Malicious PDF — malware analysis report

Static analysis result for SHA-256 27afb30792e88f54…

MALICIOUS

PDF

74.8 KB Created: 2021-03-23 23:46:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 47edc9e7f228299270c222431db655c4 SHA-1: 4a0dbb1879363f15c11b0d734295672d7455f8c6 SHA-256: 27afb30792e88f543996f66bea6c9fcac286fe0a976d14d74cd47bf720aa331b
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded URLs, with one prominent URL pointing to a suspicious domain (`soxebez.ru`) that is likely used for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a book title, which is a common tactic for social engineering. The presence of multiple disposable hosting links further indicates a malicious intent to host malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small 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.
  • 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://soxebez.ru/wix?keyword=uta+hagen+respect+for+acting+pdf PDF link annotation
    • http://rawiduti.medianewsonline.com/idealist_retmen_kitab.pdfIn PDF document text
    • http://terugesit.iblogger.org/12204268117.pdfIn PDF document text
    • http://xebepadizupen.22web.org/how_to_fix_a_tappan_gas_oven.pdfIn PDF document text
    • https://cdn.sqhk.co/nigalasiline/kiejhFJ/monster_race_car_driver.pdfIn PDF document text
    • http://mevukavotidu.getenjoyment.net/translating_verbal_expressions_into_algebraic_expressions.pdfIn PDF document text
    • https://cdn.sqhk.co/wenisuvuroju/j3IYiih/kupefulasejapasop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fudedeki.rf.gd/fepufugefometowaser.pdfIn PDF document text
    • http://setowibuvi.epizy.com/dizobajaxenejofavusix.pdfIn PDF document text
    • http://dalumawinalejat.epizy.com/how_to_use_coffee_maker_with_grinder.pdfIn PDF document text
    • http://jasopiwutuv.epizy.com/agenda_escolar_2019_para_imprimir.pdfIn PDF document text
    • http://pulovuvaf.epizy.com/jopiloduxosavotujad.pdfIn PDF document text
    • http://jotudokizer.onlinewebshop.net/benedetta_parodi_libro.pdfIn PDF document text
    • http://jazupizewatabal.epizy.com/28480611393.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/2178934476.pdfIn PDF document text
    • http://xufoziminep.onlinewebshop.net/sapanosuwosebev.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/5676403232.pdfIn PDF document text
    • http://jisixapuwalim.epizy.com/82188838097.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/ford_focus_2003_se_parts_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/the_boondocks_season_5_videos.pdfIn PDF document text
    • http://legabukev.epizy.com/yamaha_704_remote_control_manual.pdfIn PDF document text
    • http://xilutetixu.epizy.com/37695748212.pdfIn PDF document text
    • http://zexukojol.rf.gd/asignaturas_ingenieria_informatica_uned.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/70314617288.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.

FilenameKindSourceSize
font_00_sfnt_off0000e6aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AA 5376 bytes
SHA-256: ed1ffda070c61ff2576768299db3b4ad688c1bd62f502587d43cd25992a8a709
font_01_sfnt_off0000f8f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F6 11076 bytes
SHA-256: 9670c58aeb4bcad81984276b16fa2ebeb615e0b2b6632de8c02e12b3bc8e064b

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