MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and links to compromised WordPress uploads, suggesting it functions as a link farm to distribute phishing content or further malware. The presence of embedded URLs and the nature of the heuristics point towards a phishing or credential harvesting attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://ketchas.ru/uplcv?utm_term=what+does+wbu+mean+in+texting
- https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/bd225c8f3f136873b9801569a95a3f28/91584053297.pdf
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/gvtkqfftu9uug7d18jb1l4hop5/53031622787.pdf
- https://airshow-bg.com/file/29577013751.pdf
- http://utuin.net/files/fckeditor/file/boregiwuwuxexawowidiki.pdf
- https://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/92f27433a0df630cd3f07cd7c0f365cd/jofipob.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/e4d7e8cbdc6cc5f5391a7bd4eac4d5c0/tokuwunopolisopel.pdf
- http://preserveproperties.com/userfiles/files/sevob.pdf
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160828cea65c90---tawubidoniveroze.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/9f5f56afcc2915b11892407429ac5f65/dizolemerivabebebose.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fbe236641f---81456523337.pdf
- https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/53180c43e613a3a1d4f26eb900f9ee48/wonogijisora.pdf
- https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/a2fac73d9a0313262f9929d06fe98efa/tomisepibumulenuputex.pdf
- http://goraku-sangyo.com/userfiles/file/zopemow.pdf
- http://palyavalaszto.hu/teszt/upload/file/85657635585.pdf
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/e9387bda914e3bc22b20ee3440e23444/muluwokazitesawujetatuve.pdf
- http://anhuifan.com/upload_fck/file/2021-5-10/20210510025353713853.pdf
- http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609d845fa7d39---xavogixazivo.pdf
- http://aelma.com/sites/default/userfiles/file/59269590563.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/9kd23aebue7schbooukeu5fuh2/53080202081.pdf
- https://pypconsultores.mx/userfiles/file/mivifakopifaxomuvofividub.pdf
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/6e5145b8d46ad4b102d9060aa460a1fd/94306261337.pdf
- http://harposwebdesign.nl/app/webroot/files/userfiles/files/fokobumirerow.pdf
- https://sportuna.be/ckfinder/userfiles/files/ridediperamitulapoziwuba.pdf
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607742aded04f---loxirizefedonexemex.pdf
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/fc2ob36us8un82sr72dr2cu7i7/jozirikavojepix.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_off000103aa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103AA | 16792 bytes |
font_01_sfnt_off00011bbc.bin8dba9c21c96db09401e7c6c124803be0df39230543a78aea225818f59671a92e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BBC | 17720 bytes |
font_02_sfnt_off00014a51.bine1a8af3dc6f04ade3806f79be4b06163fa999bc104a7b80f202d38b2839df017 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A51 | 10972 bytes |
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