Malicious PDF — malware analysis report

Static analysis result for SHA-256 db4ec7267868d6c9…

MALICIOUS

PDF

75.8 KB Created: 2021-05-18 12:46:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: adb0f91e4996279952e5c4874bf468b1 SHA-1: ae99f847f2a732b2758d1d88fa6f96afdf2c91bf SHA-256: db4ec7267868d6c96ba9a3a53e8a50607447ba2151e7eafb59bd0f21fab7c414
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a site offering a 'free printable circuit breaker directory template', which is a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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=free+printable+circuit+breaker+directory+template PDF link annotation
    • http://molipetofokeva.22web.org/koweja.pdfIn PDF document text
    • http://zofanelo.22web.org/89570084610.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385026/normal_60334e73c5aba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488116/normal_6012ba0b3bd8f.pdfIn PDF document text
    • http://sezutupinamizan.22web.org/65532653298.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394072/normal_603e4ec41f87b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404529/normal_6004b8f276176.pdfIn PDF document text
    • http://zufutefej.22web.org/casio_g_shock_ga_100cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375700/normal_604a780c54654.pdfIn PDF document text
    • http://zejadovota.iblogger.org/14305337945.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403824/normal_5fd103ab4cc08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418365/normal_60310fbb9a0a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374540/normal_606e2d6737de0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/naxigijotonirur.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/anandam_full_movie_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/which_nespresso_vertuo_pods_are_best_for_latte.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/my_talking_tom_apk_mod_version.pdfIn PDF document text
    • http://duxejuxaxeze.epizy.com/karunya_benevolent_fund_form.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/indian_actors_photos_free.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/podabifeveburosisolegav.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/boy_scout_store_oakland_new_jersey.pdfIn PDF document text
    • http://nanomunem.epizy.com/prevent_double_form_submission_javascript.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/deedy_resume_template_overleaf.pdfIn PDF document text
    • http://nalumilejoburo.rf.gd/blobie._io_mod_apk.pdfIn PDF document text
    • http://zetafilutebes.rf.gd/definition_of_climate_change_in_south_africa.pdfIn PDF document text
    • http://gutefidinasat.rf.gd/lijelegudal.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_off0000eb53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB53 5304 bytes
SHA-256: f7391405a345feb3cf67263ab31ef492cc4497c9002ba8df768b9681a2445d90
font_01_sfnt_off0000fd52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD52 10552 bytes
SHA-256: e46f853d4dcb57cb5526d74ca49fe735019e13ec9413f8864f66136a138c0b27

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