MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier as malicious. It contains multiple external URLs, including one pointing to an algorithmically-generated PDF, suggesting it is part of a link farm designed to distribute malicious content. The presence of embedded JavaScript, although not fully analyzed due to obfuscation, indicates an attempt to execute code, likely to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=copy9+mod+apk PDF link annotation
- http://www.bash.cl/media/file/lewuxesexijamebaduxurodo.pdfIn PDF document text
- https://brigitte-farner.ch/userfiles/files/24601904065.pdfIn PDF document text
- https://floridagreatescape.com/media/file/98904080515.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/00388d5c100c88fedc3aef199ac3a1c7/gamejojazagiluwofek.pdfIn PDF document text
- http://mikailang.com/userfiles/file/20210915180339_672804890.pdfIn PDF document text
- https://satellietgroep.nl/userfiles/files/nerefawofefigevivedi.pdfIn PDF document text
- https://ribaczpeter.hu/files/file/tasomuv.pdfIn PDF document text
- http://anais.terminarz.online/kosmetyczka/krakow/files/nofob.pdfIn PDF document text
- https://zhbiotech.com/CKEdit/upload/files/70653837286.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/jifidomogutokutisajar.pdfIn PDF document text
- https://hotnews.md/upload/userfiles/files/daregebimezisakus.pdfIn PDF document text
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131b6e6c172d---vavokofez.pdfIn PDF document text
- https://autonoleggioassereto.com/file/borej.pdfIn PDF document text
- http://hidrometa.com/images_upload/files/lejufazuxawaxarofigedasiw.pdfIn PDF document text
- http://corising.info/sa_upload/userfiles/file/20210906140305.pdfIn PDF document text
- http://inbjnews.com/data/cheditor/0603/files/sotifidix.pdfIn PDF document text
- https://smsenerji.com/resimler/files/73854234568.pdfIn PDF document text
- http://www.smartusb.info/images/library/File/70857377770.pdfIn PDF document text
- http://elosc.com/upFile/file///ITX202109011518259261.pdfIn PDF document text
- http://jplus-ag.com/upload/files/BodyFile__612FD45661B5F.pdfIn PDF document text
- http://guojingmall.com/userfiles/file///45384040192.pdfIn PDF document text
- http://hotdeals24x7.com/ci/userfiles/files/58154966794.pdfIn PDF document text
- http://unitec-egypt.net/userfiles/file/99461900442.pdfIn PDF document text
- http://graciaindoutama.com/kingkong/userfiles/files/10757766064.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_off00010856.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10856 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001206d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1206D | 10216 bytes |
SHA-256: df14a6803f4179b5783a07967d82cf3246d38269bb3154c7cff3c8788ed6e28d |
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font_02_sfnt_off00013767.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13767 | 18416 bytes |
SHA-256: 8cc4b82eb8d2c85f2d3cbc5d1289320becaab6152a0c17a58b2b6062f32ad98e |
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