MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many hosted on compromised WordPress sites, suggesting a link farm or phishing lure. The embedded content, though obfuscated, appears to be related to 'science puzzles and riddles', a common social engineering tactic to entice users to click malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://catamma.ru/uplcv?utm_term=science+puzzles+and+riddles+with+answers
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088955b1cdbb---66620115256.pdf
- https://bselink.com/userfiles/file/suruzulenituteni.pdf
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/odt780inbqtlnqrl28ppnk4fm5/59000613342.pdf
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/a927b7b7955eeb42225c166df336a51e/98295744035.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/cb8e15e2c12fe8ec66b6d26fa08cfa1f/tipafagatoteg.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2976420e7f---filokelajojosapibevudules.pdf
- http://el-master.ru/userfiles/file/wurafuvonotigetipuralonuf.pdf
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/096e2cd5e0dac07e46565e905be06691/xujab.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/1541ab47b09d6e43e9b5f3b1c734f391/4773132892.pdf
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/aa7e247aaa9d0474d6ea71bc7466da30/benor.pdf
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16092604bd45f3---90284539388.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/k377hnugc8ejk1l8gdr6vqvnq5/zogugevisilibudazudo.pdf
- http://chi-kara.net/userfiles/file/97781699704.pdf
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608d5635602d5---vanenubupe.pdf
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c78a147ca47---fikon.pdf
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/979f08f9bcb600ad39f8c646b484a6d2/27863472114.pdf
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/mi544he3mmsbs6vegpu8atd8ev/suroxile.pdf
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/pu3ccp5mvapv54jem3grufjaut/62311642339.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010005.bin9a8ed4462744324c192065b9803074aadf91f1822235b06d4ed2762a9421cf19 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10005 | 5180 bytes |
font_01_sfnt_off000111a5.bin730966825aebc5f5b3ffef42575daf723b6b7343416c62125b319f5fbb6e28a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A5 | 11072 bytes |
font_02_sfnt_off00013729.bin0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13729 | 4324 bytes |
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