MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised websites or link farms, suggesting a phishing or malware distribution scheme. The heuristic firings indicate the PDF is structured as a link farm on disposable hosting, likely to obscure the ultimate destination of the malicious redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://archism.ru/uplcv?utm_term=scary+video+call+games
- http://nkmate.com/FileData/ckfinder/files/20210908_6739EEDF7A437468.pdf
- http://studiogaleazzo.eu/userfiles/files/59126108239.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16137265bd995d---mezofavukajaso.pdf
- http://eurogeographyjournal.eu/admin/fckfiles/file/49425632707.pdf
- https://keyword-lda.pt/site/upload/file/wipeguxaxiranem.pdf
- http://huzatfokozo.hu/editor_up/4309886942.pdf
- http://airzo.net/userData/board/file/94032660084.pdf
- http://carneslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gogegozugezolese.pdf
- https://agronlogistics.com/userfiles/files/sivosanojifevimukife.pdf
- http://pokemom2.com/uploads/files/senewosujave.pdf
- http://palakkadtourism.in/ckfinder/userfiles/files/mimobagadanedu.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614002faf2f55---32964851256.pdf
- http://pp-aqua.com/userfiles/files/68972786172.pdf
- http://kpdb.org/userfiles/files/25848305522.pdf
- http://azs-szermierka.pl/zdjecia/fck/file/52969474205.pdf
- http://portalcom-b2b.es/img/user//file/_0102472001631753398.pdf
- http://isisthailand.org/file_media/file_image/file/durevu.pdf
- https://sunnyvale.com/wysiwygfiles/file/sudugevulasarigimegum.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/5ffdfpav8ol3mp5fs0qsdrtqh6/39472101787.pdf
- http://sarkar.ie/userfiles/file/78285034823.pdf
- http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/20729473724.pdf
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/vrihv6cudgf25rvmo2doaame0q/ziruguwobazudukokiwusoxiw.pdf
- http://dylogistics.com/userData/board/file/wexiludunakimenogedaduso.pdf
- http://straps.by/ckfinder/userfiles/files/15538630833.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/o7i6b2piicov6td1gffa00ael7/6153265671.pdf
- https://www.tocbirsen.org.tr/ckfinder/userfiles/files/nezugebitufi.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_off0000c549.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC549 | 16792 bytes |
font_01_sfnt_off0000dd5b.bin45be2f10aa8a5e8bba1714e96919394a47808a35bcc4fdb981e07fdb3bc2d470 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD5B | 16892 bytes |
font_02_sfnt_off00010925.bin997f59df1df975b9ea917cabf707f82ea2a30e43fa186dc4cf1b4d4aab2081eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10925 | 10768 bytes |
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