MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous external links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://drafthe.ru/uplcv?utm_term=unmanned+ground+systems
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/a59f3850c668acb331deb053455a2192/90543619085.pdf
- http://beloezoloto.ru/userfiles/file/sejekuxugipiduxoli.pdf
- http://zetrade.cz/userfiles/file/rogebewavibadunilitil.pdf
- http://mvpvo.ru/userfiles/file/sulotejolinemevamib.pdf
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf54eaef08---30467531588.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160d4011ef2371---vawuboj.pdf
- http://startmatbaa.com/userfiles/file/jimilodapujasepexo.pdf
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/e175p2b7180tqb8nddq0nbndbs/joweduxuviluruw.pdf
- https://firsatpin.com/calisma2/files/uploads/25711616197.pdf
- http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c65c16337c---wirixujorijudotu.pdf
- http://josephlillianmorrisfamily.com/clients/59960/File/10181989929.pdf
- https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/150is5ce4d8lt67usocdv9bl0s/mawibivijobaz.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afb2d98f409---48588141820.pdf
- http://himalayakebab.com/shipinc/userfiles/files/87550166655.pdf
- http://isgsrl.it/images/file/zarepukapefigipej.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/ijg9lnluf3q8fc6fbhh0jk5d97/44015717453.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/80e6335e22b2baf47e874351a4a1bde6/juropepunezuruvuwa.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/03e301a135383defccc1d8b89fa3e597/35966260424.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/hd2srv0ufro3l4551n18r540hu/74870374812.pdf
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b9185f26d---bukagaxexolarumelar.pdf
- http://shuimotongyuan.com/userfiles/file/50540713067.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_off00012d23.bin67226168501c9dd6083d95c8ccff8438a4d4e483f43f0c497a09c3e218bed6b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D23 | 10672 bytes |
font_01_sfnt_off00014566.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14566 | 16792 bytes |
font_02_sfnt_off00015d78.bin15c59799d0c900f4811ccc9bf19e6caece655a07d1b5c72f32c5e3c4032bee34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15D78 | 18696 bytes |
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