PDF malware analysis — malicious · ecb8cde5ab9fc54e

MALICIOUS

PDF

78.1 KB Created: 2021-03-17 19:03:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: efdf3ff8b55edcdffd3a812460afaac7 SHA-1: 6f03705ca15784489d377059a755df67e1a43067 SHA-256: ecb8cde5ab9fc54ef3da330e7bfc9727ee009fe38f3b38e357945c07658e5be6

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that redirects to a malicious domain, likely intended to phish credentials or deliver a secondary payload. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the presence of external URIs suggests an attempt to lead the user to a compromised site.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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/wix?keyword=resistencia+electricas+industriales
- http://xukiwowarenop.22web.org/functions_of_administrative_law.pdf
- http://hh666o.site/the_dream_thieves_summarygvpe0.pdf
- https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/e98dca7fd3e8.pdf
- https://darurirajilubi.weebly.com/uploads/1/3/4/3/134318819/dobebemuzuketida.pdf
- http://xejiwov.iblogger.org/39078215700.pdf
- http://fudupavebinexad.22web.org/64549441462.pdf
- http://pazolozul.mypressonline.com/70701591909.pdf
- https://cdn-cms.f-static.net/uploads/4389355/normal_602732396ffc9.pdf
- http://speak4pro.com/bridgestone_bicycle_cataloguez5fj4.pdf
- http://jakor.pro/lg_washing_machine_top_loader_moldc3qne.pdf
- https://cdn-cms.f-static.net/uploads/4475577/normal_602a3e943f2d5.pdf
- https://beluxavin.weebly.com/uploads/1/3/4/5/134507718/e5750b84e.pdf
- https://duvutotan.weebly.com/uploads/1/3/0/7/130775700/3285536.pdf
- https://dubuweni.weebly.com/uploads/1/3/1/6/131637072/sezepezi.pdf
- https://static.s123-cdn-static.com/uploads/4473632/normal_5fcc4866d7768.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://wunekoxewufomaf.epizy.com/defujo.pdf
- http://dinixebun.epizy.com/binipemase.pdf
- http://tamegebodow.epizy.com/90973402008.pdf
- http://sadozejeko.myartsonline.com/80994086360.pdf
- http://rukujabaxelab.epizy.com/jevezot.pdf
- http://risuveliki.rf.gd/88838868551.pdf
- http://gudugapapilile.atwebpages.com/kibosogaxidivanalamobo.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_off0000ed73.bin` `de048725e31e00e99bb30c437225522d48f3e9e7e9d6b57b9c399a1e54c3621c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED73	4940 bytes
`font_01_sfnt_off0000fe50.bin` `1e0c385e44c963f2ce33acfb5c76a86a7173fb4a3b1b9d26bd8c6588f6e1f892`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE50	13316 bytes

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