Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea3d2db2b0e7eddd…

MALICIOUS

PDF

72.5 KB Created: 2021-02-08 06:03:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 72ab625ac6c32d68d3fe9c5e407e3676 SHA-1: 3b58177f4ddb0a751c0d49681f38fb7db87dd768 SHA-256: ea3d2db2b0e7edddc130028d288c196a285ebefd061d5985c9d8a8944bccc2f6
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/aws?utm_term=vanguard+ftse+developed+markets+etf+fact+sheet PDF link annotation
    • https://cdn.sqhk.co/kusedesomawa/aX4Q5i0/larinapifopo.pdfIn PDF document text
    • http://homebig.space/moto_z_play_front_camera_not_workingr8fj3.pdfIn PDF document text
    • http://basiditdcf.space/77124723003lwfbs.pdfIn PDF document text
    • https://gumakini.weebly.com/uploads/1/3/1/4/131414358/zawivutibul.pdfIn PDF document text
    • https://cdn.sqhk.co/juvexafi/ieAujhM/download_shell_racing_mod_apk_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/Esthehi/funny_amazon_review_photos.pdfIn PDF document text
    • https://cdn.sqhk.co/noxomosanena/cgcFlgo/virgin_pulse_promo_code.pdfIn PDF document text
    • http://xupenirulavep.iblogger.org/avast_free_antivirus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wilunimexa.epizy.com/aurabot_leveling_guide_poe.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/big_data_analytics_course_syllabus.pdfIn PDF document text
    • http://zadagudigewe.rf.gd/6th_grade_essay_writing_worksheets.pdfIn PDF document text
    • http://pavejovubebus.rf.gd/saxophone_arpeggios.pdfIn PDF document text
    • https://s3.amazonaws.com/getizar/78420592910.pdfIn PDF document text
    • http://jawikaginixuxuz.rf.gd/barclays_ppi_claim_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/82595078193.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_off0000db51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB51 5656 bytes
SHA-256: 6ebc096c05fcbcc2070a3260eac39f770a25c9e540007925335fa44a3b16689c
font_01_sfnt_off0000ee7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7D 11384 bytes
SHA-256: f8c8664722d06f92e61db8a13e33b366df0cab6ce68771f1bd741713162a3eaf