Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd1936aed6a03b42…

MALICIOUS

PDF

105.6 KB Created: 2021-03-05 01:43:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 80ce3fa66ed92e4227f50a950af44673 SHA-1: 0118c40f04076c86b7c711e283bacd8dfcbfbe1e SHA-256: cd1936aed6a03b4248505f2bb240c68565ca3628358f85faa897d4f388d05cd3
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 trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to firearm ammunition, suggesting a phishing or social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://druttle.ru/strik?utm_term=what+ammo+does+a+ruger+mini+14+use PDF link annotation
    • http://jajitefufig.iblogger.org/android_pelvis_diameters.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426695/normal_6033deb52528c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375355/normal_603b1a82213ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402262/normal_5fe7adc0bc65f.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/lebopowebelafezulova.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422368/normal_5ff5afe14aa64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387933/normal_5fd8e53492a9a.pdfIn PDF document text
    • https://cdn.sqhk.co/kewudomavave/po3hfjb/asteroid_warning_2020_april_29.pdfIn PDF document text
    • https://cdn.sqhk.co/rowubuvuke/C6Sieuw/final_fantasy_iv_advance_romhacking.pdfIn PDF document text
    • https://cdn.sqhk.co/tetaxekumipi/UpgchfK/92101605589.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuwuxubemepimox.rf.gd/53434274497.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/57602076884.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/cholesterol_dietary_advice_sheet.pdfIn PDF document text
    • http://mujebik.atwebpages.com/66118498221.pdfIn PDF document text
    • http://mugudupo.epizy.com/isopropyl_chloroformate_cas_no.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/the_wave_2015_full_movie_watch_online.pdfIn PDF document text
    • http://soneloratugop.epizy.com/teaching_reading_approaches.pdfIn PDF document text
    • http://zovitox.epizy.com/hdfc_mutual_fund_fact_sheet_november_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/samsung_verizon_wireless_network_extender_scs-2u01_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/how_do_you_convert_angle_measures_to_degrees.pdfIn PDF document text
    • https://s3.amazonaws.com/masevewi/bihar_daroga_question_paper.pdfIn PDF document text
    • http://liraperuwuw.atwebpages.com/microsoft_excel_projects_for_college_students.pdfIn PDF document text
    • https://s3.amazonaws.com/lepefi/angular_6_reset_form_without_validation.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_off00015e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15E0D 5360 bytes
SHA-256: 81fa515bef7a45c6a1be827dd323676fa98c05b5b9159a728e760a958f4ae1ec
font_01_sfnt_off0001702d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1702D 11908 bytes
SHA-256: 58163bd5dde74b17a025dd17583d2f7cbad3f099e267dc193dbf4fe7204fa8bc

Open this report in the interactive analyzer, or submit your own file for analysis.