Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f76a651b3d7d34d…

MALICIOUS

PDF

68.7 KB Created: 2021-01-28 07:14:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 198c2a3a2fce5d3ab949978eb4e22b30 SHA-1: 830d13255f4e7b85e7036fabcd4d11e1228c9051 SHA-256: 5f76a651b3d7d34d09f3fa9ea6aad2a178185c9a1cea562985a4acf579a78202
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://bologen.ru/wb?keyword=make%20strawberry%20ice%20cream%20in%20a%20blender PDF link annotation
    • http://drive4mclaneeffingham.com/dutefitebavumavuzp9h1r.pdfIn PDF document text
    • https://cdn.sqhk.co/nizekidido/1jfiicK/wubukikume.pdfIn PDF document text
    • http://confirmationhelpcenter.com/samsung_galaxy_core_prime_battery_issuevfand.pdfIn PDF document text
    • http://francobusiness.com/2nd_grade_math_worksheets_additionwpq01.pdfIn PDF document text
    • https://sidilatadafexu.weebly.com/uploads/1/3/1/1/131164021/kamurokidom-vulegokase.pdfIn PDF document text
    • http://gazzsheff.xyz/birapibeburoxyohif.pdfIn PDF document text
    • http://bioforcecolumbia.site/analytical_psychology_its_theory_and_practicejx4f3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xufenazaliwe.epizy.com/despacito_ringtone_only_music.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/vusogigel.pdfIn PDF document text
    • http://rimalapotozuf.epizy.com/online_bike_racing_games_free.pdfIn PDF document text
    • http://xefokezutuvij.epizy.com/aiag_manual_apqp.pdfIn PDF document text
    • http://dabemekos.epizy.com/partnership_agreement_template_free_uk.pdfIn PDF document text
    • http://mikipifovusi.epizy.com/transformers_alternators_sideswipe.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/84573056605.pdfIn PDF document text
    • http://leliruwe.epizy.com/8th_grade_math_ready_book_answers.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_off0000cfaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFAF 5488 bytes
SHA-256: 87a6841c28c685aece068431ae5a28317a460c46d2a6563c8fe44edc7ca2fc23
font_01_sfnt_off0000e268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE268 10408 bytes
SHA-256: c18295777f79a2f439fac4127e69d1d05f35009a752c625545689014eae680ff