Malicious PDF — malware analysis report

Static analysis result for SHA-256 0823b2773fb29ef0…

MALICIOUS

PDF

71.4 KB Created: 2021-02-13 03:50:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bb616c1243f6ea67341d4c4c932e2783 SHA-1: a69defb64a335cde421feeed965d976d0231588e SHA-256: 0823b2773fb29ef056f56d34427c940f9976403ca934df67ae92c4bd8d666542
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=fossil+fs4552+user+manual PDF link annotation
    • http://kaxidabifibag.iblogger.org/lezixidoraxoxulesude.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417226/normal_601a5ac29f072.pdfIn PDF document text
    • https://cdn.sqhk.co/kixagixupo/nhgjagj/lulemewusin.pdfIn PDF document text
    • http://tevoriveterusof.22web.org/nagatojurep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392209/normal_5fe9f9bc91302.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419413/normal_5fe0a98a58953.pdfIn PDF document text
    • http://midorezif.iblogger.org/bairi_kangana_song_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393022/normal_5fcc53b7403e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380694/normal_5fec079f91804.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/wudibirewuduto/street_fighter_iv_ce_apk_unlocked.pdfIn PDF document text
    • http://tasibufoz.rf.gd/fractions_and_percentages_of_amounts_worksheet_tes.pdfIn PDF document text
    • http://tilawiveso.rf.gd/video_dari_website_android.pdfIn PDF document text
    • http://pepajefosub.epizy.com/adobe_audition_1._5_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/lepefi/76395805394.pdfIn PDF document text
    • http://dabemekos.epizy.com/26388414240.pdfIn PDF document text
    • http://sibubixusa.epizy.com/efftronics_written_test_papers_with_solutions.pdfIn PDF document text
    • http://wuduzinemaz.rf.gd/christmas_drinks_party_invite_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/powerpoint_poster_template_48x36.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_off0000dc69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC69 5212 bytes
SHA-256: 27cf7d6ea370d501f6c8963bc957e08606c5f89c445132667a9a99bc2e8c021b
font_01_sfnt_off0000ee17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE17 10208 bytes
SHA-256: 42b2de35c9326fc56cedd23c9a67f6a5b63e2a5aec31a5c82d0b70fd35a247aa