MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristic 'PDF_SEO_LINK_FARM' suggests the document contains a large number of external links, likely to facilitate phishing or SEO spam. The presence of an embedded URL pointing to 'trafffi.ru' further supports a phishing or malicious content delivery vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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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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://trafffi.ru/123?utm_term=reddit+textbook+pdf+request
- https://cdn-cms.f-static.net/uploads/4421776/normal_5fa4392cc5a1b.pdf
- https://cdn-cms.f-static.net/uploads/4381756/normal_5f9870da5bb1a.pdf
- https://gigewobejej.weebly.com/uploads/1/3/4/6/134638222/duduvefab.pdf
- https://gobisenuginofaz.weebly.com/uploads/1/3/4/4/134490447/lamebuzujuxabekufif.pdf
- https://cdn-cms.f-static.net/uploads/4379473/normal_5f8fada752c27.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/wonoti/automation_anywhere_user_manual_free_download.pdf
- https://s3.amazonaws.com/nitajosasa/47323410863.pdf
- https://s3.amazonaws.com/nemafu/electronic_pulse_massager_walmart.pdf
- https://s3.amazonaws.com/rijaliwiguvex/runegomirufesizonulepage.pdf
- https://s3.amazonaws.com/vaxebisapesi/oxidation_of_primary_alcohols_to_carboxylic_acids.pdf
- https://s3.amazonaws.com/wisuw/42517256090.pdf
- https://s3.amazonaws.com/vososasoxumete/zuxox.pdf
- https://s3.amazonaws.com/sivanira/applied_anatomy_of_the_heart_and_great_vessels.pdf
- https://s3.amazonaws.com/xifabilejilab/wabox.pdf
- https://s3.amazonaws.com/somamere/clone_hero_logo.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e786.bin008b683fbb88623fd9b55be03cb9181206b947b4f49eb192cd57682caf5705a6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE786 | 5196 bytes |
font_01_sfnt_off0000f949.bin973726dfcffa842b4b245fb892dba4b97bd974314a50422df1cfe362cc3d1ea9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF949 | 11620 bytes |
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