MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS uploads. The presence of numerous links on disposable hosting and the use of 'utm_term' parameters suggest an attempt to obscure the true malicious destinations and potentially engage in SEO manipulation for phishing purposes.
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 http://ranahytta.com/ckfinder/userfiles/files/65513164542.pdf
- https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/lumetusexile.pdf
- https://paymentor.nl/uploads/file/26659647296.pdf
- https://qeyeoptical.com/ckeditor/ckfinder/userfiles/files/ledizajel.pdf
- https://raguvosbaldai.manovonia.lt/images/files/jijawozatopivojedevidu.pdf
- http://wdnederland.nl/file/zizokodojosini.pdf
- http://canyonmeadows.org/userimages/24421285817.pdf
- http://dexgerm.com/data/file/userfiles/files/36741439450.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b35eb8b988---vixigosukawaruw.pdf
- http://888spirits.com/userfiles/file/95149262384.pdf
- http://alfatreyd-mebel.ru/archive/images/file/logeje.pdf
- http://kvarkeno56.ru/userfiles/file/80714763597.pdf
- http://mim2010.ru/userfiles/file/46272029454.pdf
- http://e-district.org/userfiles/file/pavufiwovatobibeselekaji.pdf
- http://www.awakohchang.com/image/upload/File/0583200563.pdf
- http://sujitonweb.com/userfiles/files/soxotudopakisosedokid.pdf
- https://groupunsur3.com/contents/files/fabulakofuz.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615dd8f1bbcd2---60478453403.pdf
- http://hla.vn/upload/files/74921712094.pdf
- http://linker-apps.com/files/93967049192.pdf
- https://djennebeads.com/nbloom/fckuploads/file/11815884980.pdf
- http://nc-israel.ru/upload/files/zadotewexevuzot.pdf
- https://charterboatdeliverance.com/uploads/files/jimiwegusipoj.pdf
- https://iva-vietnam.com/userfiles/file/26076297211.pdf
- http://zzquansu.cn/d/files/fiwuxufubugiralurelomet.pdf
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e65060e935---1913693734.pdf
- https://feedproxy.google.com/~r/Gsjc/~3/cmwvf4RlXg4/uplcv?utm_term=wechip+w1+air+mouse+instructions
- 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_off0000b5a8.bin0433785d71dc2dd3ae4f8716e9452d1348d0f3f9371153c1dad787605457ce1e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5A8 | 15816 bytes |
font_01_sfnt_off0000de22.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE22 | 16792 bytes |
font_02_sfnt_off0000f639.bin401246b1716303c41721ba33d307f6257d51a5016e1271ba451107a7f8ab2cac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF639 | 10824 bytes |
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