MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, indicating malicious content. The 'SE_CALLBACK_LURE' heuristic specifically points to a callback phishing attempt, where the document likely prompts the user to call a fraudulent phone number. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit user trust for financial gain or credential theft.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/86apgu01b5nh00u9ghv163lhac/moxojiwinevavugilutewa.pdf
- http://home-plast.ru/foto/files/tigubemumekepazofapadodef.pdf
- https://raljob.com/userfiles/file/91724853424.pdf
- http://inimtrento.it/userfiles/files/94913944587.pdf
- https://granitabrasive.com/editor_up/senifenulogapisale.pdf
- http://zussobrance.sk/grafika/dokumenty/nekewebuvonavexobusofa.pdf
- http://apluskleaning.com/admin/images/file/88063072737.pdf
- http://hightopeducation.com/cms_uploaded/file/gavevigapuperi.pdf
- https://huanghecables.com/d/files/74731460029.pdf
- http://kronospan-mofa-hungary.hu/editor_up/46724795230.pdf
- https://cobrawire.com/userfiles/files/sikizufazijanerov.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140181aeabbb---gudoguzibelijavomozokox.pdf
- https://cobaltinc.org/userfiles/file/10848132938.pdf
- http://olsztyntransportmedyczny.pl/userfiles/file/xubal.pdf
- http://irpuyesh.com/cache/fck_files/file/siluguvisanazuju.pdf
- http://ottomaniantextile.com/userfiles/file/potaxevotupax.pdf
- https://jhservice.net/imagenes/galeria/files/vaxaxitogazokebama.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/be58118767cb5a29865d194b670970fd/luditufevumufetiz.pdf
- http://wsm.hk/images/uploadfiles/file/66822190208.pdf
- http://elvirajogsi.hu/ckfinder/userfiles/files/memalawi.pdf
- https://dauglita.lt/components/com_mijoshop/opencart/image/data/files/pixubamigolemige.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=how+do+i+setup+an+email+account+on+my+phone
- 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_off0000d48e.binadbdedba7ad9b0b375e195a7a2cab535e67bb8973286cf53d4d9fd977457e9bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD48E | 10968 bytes |
font_01_sfnt_off0000eddd.bine8a2b4a5e7422ef707b392eb12bdfd2fe5837fa2d5f0f5245dfa02b2464d6e6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDDD | 17224 bytes |
font_02_sfnt_off00011a7a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A7A | 16792 bytes |
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