Malicious PDF — malware analysis report

Static analysis result for SHA-256 041ba172ea06f10d…

MALICIOUS

PDF

69.5 KB Created: 2021-02-07 20:49:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b7d89132b287a1b2c5db350989a2e798 SHA-1: 32e0c101f356b142e32e4a04f2d1a395c278702e SHA-256: 041ba172ea06f10de68381bf6c7a8592f44f6f1f1e11a97307a5f8a89169bc45
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://baarspo.ru/wb?keyword=android%20auto%20sync%203%20apps PDF link annotation
    • http://slmit.fun/reported_speech_indirect_questions_exercisesp0v6l.pdfIn PDF document text
    • http://7lessons.website/cait_fallout_4_voicepu1jx.pdfIn PDF document text
    • http://helpverifedbadges.com/visual_culture_the_reader31yeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414873/normal_6014f312b1a09.pdfIn PDF document text
    • http://mailedflkf.site/7126426347wty1z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375716/normal_6014903cf1acb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426271/normal_5fc6193b4c6ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444649/normal_601b970f51af1.pdfIn PDF document text
    • http://logoped-samara.ru/busta_rhymes_discography_torrentzy4d0.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/bogeguva/56627639387.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/center_of_excellence_in_information_technology_philippines.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/vectors_vs_scalars_worksheet.pdfIn PDF document text
    • http://pazoluno.epizy.com/emulator_ps2_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/bottomsheetdialogfragment_peek_height.pdfIn PDF document text
    • http://botesuni.epizy.com/compensation_plan_template.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_off0000d6eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6EB 5292 bytes
SHA-256: 04434ad77d13bdc6343607e35fe4e5982c4685043f0ca68aaefb89fe7477da6e
font_01_sfnt_off0000e8ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FF 9440 bytes
SHA-256: 0fc0a935724a7ed550738be81fd3bcccf0c92d39541be326da5811c748945f5b