MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to a link farm hosted on disposable domains, suggesting an attempt to obscure the ultimate destination of a payload download. The presence of a download button heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 7
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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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://aviapartner.biz/js/ckfinder/userfiles/files/womobanijojejojaguzof.pdf In PDF document text
- http://diplomat2014.ru/ckfinder/userfiles/files/77084707982.pdfIn PDF document text
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613580f3dd70b---rukepusevijepibipepug.pdfIn PDF document text
- http://erpos.sk/data/files/21048281815.pdfIn PDF document text
- http://crocepadrekolbe.it/userfiles/files/73910242183.pdfIn PDF document text
- https://montpellier-business-plan.com/mbp/upload/images/images/upload/ckfinder/sajekaveg.pdfIn PDF document text
- http://corising.info/sa_upload/userfiles/file/20210912220136.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ed46216a5f---nitulokemorifosiworanabu.pdfIn PDF document text
- https://erdemlerkoleji.com/resimler/files/7237938794.pdfIn PDF document text
- http://heryeryesil.com/resimlerfiles/zitolepiniwibajevefiwo.pdfIn PDF document text
- http://ipceurope.eu/assets/file/teketazezote.pdfIn PDF document text
- http://tuttotop.com/userfiles/files/16444042171.pdfIn PDF document text
- http://theclelandgroup.com/img/upload/file/92206169869.pdfIn PDF document text
- http://mygiftltd.com/userfiles/file/lakoregatiwudumalu.pdfIn PDF document text
- http://rspon.pl/images/wyswig_images/file/gekeziditisiviwef.pdfIn PDF document text
- http://jia-longsofa.com/uploadpic/jialong151126/files/202109080112311965.pdfIn PDF document text
- http://leebyunghun.org/new/upload/board/files/41406752430.pdfIn PDF document text
- https://egf.tw/test2/images/file/1229944943.pdfIn PDF document text
- http://mastera-mix.ru/ckfinder/userfiles/files/megumuraxudibelawozumi.pdfIn PDF document text
- http://snap-drone.com/userfiles/file/16795365585.pdfIn PDF document text
- https://rpdev.org/ckfinder/userfiles/files/68568131961.pdfIn PDF document text
- http://rasciindia.com/firetech/ckupload/files/2722315177.pdfIn PDF document text
- http://rs-entp.com/upload/file/92338875298.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=final+fantasy+tactics+android+portuguesPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f79b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF79B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010fad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FAD | 19396 bytes |
SHA-256: bd10dfcc4fa9743e3ea5cbfc7a81fe4e2fdbe85c7c6f3701eb4e35c8a22f3ddc |
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font_02_sfnt_off000142db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142DB | 10984 bytes |
SHA-256: 1b10ed0c5b9575f277b090cd748a5e4bc0864f83815b46f43208149b323caa68 |
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