MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple potentially compromised websites hosted on disposable domains. The embedded URLs, such as http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160c9a3983b07c---wosivexafi.pdf, are likely used to distribute further malicious content or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9927
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 http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607879b24ae09---gapulovakakosafikapipiga.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/71c89029856ab80d85889f891cdcab6a/50512871394.pdf
- http://beijingxinzhi.com/userfiles/file/20210516165150_798711609.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072241c673a1---naradofigazeki.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160c9a3983b07c---wosivexafi.pdf
- https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/a2ps136mm8j0bteet4ek79o8pn/dimidinutivoduvan.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b44b7df2a4a---95738565380.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/b1aed26fae0a1ffddc0f7159710e0943/ximofikuvezibixamuvap.pdf
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16074834a2c7b8---80869037961.pdf
- http://zrdb-drogbud.pl/Upload/file/wamaxivipuwudozoba.pdf
- https://ludifrance.fr/userfiles/file/mabopodiposod.pdf
- https://aspirans.com/files/file/berifesuv.pdf
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608231c790f7c---71162860719.pdf
- https://altbuket.ru/files/wilibokavofukis.pdf
- http://diencohoanghuy.com/media/ftp/file/xigilanaguzajomak.pdf
- http://consol.hu/images/uploadedimages/file/betev.pdf
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c683d0281d---jejuxomabaleta.pdf
- http://lyjclinic.com/ckupload/files/2637128989.pdf
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/f1fa33pgmtf8keehknf5h67kl7/safezukefotix.pdf
- https://ajitcoatings.com/uploads/89095237133.pdf
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/3ffd14ac79ce168e7eab4eeb185f14db/gizepelalona.pdf
- https://finances-canada.com/wp-content/plugins/super-forms/uploads/php/files/93600aefd48b005445390327755c9921/raburevusibuwuvefavo.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608476a083ceb---laposuzojakozusamidolutob.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=cavalry+of+a+failed+knight+season+2+release+date
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000edaf.binb350a07b574d27cc43b3991613f41a06bc0569d01927740903dbc045222e15cf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDAF | 11056 bytes |
font_01_sfnt_off00010738.bin623cd39984ce02204685b5b7a91f5027061541970691e10163c43803bfcd324e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10738 | 17440 bytes |
font_02_sfnt_off00013479.bin885b9024a80bd539ee88f4c17c1e1fa3cc6dab475ff5b740ebf17c73a317c9ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13479 | 17112 bytes |
font_03_sfnt_off00014d5f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D5F | 16792 bytes |
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