MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF sample was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple disposable domains, with one URL pointing to 'irlanc.ru'. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and external links suggest an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 5
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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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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://irlanc.ru/uplcv?utm_term=how+to+access+android+recycle+bin PDF link annotation
- http://emailreceptionist.net/userfiles/file/63582495789.pdfIn PDF document text
- http://metrominicabs.com/survey/userfiles/files/rezek.pdfIn PDF document text
- http://meta-min.com/files/vupodikejerixifida.pdfIn PDF document text
- https://decisionstogo.com/fck_image/file/4341119369.pdfIn PDF document text
- http://architettomontanino.eu/userfiles/files/lakokosamitufizo.pdfIn PDF document text
- http://uptownherndon.com/uploads/files/lejaniforukonamuvez.pdfIn PDF document text
- http://sp3siemianowice.pl/userFiles/files/jafugeloguxegixunelejeg.pdfIn PDF document text
- https://by-express.com/upfiles/editor/files/retinamuf.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141dd8f02fe6---wumajozunubowiwizoteji.pdfIn PDF document text
- http://frickcontrols.com/uploads/files/47038861948.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/92439348594.pdfIn PDF document text
- http://beming.com/ressource/site-image/files/taxaviwigezanulerofevaf.pdfIn PDF document text
- http://viswinkelindex.nl/images/uploads/lusilije.pdfIn PDF document text
- https://magyar-logyogyasz.hu/fileok/file/semojuritixisemozadodaz.pdfIn PDF document text
- http://kutyasturak.hu/images/files/40963479661.pdfIn PDF document text
- http://szjg.hu/images/file/29356500762.pdfIn PDF document text
- https://naveenent.com/administrator/imagetemp/file/34213643918.pdfIn PDF document text
- http://shethof.ch/cgi-bin/dynamisch/file/26404758938.pdfIn PDF document text
- http://xn--djr00fsyfv0o5qgy9u.net/filespath/files/20210902091246.pdfIn PDF document text
- https://sskundal.com/userfiles/file/xopubariwevofaza.pdfIn PDF document text
- http://archetipoingegneria.it/userfiles/files/zuwasobufogetebafejumewo.pdfIn PDF document text
- https://casasholidays.com/scgtest/team-explore/uploads/files/fejefore.pdfIn PDF document text
- http://ageofwonders.buka.ru/sadm_files/90737569542.pdfIn PDF document text
- http://savages.lu/imagesRTE/files/81291858684.pdfIn PDF document text
- http://stamforgtechnologies.com/uploads/zufalatujekilanuwonuvub.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_off0000b0ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0BA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c8d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8D1 | 10692 bytes |
SHA-256: f100c29d8938abe70c45235fc63a41c65c643a0ba45efafdfd485b78232e7661 |
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font_02_sfnt_off0000e17a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE17A | 14892 bytes |
SHA-256: 129bdf9a4ed199d53bd2255e5ad9ab7bc002f4d46042566ae4fa05584c494b47 |
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