MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' lure further supports a phishing or scam-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://pistant.ru/uplcv?utm_term=puffin+for+android
- https://soalmatematik.com/userfiles/file/80831695680.pdf
- http://fgosvo.ru/files/files/sidusemutupe.pdf
- https://mrdak.cc/uploadfile/files/wusumetatuja.pdf
- https://brakos.it/file/1748964026.pdf
- http://2446665a.ru/ckfinder/userfiles/files/kuzagise.pdf
- https://eijo.in/ckfinder/userfiles/files/41972427216.pdf
- http://bjbtrh.com/files/pic/file/90529360463.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/161408e905a627---79975000584.pdf
- https://affordans.com/ckfinder/userfiles/files/36506211137.pdf
- http://ghefootmassage.com/fckeditor_userfiles/file/bedebefujijutusopumo.pdf
- http://otpetye.com/images/shared/file/weriwikazuvitagemasavebop.pdf
- http://vstarmp.cn/upload/files/20210913_080317.pdf
- http://yourhandmadeitems.com/userfiles/file/35175229166.pdf
- https://isuzuphonoi.com/data/dulieu/files/muvupuxuruvukiboj.pdf
- https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/f71227755bca195edf67eadc5d5583b4/bexujifubufomojefitur.pdf
- https://embassyinvietnam.com/webroot/img/files/79231127505.pdf
- https://mcq-exambd.bdbabymart.com/app/webroot/ckfinder/userfiles/files/tiloduja.pdf
- https://gfwofficial.com/ck_imgs/files/xupifi.pdf
- https://ostrichpharmaceuticals.com/userfiles/file/7340625748.pdf
- http://fortwashington.abwingsmd.com/uploads/files/20042156380.pdf
- http://huiking.cn/uploads/file/012103028542.pdf
- http://skncn.com/u/files/dotaxariso.pdf
- http://hybsch.it/upload/file/diguvupimedenopuja.pdf
- https://mackbeks.com/files/file/34410691267.pdf
- https://sunnyrosesschool.com/userfiles/file/dutotemegulisunowo.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1613056bcd5b42---63788061404.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_off0000e533.binfdc2fc198b8b02e056cfa09d6004766799145f6f2627336db9e4842253219440 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE533 | 17772 bytes |
font_01_sfnt_off000112d4.bina79359b365aeb2c260153053a4b2cf7dba1695530b5891ece3e78acfe6bc69fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112D4 | 10004 bytes |
font_02_sfnt_off0001290b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1290B | 16792 bytes |
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