MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains a link farm pointing to compromised WordPress upload directories, suggesting an attempt to host or distribute malicious files. While no scripts were directly extracted, the PDF structure and link farm indicate a likely phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c3d4d7b1e---wikefegirowewili.pdf
- http://sparan-art.ru/ckfinder/userfiles/files/7795265321.pdf
- http://tianlanlawyer.com/filespath/files/20210911111546.pdf
- http://kiuanai.com/userfiles/file/37685417386.pdf
- http://vimar.ua/userfiles/files/9841632345.pdf
- http://sspvjd.com/FileData/ckfinder/files/20210903_80F8770D29D06ACC.pdf
- http://arcadia-fitness.es/userfiles/file/puzarulasetetameket.pdf
- http://www.contal-farmer.com/uploads/files/27662029827.pdf
- https://saptabangunmanunggal.com/indomobils/upload/file/zemonepowagadupinu.pdf
- http://irvine.songhakbbq.com/uploads/files/puzosato.pdf
- http://blpest.com/UserFiles/file/33558095154.pdf
- http://kanoonkaraj.ir/dbmanager/filebank/htmlgallery/file///50008472279.pdf
- http://jd6618.com/jd6618/file/2021-9/file/LwpCms2021_09_13_03_03_14_8002.pdf
- http://ahjygjg.com/upload_fck/file/2021-9-6/20210906022514211008.pdf
- http://fkjz.cn/upload/files/2021/09/202109022108509027.pdf
- https://ladymamashop.com/uploads/files/202109072142331711.pdf
- http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/xiligojoduvij.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ed8af61e63---voxiwu.pdf
- https://interconformity.ro/images/file/71428511489.pdf
- https://www.mnogotrop.com/ckfinder/userfiles/files/403559892.pdf
- http://myphamnanyno.com/luutru/files/tezomamobafutudenobim.pdf
- https://ip-pharma.net/data/files/24603494694.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/29pf4inqeqem8e2aj7j07vfpi1/20159936446.pdf
- http://xinghui.co/upload/ckimg/files/202109111620256622.pdf
- https://frigosztufi.ro/ckfinder/userfiles/files/75990859946.pdf
- http://xn-----6kcaheblih5ab0a6afqbzoqe.xn--p1ai/ckfinder/userfiles/files/loveromadakazed.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=flutter+ios+universal+links
- 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_off0000df7b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF7B | 16792 bytes |
font_01_sfnt_off0000f792.binc7006407c9c11b88adb8f54e089129c609c43ca4dd1e367db13457ef1dde3bf7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF792 | 10336 bytes |
font_02_sfnt_off00010f04.bind831c3ed738654af257ec9157283f20aa93446f6bfcd6f82ff9c5628d77a43b6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F04 | 17892 bytes |
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