MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file contains embedded JavaScript and multiple URLs pointing to compromised websites and link farms, indicating a phishing or malware distribution attempt. The heuristics also indicate social engineering tactics like 'ClickFix' and 'Clipboard command lure', which instruct the user to execute commands, likely to download and run a second-stage payload. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 9
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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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://archism.ru/uplcv?utm_term=git+branch+convention
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/a41a68389bc8da83ca6e3496401d36c0/jivuturorarebikoloki.pdf
- http://ahxxzx.com/userfiles/202104/file/nibukewupa.pdf
- https://www.reachcast.ca/wp-content/plugins/super-forms/uploads/php/files/0f906932e1ade2741429b2d9501b1e8c/libajanogus.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/bkoc6mdhr962j8ckjvf2ohlc5f/40034396876.pdf
- http://a-kamen.com/userfiles/file/nebalotufagofobiduj.pdf
- http://ilovegabal.net/fckeditor/_upload/file/56019085107.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091e5d27989f---mesomifuvakajatogokodadud.pdf
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/a6fbdc65b94c0918ae062b5a53e9ec4f/50033951921.pdf
- http://4998horo.gmmwireless.com/contents/files/10224458221.pdf
- https://birgatour.mn/js/ckfinder/userfiles/files/28888068115.pdf
- https://www.kunapak.com/wp-content/plugins/super-forms/uploads/php/files/9qkk2r7csq9m43om6amkcvim81/vikorewixo.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160aa4841091f1---bunumu.pdf
- http://mdbim.pl/ubezpiecz/obrazy/file/lofogisuvameda.pdf
- http://spreewaldatelier.de/img/editor/file/gorusajefuki.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/b3e4b61c0ccaeda6509c4b3c15c76e3f/kedejabopukajoliba.pdf
- https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/ok2bucsqsdm9s4vo45vh5ettj2/70699205207.pdf
- http://rollfactorytogo.com/uploads/files/54313193201.pdf
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4231b266e---fanuxatobujaxafal.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075a76ac8426---90388657225.pdf
- https://angelsstaff.com/uploads/file/59255030184.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/ecf0b7563ebb425f80bd42ba9da9fb31/95639922025.pdf
- https://cardion.dk/gfx/fckimages/file/fawijelutokareputurudipog.pdf
- http://k-yoga.org/file_upload/spaw_upload/file/20210503053353.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_off0000f47f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF47F | 16792 bytes |
font_01_sfnt_off00010c91.binadc445bf47c5bf91ef60045c78b776fc754c097ce439fdd0e8831f175d514f00 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C91 | 19784 bytes |
font_02_sfnt_off00013fc2.bin5f6e91d04c322c7f74e1f2e6a218663cfc0725cbbac14d27d33903fb818aad10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13FC2 | 10360 bytes |
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