Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c66ea5582af3222…

MALICIOUS

PDF

117.1 KB Created: 2021-03-31 10:44:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1a2e4129b207af47f7e6b75067264cba SHA-1: cee4c891c4eddd8ab0a7e3683481ab8b887a723a SHA-256: 8c66ea5582af322247e4339051feb3bdb80582e98ba57637f675c8771e3ac3c9
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan. The presence of an external URI pointing to 'botokaw.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly indicate malicious intent, likely related to luring users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://botokaw.ru/strik?utm_term=sabertooth+x79+memory
    • https://cdn-cms.f-static.net/uploads/4384308/normal_5fdac406a012b.pdf
    • http://muvirire.22web.org/theoretical_framework_about_tardiness_of_students.pdf
    • http://profapp.pro/how_to_set_up_my_masterbuilt_electric_smokero2xpq.pdf
    • http://pegixudovojap.iblogger.org/90702094530.pdf
    • http://youtube-subscribes.com/malaysia_work_permit_application_formj9uud.pdf
    • http://rezotu.xyz/mifajoxorelage353dw.pdf
    • http://tajezedireg.iblogger.org/kalalomagewen.pdf
    • http://lexukugeru.22web.org/bikasijisiwobidukibaxe.pdf
    • https://static.s123-cdn-static.com/uploads/4414352/normal_5fc6683dccd85.pdf
    • http://tubujek.iblogger.org/abcd_malayalam_daddy_calling_ringtone.pdf
    • https://static.s123-cdn-static.com/uploads/4404750/normal_5fdeb998c7ebc.pdf
    • http://ionatr.fun/545530713df3k2.pdf
    • http://about-fb-support.com/xatatoforawokuvizapgcca1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kijelopazekune/google_chrome_app_for_desktop_free.pdf
    • http://zegegapo.rf.gd/bridget_jones_diary_mad_about_the_boy.pdf
    • http://gopikobupi.epizy.com/fernie_bc_ski_report.pdf
    • http://voxuluvaj.epizy.com/beaucarnea_stricta.pdf
    • http://fudogupadi.rf.gd/18139058242.pdf
    • https://s3.amazonaws.com/vezumobigodub/34933583506.pdf
    • https://s3.amazonaws.com/nitidadufetenu/nomivewijuweverujoneke.pdf
    • https://s3.amazonaws.com/fadupazageraf/authors_purpose_pieed_anchor_chart.pdf
    • http://xumutopefar.rf.gd/boolean_rails_simple_form.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.

FilenameKindSourceSize
font_00_sfnt_off00017f81.bin
c3e0c1e8d8a02e8d5b20f7f7e785dab46a519224ad6f621a2ce493184e7bf888		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17F81 5364 bytes
font_01_sfnt_off000191aa.bin
f287dffef86e2259f185b0a0c2adf8ca6068a51583246bd324fb6e18f06aa48c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x191AA 17164 bytes

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