042df5ec1dd51ff17c031c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC53 | 10936 bytes |
font_01_sfnt_off0001152c.bin8a1fd881af635fea5d6670c2f72679e75a01043aeee106739d4d5808997a793c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1152C | 19736 bytes |
font_02_sfnt_off0001477e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1477E | 16792 bytes |
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