MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a phishing or malware distribution scheme. The 'SE_INVOICE_LURE' heuristic indicates the document's content is designed to trick users into clicking these links, likely to download a second-stage payload. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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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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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=cash+and+accrual+basis+of+accounting+pdf
- https://ajansnigde.com/resimler/files/nemoruwujob.pdf
- http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/9ed98c5388f3ecf053a9caa3348a6819/fonupifotiganodivonole.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/e0b19aa16c0ba9add88ef5e6ef8b1aff/nuwufegigu.pdf
- http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608abe7cc6fe5---lirajiwerotadovutot.pdf
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/d521e2a7fca2f6e816ffacac9642a25b/2427482167.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c8c2d638f4---tuvivafoja.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cbe1dae66f0---venesikixusefabajaz.pdf
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/0ad51a9ece1b63364ce2a3d7e7e5d27e/90308369571.pdf
- http://architettoseneca.com/userfiles/files/xifepozonazemunaguforus.pdf
- https://aspirans.com/files/file/nojazadefobobe.pdf
- http://cuhs1981.com/clients/8/82/82ca37c076ec4232796cb58ed009bb3a/File/24669229140.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606f4c7903120---65331288784.pdf
- http://wearefamilypalestine.com/clients/3/3b/3bc38fc23f9ffb54b20226cbd6ad6ce3/File/zomabonabuveduvax.pdf
- https://lightsourceindiana.com/wp-content/plugins/super-forms/uploads/php/files/f488c6a3347239385333931101cb630e/milabexomagi.pdf
- https://cbconsulting112.ca/userfiles/files/97953006102.pdf
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160839701317d7---befowobulebodijiji.pdf
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/hkel1cj2598o6dfgqfbq1eucl0/74458699382.pdf
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a79107197a9---14177013930.pdf
- https://susta.vn/userfiles/file/779445877.pdf
- http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/8tfhgj8652hn2r643jd3n25pf2/40563056795.pdf
- http://analogsys.com/uploaded/file/370073122609253fd85b69.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d3efa17db28---sonuba.pdf
- http://jrpst.pl/userfiles/file/xufemefisadokavu.pdf
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16071d3c067d1a---novumoj.pdf
- http://panteres.com/files/files/93521999067.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_off0000efbf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFBF | 16792 bytes |
font_01_sfnt_off000107d1.bin75f5b8f7b28993b31e83024ccac9795ce5ead2811081110052e72cbf99c3335f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107D1 | 17532 bytes |
font_02_sfnt_off000135fa.binf75c244b5bb711377024be337903b2dfba96f6a530745b50e369d1875e672808 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x135FA | 11036 bytes |
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