MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The heuristics reveal that the document functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The presence of numerous URLs, many pointing to disposable hosting or potentially compromised sites, strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 6
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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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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=android+api+code+names
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/j2gqmualpb6ls3qs5lgbjq32m3/zikudasibatagex.pdf
- http://abwcrainhwy.com/uploads/files/foxejazedetumuvidavobigow.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614fe7d763d8c---42020470973.pdf
- http://engroupe.ca/aym_image/files/42145263764.pdf
- https://history.tlshaa.org.tw/ckfinder/userfiles/files/nejavowopofi.pdf
- https://invest.pl/userfiles/file/28446862144.pdf
- https://hydratrend.com/application/third_party/ckfinder/userfiles/files/98447840877.pdf
- http://sd-admin.fazendapenaazul.com/ckeditor/uploads/files/bujaxoferogetamega.pdf
- http://lsneotek.com/ckupload/files/30805160582.pdf
- https://fenixfalt.com/userfiles/file/dunidulupobolujenedevebi.pdf
- https://nacionalequipamentos.com/ckeditor/uploads/files/89969565976.pdf
- http://weiken-rc.com/upload/files/vetitep.pdf
- https://minhgianggroup.vn/upload/files/84322925585.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/161521e9640518---deraxigusefovodaf.pdf
- http://cleangroupbd.com/ck/upload/files/91193830890.pdf
- http://lisaarkinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/85409957293.pdf
- https://cs-nippon-cp.com/mailmagazine/upload/files/bukolijexigu.pdf
- http://bibrka-school.org.ua/ckfinder/userfiles/files/37625585107.pdf
- http://glamour-nsk.ru/ckfinder/userfiles/files/53427646707.pdf
- http://group-anons.ru/userfiles/files/26086795210.pdf
- http://woodwork.pl/ubezpiecz/obrazy/file/nonep.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_off0000ae5c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE5C | 16792 bytes |
font_01_sfnt_off0000c66e.bin66d77ed7aa2701288d8a02fe11980dcaaad0057726528f364aa93bbf5fb27b24 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC66E | 15176 bytes |
font_02_sfnt_off0000ec5b.binb3ce834dbb273de5360a5b4f2890ca2baca40b3e8e77be09a3fda5a5a6f002fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC5B | 10512 bytes |
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