MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by a ML classifier and ClamAV, indicating a phishing or trojan threat. It contains numerous links to external resources, including a suspicious URL on 'irlanc.ru' which is likely part of a phishing campaign. The document body, though heavily obfuscated, suggests a lure related to 'Barrons 1100 word list pdf' and uses wkhtmltopdf, indicating it was likely generated programmatically to host a collection of links. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports the link farm and disposable hosting nature of the document, aimed at tricking users into clicking malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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/pbw?utm_term=barrons+1100+word+list+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4412763/normal_5feccb4d108dc.pdfIn PDF document text
- https://xemedibapasuv.weebly.com/uploads/1/3/2/6/132695509/9520767.pdfIn PDF document text
- https://papozigej.weebly.com/uploads/1/3/1/8/131858530/kiwukupusuliboniwibu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417037/normal_60334aa24379e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://pifidopexi.pbworks.com/f/download_ultrasurf_for_pc_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/857f60e1-6869-4913-a00d-3f911c4d6b96/waxifesilaxamututev.pdfIn PDF document text
- http://mutoteja.pbworks.com/f/how_to_tell_if_your_princess_beanie_baby_is_worth_money.pdfIn PDF document text
- http://jananevava.pbworks.com/f/82368422312.pdfIn PDF document text
- http://liguduper.pbworks.com/w/file/fetch/144451656/75763162766.pdfIn PDF document text
- http://sapixesut.pbworks.com/f/mefurizurinurenutijolosur.pdfIn PDF document text
- http://didaneguk.pbworks.com/f/69852545501.pdfIn PDF document text
- http://refarumiba.pbworks.com/w/file/fetch/144600495/can_i_pull_my_police_report_online.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dde22a79-abb6-4b30-b23c-5c343de25944/bsa_sweet_22_6-18x40_review.pdfIn PDF document text
- http://kigemulu.pbworks.com/w/file/fetch/144547707/15602055611.pdfIn PDF document text
- http://bajupuko.pbworks.com/w/file/fetch/144831840/how_to_win_triple_diamond_slot_machine.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://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001282c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1282C | 5040 bytes |
SHA-256: daf961e3f50401c0d235c5fdf38316be57575705025380ccbbc83b583c9664bd |
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font_01_sfnt_off0001395c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1395C | 11888 bytes |
SHA-256: 9a8e1a676e26f31156526f6f18cd8e7e650eaa2855973b8e8f4a683b0cd5432c |
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font_02_sfnt_off00016146.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16146 | 16092 bytes |
SHA-256: 39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67 |
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font_03_sfnt_off0001760d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1760D | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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