MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The PDF structure and embedded links are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
Heuristics 6
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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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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://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4750da3508---25721697127.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a82910822ff---liluverataxakubizuvubet.pdf
- https://pt2-turbo-j3t.com/contents//files/fevurasagagowenabiluluzep.pdf
- http://aaaexpressac.com/userfiles/file/12328498258.pdf
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160860892b35c6---33729719944.pdf
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/e0350a10e18cc87f559ce3120832964a/wapafajamemijuvoniseve.pdf
- https://szaktel.hu/uploads/file/29160249373.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be799487c85---rasuxefabuk.pdf
- http://diysmart.net/userfiles/file/womisolusurisivurofeves.pdf
- http://www.aamuhsv-madisonalumni.org/files/files/64938920121.pdf
- http://tevukasveza.lt/ckfinder/userfiles/files/55142294264.pdf
- https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/322395e4a9140e776a9984e68af8e653/fenobete.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d5d83eede5a---71691984229.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/a0cc37d3a96768aa7ee197a44d3aa6a4/jaremagozu.pdf
- https://bishopsalamatkhokhar.org/userfiles/file/fufojopebepamosuxejaxaw.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd4c2006cce---7239686838.pdf
- http://dwallacelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/60369473271.pdf
- https://clove7.com/userfiles/file/ginuserezolinoxoka.pdf
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160796e203c08e---91224273078.pdf
- https://biorenta.lt/ckfinder/userfiles/files/47389239625.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c6f5c60d88a---37075018284.pdf
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/160be4e858604e---96735836198.pdf
- http://zonweringbelgie.com/ckfinder/userfiles/files/89715277449.pdf
- https://blokhol.com/upload/files/33492230977.pdf
- https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/8b7e95e1e34673b81a84e17d4ed83d7f/senovifizimalelugadubefa.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=comparing+and+ordering+real+numbers+worksheet+answer+key
- 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_off00015e43.binaeffdfb595fb05b521e4e0f4304d0965a95a74b7d5fc2c42b93fdadfbe097429 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15E43 | 16300 bytes |
font_01_sfnt_off0001880c.bindab4548b21d31a5f3bb8c70785ab13ef8dab4896d8abfaf3e967f297992a9a65 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1880C | 11404 bytes |
font_02_sfnt_off0001a264.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A264 | 16792 bytes |
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