MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The numerous embedded URLs, many pointing to compromised WordPress sites and using 'utm_term' parameters, suggest a link farm designed to distribute malicious content or phish users. The file's structure and URL patterns are consistent with malware distribution campaigns that leverage compromised web infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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://queure.ru/uplcv?utm_term=is+sp+16+pdf+free+download
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec7940e4fa---85089105461.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/rd1q92mrvnmnlhbqkh64vi6nsn/57161236608.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089efb88c7bd---6629761991.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa6ebbad0e---julejipi.pdf
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a106576cc68---giwalu.pdf
- http://jongauger.com/ckfinder/userfiles/files/forowobamolomewijexi.pdf
- http://humanitool.ru/userfiles/file/20702362690.pdf
- http://travelshops.pl/userfiles/file/takavunujusixij.pdf
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/gciog18rvh5hsvj6ptc4nnm2um/72382627532.pdf
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/498415e01d752d26791d6cbfeb3b860c/mewuj.pdf
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/r3r00jne9aktb8n9r92qnpl6p2/zalisuwip.pdf
- http://tremonttemplemacon.com/clients/862779/File/27435495929.pdf
- https://siangyun.com/upfiles/editor/files/jofiduzos.pdf
- http://akinmedikal.com/uploads/file/12055224644.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8b291e55c7---desibopokatomurogij.pdf
- http://donghozibistore.com/luutru/files/mapurivewoviwivevotaferox.pdf
- https://pima-alarms.net/slicice/file/61896359174.pdf
- https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/8flf8dojms6300gftgqb06p5lh/xedipa.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/9m9t46g102m9o3ku7j5didl5hn/49280947274.pdf
- http://dachastyle.com/userfiles/file/lidasevowojaluxin.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6f4b1364e7---75904257838.pdf
- http://studioaba.net/userfiles/files/juzin.pdf
- http://amandatravel.com/userfiles/file/1949565344.pdf
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/si1fegmgfcmk7brnia5351b6k3/kefejanifozom.pdf
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16092972f6d45d---diriv.pdf
- http://www.aadhar-interior.com/userfiles/file/bixob.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_off0000ef74.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF74 | 16792 bytes |
font_01_sfnt_off00010786.binfe7fbde3172077d641813449a308dcf8b58f1c754bfa3ddaf090500f6a497c87 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10786 | 16932 bytes |
font_02_sfnt_off000133c2.bindbf683120403dfc1d0234888fd28b180c34b168bf3d29e2d082f8d30fbdc6ae2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133C2 | 10560 bytes |
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