PDF malware analysis — malicious · 26e4283b57f379c9

MALICIOUS

PDF

73.9 KB Created: 2021-04-03 21:54:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 81689700358525173fb49f81159f7eb4 SHA-1: db226d40d78337625ec868ca573298f568107890 SHA-256: 26e4283b57f379c952f8f135597d951de99beed499ff3ab0e0eb1194def38ac4

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing or trojan variant. It contains an embedded URL pointing to 'resalured.ru', which is highly suspicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://resalured.ru/strik?utm_term=how+to+enter+pandaria
- http://malolufixanovas.sportsontheweb.net/advaita_vedanta_a_philosophical_reconstruction.pdf
- http://premial.su/absorption_atelectasis_peepd0162.pdf
- http://axecheat7.xyz/driver_installation_failureca6be.pdf
- https://static.s123-cdn-static.com/uploads/4405946/normal_5ff4269861b9d.pdf
- http://lamakexo.scienceontheweb.net/zulezurodifinu.pdf
- http://motubudasuvapan.medianewsonline.com/sahih_bukhari_melayu.pdf
- http://bisapusid.mypressonline.com/soil_mechanics_and_foundation_by_bc_punmia.pdf
- https://cdn-cms.f-static.net/uploads/4481161/normal_6053358c70d6f.pdf
- http://reduslim-buy.site/new_york_company_outlet_memphis_tnqik2n.pdf
- https://cdn-cms.f-static.net/uploads/4499935/normal_5fd821f66cd42.pdf
- http://it50life.pro/23072689794n3cjv.pdf
- http://xatovapotogu.mywebcommunity.org/discuss_the_capital_structure_theory.pdf
- http://kebenoda.scienceontheweb.net/bass_guitar_jazz_chords.pdf
- http://wapadax.scienceontheweb.net/oxford_dictionary_of_banking_and_finance_free.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://nomamazuzut.atwebpages.com/blue_panther_books.pdf
- http://pimobepetokonud.myartsonline.com/what_is_a_simple_molecular_solid.pdf
- http://rojanesifilagu.myartsonline.com/lubudaputiravex.pdf
- http://sopavame.onlinewebshop.net/dazur.pdf
- http://saluwagasa.onlinewebshop.net/vazogifuronubego.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_off0000e487.bin` `6107a8d8bc82646a869e73cee7a86a65ab0b219685cb6c6b63f692539c2ecbdc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE487	4796 bytes
`font_01_sfnt_off0000f4f1.bin` `3afc743edef0fa756f36fe4ac2d4bfd88fb2521dc1203e2835a90108b52e6012`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF4F1	10720 bytes

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