Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bf77ab466d3ca19…

MALICIOUS

PDF

67.7 KB Created: 2021-02-13 23:09:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 8d5402bc4579ad0a4213e2a750e014a8 SHA-1: 3adc413e9b631d9cdb0ffdf311c48dc31bd75a22 SHA-256: 1bf77ab466d3ca1992e6b249de6c42cf0b8fd9a4259f401d5c75e66967073ce1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://druttle.ru/wix?keyword=mary+chilton+dar+foundation PDF link annotation
    • http://rorixuge.iblogger.org/buzetopewotenotos.pdfIn PDF document text
    • https://cdn.sqhk.co/sunalikefazo/072Ihgr/epson_iprint_fur_windows_10_free_download.pdfIn PDF document text
    • https://vusejamujaled.weebly.com/uploads/1/3/1/4/131437056/pepaxigetix-lezekejajadusa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368242/normal_602410f1db224.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383464/normal_600a7ac37be6e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419441/normal_5fdefb4a35064.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/fs5Fgcx/sonic_the_hedgehog_galaxea_coral_care.pdfIn PDF document text
    • http://sidegut.22web.org/chf_full_form_in_currency.pdfIn PDF document text
    • http://mobivegu.22web.org/cardboard_tubes_for_concrete_forms.pdfIn PDF document text
    • https://cdn.sqhk.co/wowobavukelo/0WXhdia/72598026856.pdfIn PDF document text
    • https://tebizojejifijof.weebly.com/uploads/1/3/4/5/134589629/xowepu.pdfIn PDF document text
    • http://fekedusotuxena.iblogger.org/wibudopomisu.pdfIn PDF document text
    • http://somukegizos.66ghz.com/21575771285.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491686/normal_5fff9a27727a7.pdfIn PDF document text
    • https://xefozevinunakab.weebly.com/uploads/1/3/4/3/134340699/8368ffc8a083.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dulizarunagisu.epizy.com/padilozonogedapexafinow.pdfIn PDF document text
    • http://pisotusapuveg.epizy.com/brittany_howard_jaime_zip.pdfIn PDF document text
    • http://robopawize.epizy.com/55469759739.pdfIn PDF document text
    • http://gasigigi.rf.gd/89670959757.pdfIn PDF document text
    • http://muzafevabuma.rf.gd/logo_quiz_ultimate_answers_level_6.pdfIn PDF document text
    • http://xezeruv.epizy.com/dixukozowirutex.pdfIn PDF document text
    • http://baxamudixilado.rf.gd/fazuzoporomikubokut.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_off0000cc68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC68 5040 bytes
SHA-256: 29241e8cee38df429b10478d1189e368fb3273fb99a605aa469b7eda285464d0
font_01_sfnt_off0000dd9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9B 10488 bytes
SHA-256: 59a0f8a3844b019b7a23ee42fe73b5469b6f206b2c4bdbd4874cf6c32ed0d286

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