Malicious PDF — malware analysis report

Static analysis result for SHA-256 c53db2001c5fb727…

MALICIOUS

PDF

70.3 KB Created: 2021-02-15 08:52:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0f258f3c94a14ba56152f73799fbcda5 SHA-1: f02ec21fb591632644456f4335b38c42c1e04da4 SHA-256: c53db2001c5fb72701c4d885456a579fea021cf14545d1325ddbaf426ddea612
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/aws?utm_term=ben+10+alien+force+psp+game PDF link annotation
    • http://sijazoge.iblogger.org/catalyst_9400_sup_1_datasheet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383917/normal_601875ec678b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390324/normal_601a3f9d543f2.pdfIn PDF document text
    • http://xeresorejal.iblogger.org/chimera_1._3._9.pdfIn PDF document text
    • http://kuvofejom.iblogger.org/56731994844.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409114/normal_6003a424ebb4e.pdfIn PDF document text
    • http://vofovadero.22web.org/chrome_offline_32_bit_xp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401691/normal_6017221b5d7a9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478950/normal_5fff364d6903a.pdfIn PDF document text
    • https://cdn.sqhk.co/dorusafe/jgifY2E/november_2020_election_ballot_illinois.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fivamoxopel.epizy.com/kiguwebekixejel.pdfIn PDF document text
    • http://fudowoxalukiki.rf.gd/calendario_septiembre_2019_colombia.pdfIn PDF document text
    • http://jexonuwunow.epizy.com/data_sheet_international_paint.pdfIn PDF document text
    • http://velumosak.epizy.com/cube_world_steam_guide.pdfIn PDF document text
    • http://kesufelitam.rf.gd/jurassic_park_theme_sheet_music_baritone.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_off0000d46c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD46C 5576 bytes
SHA-256: 3b049a9af0655d628932d7be43d0d7d38c496124d23ef7a9c23aac3b0645e264
font_01_sfnt_off0000e75b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE75B 11168 bytes
SHA-256: 4f89219fb7e78dc5f07536acbd52f77436a1e8b65e4df1103522ffeae20e10f4