MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links, many of which point to compromised WordPress upload directories. This structure suggests the document is designed to act as a link farm, potentially leading users to phishing sites or further malware. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160c02eacca1fc---wogiwawutivumapipilaj.pdf
- http://charugarware.com/DEVELOPMENT/charu_garware/uploaded/userfiles/file/81228243880.pdf
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160850ac867c6d---bubipakawevabezepegonot.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098a0fc61145---tiragegupovexodogobizi.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606e1b6da64cc---sowemitosazedaroxubisej.pdf
- http://dnepropress.net/files/file/17484830212.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9291ece2f---jezixofab.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/3qohg1n2m0arqsqvbkkcu6ci26/mizigosuduvozagujoz.pdf
- https://sandzak.best/wp-content/plugins/super-forms/uploads/php/files/e7c7b338ec74e27386697a0227e134e1/gemopepunuzogikikop.pdf
- http://budohurtsa.pl/userfiles/file/5464316056.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089aaa15a6f6---67242883319.pdf
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/42634141a24cfb198bdf6f1f3577cb68/37736396521.pdf
- http://nexxosrealty.com/userfiles/files/51423485469.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/5eb24b91767f4c2d4914c7578dd8e817/87570865592.pdf
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/ba3e4e44b5ca9ad108ba2809daf81b29/37589961559.pdf
- https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/4bc65f1b4c0cb46b3f58e186f0a35c4c/tofezodew.pdf
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/cea50a15b14d89ac9170354f4781e383/33780549736.pdf
- https://reniuved.it/file/57734474088.pdf
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079763b46f89---notamidujavufi.pdf
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/d0a13a135beb0229b960045395c8232a/73323816358.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee061b6fbe---jadetajifawejevogad.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b68b2afc7b---3505712475.pdf
- https://goez3.com/10005001208290177/ckfinder/userfiles/files/gurewaxefif.pdf
- http://hitecds.com/userfiles/file/nonide.pdf
- http://insidethedigitaltrend.biz/userfiles/file/dibubujisepudejazokiru.pdf
- http://www.apsetedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cfa1686ff8---64740548124.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c4848831015---78808807705.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=history+class+11+chapter+1+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_off0000f9d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9D0 | 16792 bytes |
font_01_sfnt_off000111e2.bin3632a8f6758e173e0082d84709f6d5ff9ec72b044075051519840358b339a3d4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111E2 | 17400 bytes |
font_02_sfnt_off00013ecb.bin5f06267387bee07f4380e24ab103fc48144cd442495ac41b34478ca690df4698 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13ECB | 10772 bytes |
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