MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many pointing to compromised CMS upload directories, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with a link farm designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://irlanc.ru/uplcv?utm_term=composite+numbers+meaning+in+telugu
- http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/fokovarijalofakelediwu.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1613a024018439---tekemijofewofexitu.pdf
- http://naplesredeals.com/userfiles/files/neluzobafapabararegine.pdf
- https://sandalyecenneti.com/wp-content/plugins/super-forms/uploads/php/files/fn43798mg14sgmoebolcmoem7j/niwonefanokobit.pdf
- http://findingthegrey.com/userfiles/file/vetoripovuwonenijawumiz.pdf
- https://altonika.pro/files/fck/file/5959755571.pdf
- https://iword.de/userfiles/file/dorikit.pdf
- http://thebookmarkcafe.com/uploads/files/dajepodekitixinemi.pdf
- http://asztalosweb.hu/userfiles/file/25042841505.pdf
- http://jar-ted.pl/file/1466561823.pdf
- https://dodatnagarancija.com/userfiles/file/luxujudivukidafo.pdf
- http://graviroz.hu/ckfinder/userfiles/files/83855461623.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/161319252badcf---zezojatuvebovuposepejak.pdf
- http://congtyvima.com/images/Download/dafirotenevenelewutezaru.pdf
- http://investin-khj.ir/ckfinder/userfiles/files/datexonazo.pdf
- http://waetsukai.jp/system/ckfinder/userfiles/files/65213762505.pdf
- http://fukaofoods.tw/uploads/files/202109170719461011.pdf
- http://drapikowski.pl/uploaded/fck_files/file/vovefefizuwoxuzejugexizaj.pdf
- http://crm333.com/documentos/file/99031056105.pdf
- https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/62890703482.pdf
- http://cualuoiskydoor.com/webroot/img/files/60374103131.pdf
- http://moristas.com/userfiles/files/32351231772.pdf
- http://mega-gold.com/userfiles/files/nipozitafosatowuxawoduzod.pdf
- http://opuspoint.com/ckfinder/userfiles/files/17329432383.pdf
- https://harley.dataroom.tw/upload/files/58671670248.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_off0000d574.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD574 | 16792 bytes |
font_01_sfnt_off0000ed86.bin2fc25eb7d3fea96267ceb6cae7e21726f54acb845c8aa5c1ece53dfaf15efeeb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED86 | 20172 bytes |
font_02_sfnt_off00012293.bine5813c492ebfc13c3b1fbd0ae5f708bdef6042e2e42d53b3483dbea1e87c0a14 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12293 | 10864 bytes |
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