MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which are hosted on compromised or disposable domains, suggesting a phishing or malware distribution scheme. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of UTM parameters in URLs like 'https://synerhu.ru/uplcv?utm_term=download+gumtree+app+for+android' indicate an attempt to lure users to malicious sites. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 https://synerhu.ru/uplcv?utm_term=download+gumtree+app+for+android PDF link annotation
- http://abworder.com/uploads/files/17517475778.pdfIn PDF document text
- http://lamorenj.com/userfiles/files/77731676973.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16131ac52ce093---93915611468.pdfIn PDF document text
- https://cplastik.eu/data/cms/file/58016701303.pdfIn PDF document text
- https://lee-trading.tw/archive/upload/files/sazud.pdfIn PDF document text
- http://skybuildinfraprojects.com/uploads/60195515772.pdfIn PDF document text
- https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/n7n8i43vcsmba5ou9i5rtl8m1t/mirabeka.pdfIn PDF document text
- http://kelkenaghshband.com/app/webroot/img/files/69429722827.pdfIn PDF document text
- https://magicdiscoradio.com/userfiles/file/53032633206.pdfIn PDF document text
- https://bataretak.com/img/files/file/wufefufigojofawepuj.pdfIn PDF document text
- https://fancybox.pamlskovnik.cz/ckfinder/userfiles/files/jupodukabapirafi.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142609272e7d---zuwunaxuluxumixijerojoje.pdfIn PDF document text
- http://emeraldcovepartners.com/_data/images/file/48564097721.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614201950edbf---38444593736.pdfIn PDF document text
- http://www.jfac.kr/ckfinder/userfiles/files/tukamovagero.pdfIn PDF document text
- https://beysukonaklari.com/ckfinder/userfiles/files/tupinezumusexalupimer.pdfIn PDF document text
- http://softwaretesting.kr/club/data/userfiles/file/20210905030707.pdfIn PDF document text
- http://spartapr.com/images/upload/file/56773618903.pdfIn PDF document text
- https://kipass.fr/userfiles/file/jagoluwibazutorofe.pdfIn PDF document text
- http://flapboxes.com/userfiles/files/87862886184.pdfIn PDF document text
- https://bluza-shop.ru/content/File/fezuj.pdfIn PDF document text
- http://zezoalza.com/ckupload/files/vevubim.pdfIn PDF document text
- 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_off0000cbe5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBE5 | 10860 bytes |
SHA-256: c9d8debdd162b0d0d8d098355a6da900128662c34998c038ef05209a86132d8d |
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font_01_sfnt_off0000e4c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4C1 | 17972 bytes |
SHA-256: 67b40f1a1eadacdf3620ac99e54a0faabcfee35f8491e8616c56043a8af2e03f |
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font_02_sfnt_off00011324.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11324 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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