MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file identified as malicious by ML classifiers and ClamAV. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The document body, though partially corrupted, references 'Delta airlines sustainability report 2017', likely a lure to encourage users to click on the embedded malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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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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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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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://pelibifir.ru/123?utm_term=delta+airlines+sustainability+report+2017 PDF link annotation
- https://cdn.sqhk.co/rabataxuvax/bKIojdS/world_commodity_prices_definition_economics.pdfIn PDF document text
- https://cdn.sqhk.co/lobinazema/iifVBgj/dirt_bike_tracks_close_to_me.pdfIn PDF document text
- https://cdn.sqhk.co/noneniwetav/Tcggjg1/prison_break_season_4_episode_24_plot.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449395/normal_604935ea12294.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485926/normal_6015b7de8db5d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460057/normal_5fea298cb085b.pdfIn PDF document text
- https://cdn.sqhk.co/pimidima/lhbZlZr/ferejozivopebeg.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454822/normal_603ef9ce152da.pdfIn PDF document text
- https://cdn.sqhk.co/guzowozuk/I3ulUgg/seoul_subway_map_2019.pdfIn PDF document text
- http://vegunax.getenjoyment.net/pulakopudivobemulimudal.pdfIn PDF document text
- http://lotobajigufar.mywebcommunity.org/makro_catalogue_november_2020.pdfIn PDF document text
- http://katipef.medianewsonline.com/types_of_lower_limb_amputation.pdfIn PDF document text
- https://cdn.sqhk.co/kukisigafumi/jWJOaD7/racing_motorsports_parts.pdfIn PDF document text
- http://supusatode.sportsontheweb.net/vinca_alkaloids.pdfIn PDF document text
- http://setokanekema.mygamesonline.org/an_anthology_of_short_stories_icse.pdfIn PDF document text
- http://vijexibat.mywebcommunity.org/zovekuxejimuxaso.pdfIn PDF document text
- https://cdn.sqhk.co/vaxarogajib/qVgeYwy/runescape_raw_shark_price.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454820/normal_601bf9819ffbb.pdfIn PDF document text
- https://cdn.sqhk.co/disegivoji/Iia4Z5G/68609737355.pdfIn PDF document text
- http://kafujaguvo.mygamesonline.org/atmosfera_sprawdzian_nowa_era.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://47ab6ce1-aee6-4086-a8e7-31fe393d2411.filesusr.com/ugd/afbef4_6eeb4c74d19d41a9aa10ad0312de316e.pdf?index=trueIn PDF document text
- https://86a6be6f-1c3f-48a2-98e5-8a654ddc1212.filesusr.com/ugd/027f51_a03b09510629442cb20565163841fe6e.pdf?index=trueIn PDF document text
- https://3c4962d9-41f7-4f14-8396-dad57cc8de20.filesusr.com/ugd/a2de88_38ab8e82f7354dedb73e8e290d763c7a.pdf?index=trueIn PDF document text
- http://kubowulurarekij.myartsonline.com/riwasusogix.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_off000169e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x169E9 | 5460 bytes |
SHA-256: 0f08d407b8b7b6b3f78d234b63b6f93f167337d20c7c5675a383300a331e1fa4 |
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font_01_sfnt_off00017c9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17C9B | 12156 bytes |
SHA-256: cea403b7a8a217518fcc38459a4a7986cd7e2ddf81a74aa03144347149fd91a5 |
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