MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous heuristics point to the PDF acting as a link farm, directing users to compromised CMS upload storage and disposable hosting sites. These URLs are likely used to host further malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://medvor.ru/uplcv?utm_term=chocolate+quizzes+and+answers
- https://skinrepublic.vn/webroot/img/files/52935683231.pdf
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/s2g6elts6n45l2v8j4kvds92q4/fejivur.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2ec2202ea---87194864914.pdf
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/k2mueuhubgdpb99qsldv2uc3v4/tavopagadajola.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071e892d2019---bavuvotuni.pdf
- https://angkorphotographyguide.com/userfiles/file/83353138952.pdf
- https://ikima.fr/uploads/file/bezixulaparobivob.pdf
- https://santevita-bg.com/ckfinder/userfiles/files/gapinasix.pdf
- http://toicodonlyson.com/uploads/files/pogusolituvizovixon.pdf
- http://acecaalcoy.com/userfiles/file/79214176264.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7927ed15d6---80611771644.pdf
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eef777df19---pudabi.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607392a4b064b---66747463505.pdf
- https://vishalahospitality.com/ckfinder/userfiles/files/zinozakipi.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/m052r959dkceccmqvleku3lbjm/fixenifi.pdf
- http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/lvloqljb2hpfqvunuof5f4j246/kovikigilefanunarijorebu.pdf
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160db4fface36f---fugovupidufo.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072c662cf914---xepinanodef.pdf
- http://banhangcongnghe.com/upload/FCK/file/rulijapawodobafuwofetudor.pdf
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/9aed640c2583a5537bd44056f63a6236/64915978174.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_off0000c6b6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6B6 | 16792 bytes |
font_01_sfnt_off0000decd.bin9b3b47155703e63260c94d297e2a6e434179d6a70497f1199720cc2ba27fac9a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDECD | 10888 bytes |
font_02_sfnt_off0000f7df.bin8d7934abe5be9331b2399e2a96d19ad4b0ca58975f3454e307ad32c6596f8b22 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7DF | 16892 bytes |
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