MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with a critical heuristic identifying it as a malicious redirector and a link farm. The primary URL, https://dafemum.ru/award?keyword=acuerdo+de+paz+de+la+habana+pdf, is flagged as malicious. The document body is heavily obfuscated, but the presence of embedded links and the heuristic firings strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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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://dafemum.ru/award?keyword=acuerdo+de+paz+de+la+habana+pdf In PDF document text
- https://cdn.sqhk.co/guwezasov/eOhv2FO/68519882573.pdfIn PDF document text
- http://bimamoked.iblogger.org/dream_interpretation_snake_bite_left_foot.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427544/normal_602c76da8e7df.pdfIn PDF document text
- https://cdn.sqhk.co/fetuxudo/bNhihcv/tyre_tread_depth_check_gauge.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369146/normal_6035526ee7861.pdfIn PDF document text
- http://nusamovepi.22web.org/arm_cortex_r52_technical_reference_manual.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410965/normal_5fea42a9238ce.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454973/normal_5fd1e28a423a7.pdfIn PDF document text
- https://cdn.sqhk.co/gidulikegel/dgjUijY/igt_online_slots_free_play.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470409/normal_6010f20ef20f6.pdfIn PDF document text
- http://bimelar.22web.org/dojegegexapil.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4455403/normal_5fdfcd3ab01b6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4414152/normal_5fd06c112c4de.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://nufurezoguboli.epizy.com/66580247284.pdfIn PDF document text
- https://c78267de-509c-4cb0-9394-6b21b7876e04.filesusr.com/ugd/290ce3_df334079321445799dab28aaa8d6ae6e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5d1ed9a8-c708-4b44-815c-e90751da6709/how_to_connect_samsung_scx-3405fw_printer_to_wifi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/90974c3d-66a1-432a-8ffa-99ce7c6dd9dd/ielts_academic_writing_task_2_samples_band_9_download.pdfIn PDF document text
- https://6f465708-eb37-4ee2-8658-ebeec6cd93ea.filesusr.com/ugd/4bb103_ee72bdb0901d4e4a8e28629c9f9f3b3d.pdf?index=trueIn PDF document text
- http://labazesunug.epizy.com/autodesk_dwf_design_review_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/47837fb2-58b5-42c1-951b-b490dbb2d50b/53533234813.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00016b1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16B1F | 5244 bytes |
SHA-256: dca55c116ad3e8b52c42d125efe17fd627f44f99f0e48e75dd117b7a8f3c64ea |
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font_01_sfnt_off00017cf3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17CF3 | 11884 bytes |
SHA-256: b04142c4b0a7b0740300e92781c01cf1901e32fc98dd96c13db64dfba8453200 |
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