MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of numerous external URIs, including links to compromised WordPress upload storage, suggests a phishing or malware distribution scheme. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a malicious PDF designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://garglob.ru/uplcv?utm_term=draft+email+for+sending+resume
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ffcc340073---18604417652.pdf
- https://grdr.org/paidel/ckfinder/userfiles/files/juxobituwideniverusaxe.pdf
- http://kirilmazbardak.com/userfiles/file/kiviratekipagejekeforat.pdf
- https://servicepapik.ro/files/61928726333.pdf
- http://irinabailey.com/upload/files/87872157954.pdf
- https://cplastik.cz/data/cms/file/59430155127.pdf
- https://digitaldaya.com/imagenes/file/20113255696.pdf
- http://japhina.com/upload/file/fewodebojifujajerigobuna.pdf
- http://compsult.net/userfiles/file/31308658580.pdf
- http://martonelektro.hu/files/file/37045876623.pdf
- http://cofetariafraguta.ro/UserFiles/file/lexuzigi.pdf
- http://yugang360.com/upload_fck/file/2021-9-12/20210912102504388720.pdf
- https://preciseenergygroup.com/media/lomotewukot.pdf
- http://alarmy-kamery24.pl/userfiles/file/loxedoposexivukavibugop.pdf
- http://charolais-hessen.de/write/userfiles/file/vigodajidukimagujitezamem.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16139db2f26bf8---suvoju.pdf
- http://freetourscadiz.com/ckfinder/userfiles/files/6981399682.pdf
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/6db06b5aa9838fefe01e6e9d945fca89/23480664628.pdf
- http://hjhchem.com/upload/files/99070116360.pdf
- http://teplospectr.ru/images/files/pizepuzogipoz.pdf
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1613e8497ed3b8---xuvivinalelamif.pdf
- http://speakingaboutnetworking.com/ckfinder/userfiles/files/bazapane.pdf
- http://urdu-hadith.com/survey/userfiles/files/53264742876.pdf
- https://mudraconsultancy.com/uploads/files/vogasinoxonisisi.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_off0000de1b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE1B | 16792 bytes |
font_01_sfnt_off0000f62d.bin973888500695ee11a7d8c4b7f2fea362987a7227561eda2d6e9fcbebf90fec34 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF62D | 17940 bytes |
font_02_sfnt_off00012340.bin793d380d47f85f53494dfd3ad5839dd22dfa94efd4717ea36bb7c1eb0da18601 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12340 | 10796 bytes |
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