MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the PDF acts as a link farm, directing users to multiple compromised websites and potentially disposable hosting, which is a common tactic for phishing or malware distribution. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest an attempt to exploit users via malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 http://ecohouse-lab.de/userfiles/file/bowusunajopogifopudagaj.pdf
- http://nage-z.com/ckfinder/userfiles/files/64485941614.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160727985c8bf9---wawawigetolikex.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/hnsdcm1t2fh3psmm0ig077f9t0/wexilidofupoxub.pdf
- http://aunay-sous-auneau.fr/ckfinder/userfiles/files/votevarunobalupuzabuvib.pdf
- http://immobiliareborghi.com/userfiles/files/66061060023.pdf
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/esj5c5mp9pa865fejcsp0mi850/manivikovuvida.pdf
- https://diarch.in/WYSIWYGImage/file/setegixem.pdf
- https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/6e94d52a99fb826026f6d91b940343b5/rirokagiwubidulezuziv.pdf
- https://imagebuzz.net/ckfinder/userfiles/files/gogetazagejowikiwafewaku.pdf
- http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160804e5a50f16---88456927468.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/4ab567580b4cb13473642f24c81af0a0/11146598713.pdf
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad929e2ebce---12622999557.pdf
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/ee9b9c73d2281247b849cde11a7a92ad/97828121543.pdf
- http://jar-ted.pl/file/14912042221.pdf
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/qvk27349ecpio9k7jh05k79hj1/66654946854.pdf
- http://corising.info/sa_upload/userfiles/file/20210807083759.pdf
- http://dharmapremipariwar.org/userfiles/file/vegupubusaj.pdf
- http://vipacademy.org/userfiles/file/35168835984.pdf
- http://cooperclassof1970.com/clients/9656/File/sebib.pdf
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/125a3dc46c8ca994e6d15d3555bc3ae7/77898669594.pdf
- http://parfumerieindex.nl/images/uploads/sagizugovu.pdf
- https://khambenhxahoi115.com/images/files/52041051355.pdf
- http://terralis.eu/catalogue_dynamique/file/8727583346.pdf
- http://sdes.in/uploads/kevutifafojokewatuva.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=sirloin+steak+and+chips+calories
- 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_off0000e455.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE455 | 16792 bytes |
font_01_sfnt_off0000fc67.binb70a47831aa4eaa61f848d1f918f23ab7c9e9c6b74b5012e74b07f925a6f0840 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC67 | 17112 bytes |
font_02_sfnt_off000128d5.bine4858a9e183a998968c96406c501d3301c681596978656001fd1c0d86a7604a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128D5 | 10776 bytes |
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