MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristic 'SE_URGENCY_LURE' suggests the document attempts to create a false sense of urgency to prompt user action. The presence of numerous external URIs, including one pointing to 'synerhu.ru', indicates a likely attempt to redirect the user to a malicious website for credential harvesting or further payload delivery. No scripts were extracted, but the PDF structure and embedded URIs are sufficient to infer a phishing or downloader attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=paid+apps+sales+pro+apk PDF link annotation
- http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/68582538379.pdfIn PDF document text
- http://cudicio.it/images/file/31346143227.pdfIn PDF document text
- https://tekartltd.com/upload/files/39483749426.pdfIn PDF document text
- http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613509446a408---15552210498.pdfIn PDF document text
- http://hbtsap.com/Upfiles/news/file///69999921159.pdfIn PDF document text
- http://koreaseowon.com/ckupload/files/xiluxudozogu.pdfIn PDF document text
- http://tourister.kr/userfiles/file/24307712046.pdfIn PDF document text
- http://sovaimm.it/userfiles/files/87737330976.pdfIn PDF document text
- http://bookblog.kr/data/file/files/69162044875.pdfIn PDF document text
- https://trompis-tondschungel.de/userfiles/file/gatulex.pdfIn PDF document text
- http://moestuinwebshop.nl/userfiles/file/15924736522.pdfIn PDF document text
- https://vsetinrally.cz/userfiles/file/53191394462.pdfIn PDF document text
- https://pacie.vn/web/uploads/files/wajuwofolekomusoxavo.pdfIn PDF document text
- https://msiutilities.net/documents/4450298775.pdfIn PDF document text
- http://bukhatirhomes.com/userfiles/file/woxegokeroxefaxira.pdfIn PDF document text
- https://artedeeducar.com.br/ckfinder/userfiles/files/pepududatogemofoxasazazav.pdfIn PDF document text
- http://veszpremlizards.hu/_user/file/26215022067.pdfIn PDF document text
- https://netron.pt/app/webroot/media/files/kunexepapiwuwitagugipuxi.pdfIn PDF document text
- http://around-sicily.net/userfiles/file/gulidinavodabamikejavede.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133a7710accd---pakosetoviranesulovijini.pdfIn PDF document text
- http://tomboy2.com/images/library/File/62437684749.pdfIn PDF document text
- http://dc-07b6a75bc4d0.breakthrough-physical-therapy.com/userfiles/files/30089328462.pdfIn PDF document text
- https://sitycare.com/FCK-UserFiles/files/vasapuvukajitesunen.pdfIn PDF document text
- http://phutungototuanphat.com/img-tvdl/files/soluxatogefuxudotuwolo.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_off0000d752.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD752 | 19416 bytes |
SHA-256: 8ecec2255c378c4b6091f404eacdd6c2469977324743c0b378fdb46b2ab7e1c6 |
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font_01_sfnt_off00010abd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ABD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000122d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122D4 | 10276 bytes |
SHA-256: 5384203254dd3575da26b35873620941b0a90c8b6f975713bf96a54ecb05ee01 |
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