MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and flagged by an ML classifier, indicating a high likelihood of malicious intent. Heuristics suggest it functions as a link farm and employs a password-protected archive lure, commonly used to bypass security filters. The presence of numerous external URIs, including one pointing to 'synerhu.ru', suggests the document is designed to redirect users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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=como+asociar+un+telefono+android+a+mi+cuenta+google PDF link annotation
- http://rockycheng.com/ckfinder/userfiles/files/35140771569.pdfIn PDF document text
- https://aymexco.eu/ckfinder/userfiles/files/movonadopufijen.pdfIn PDF document text
- https://femagnet.com/upload/edu/article/file/33770842153.pdfIn PDF document text
- http://mundialimportweb.com/userfiles/file/lasukapusegex.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/66b127f0279589972176212b6ca4f7a6/fowuvujijibejedes.pdfIn PDF document text
- http://abbeloosschinkels.be/userfiles/file/71934615575.pdfIn PDF document text
- http://singer-island-condos.com/userfiles/files/zimeteduvosonirajopezo.pdfIn PDF document text
- https://marugame.hk/editor_upload/file/4720977436.pdfIn PDF document text
- http://nontaromclinic.com/ckfinder/userfiles/files/7297170738.pdfIn PDF document text
- https://bonaparte.cappencms.com/templates/files/lemuzapimaxax.pdfIn PDF document text
- https://ptkas.com/kingkong/userfiles/files/2545825201.pdfIn PDF document text
- http://homesunshinepharma.com/upload/files/12698389554.pdfIn PDF document text
- http://www.herbertvanderbrugghen.nl/draft/malikebemegukamu.pdfIn PDF document text
- https://mosallaesf.ir/uploads/ck/files/35337029665.pdfIn PDF document text
- https://tyko.pl/userfiles/file/jilebitozakaxirajebagovi.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/rd7djmp9fb2s2b97tuhs6742pu/bapojoresiwegegamuratad.pdfIn PDF document text
- http://tunglamgarden.com/images/fck/file/mufazenuzujigabibaxa.pdfIn PDF document text
- http://amsuatrust.org/survey/userfiles/files/xizunepoxataval.pdfIn PDF document text
- http://minisadik-margaritka.ru/admin/ckfinder/userfiles/files/63798510339.pdfIn PDF document text
- http://sicilyontable.it/userfiles/files/junola.pdfIn PDF document text
- http://www.azurwelcomeservices.com/userfiles/file/zemevuxivele.pdfIn PDF document text
- http://screen.by/images/file/91427702763.pdfIn PDF document text
- http://saiprogetti.net/userfiles/files/14834813041.pdfIn PDF document text
- http://ikhmongol.mn/ckfinder/userfiles/files/jokobewonetodimanot.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_off0000de39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE39 | 10952 bytes |
SHA-256: 86c3b117188c264d027e89022c2f450375ef7072116fe1551c91dca445451a30 |
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font_01_sfnt_off0000f771.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF771 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010f83.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F83 | 20088 bytes |
SHA-256: 706620a639096d28c2bece4d52eb257e183837f4060c9ce89f3b4c40fe590ea7 |
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