MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm hosted on compromised WordPress sites, a common tactic to distribute malicious payloads while evading initial detection. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may instruct the user to open a password-protected archive, further obscuring the malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607427b2e3128---64346204630.pdf
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160e7226f3a35d---timegerutel.pdf
- http://helder-effect.nl/userfiles/file/fozujatefinolekoseliguw.pdf
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8695f4031---vitokoferovefu.pdf
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d30815c636---renamobukopukumerupejufi.pdf
- http://sistersaviopublicschool.com/userfiles/file/44485270019.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/26d4273ea92eedb4e8841e775224be43/93939293421.pdf
- https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c2259b82ed8902454834a0853bee3c85/dixixokumuforaza.pdf
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c473f12f5a---66172482451.pdf
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3b64947a92---tigolixizobobexetet.pdf
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/k7nast6jiigjnoi68npf39gba8/81815638476.pdf
- http://sieuthivatlieuhoanthien.com/upload/files/xulorasebuw.pdf
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3e2260b19---27923392774.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/e3ea9c79330a143f9d083220f75615c2/40097150254.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ed3444d5e---80171646057.pdf
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/r802gjen3og1bfehncclqagil9/nesetupisinit.pdf
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/65te8ehvl1rogf96degetrii7q/22371579938.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160ba324dd5d65---72424516217.pdf
- http://sugarfree-gelato.com/upload/file/24145439392.pdf
- https://xlspandoek.nl/userfiles/file/xilijibolikepobiforux.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=acer+desktop+default+bios+password
- 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_off0000f73c.bin65cded92825e640f44a448be0c301152943008204ffc0c64e8ab242d203be3d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF73C | 17364 bytes |
font_01_sfnt_off000124ea.bincd169e811a4030c4858ad803429238295d3aee70410ec87eef65f85991c3d670 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124EA | 10908 bytes |
font_02_sfnt_off00013e2f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E2F | 16792 bytes |
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