Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc7ac218cc07008d…

MALICIOUS

PDF

64.8 KB Created: 2021-03-04 05:16:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 435fc80caf8cd4355c5997ab4768657a SHA-1: 3f3286c93a344a5ce28217690213243c8ddae295 SHA-256: dc7ac218cc07008d49b5b6b842d0d479909257690cf4fa5c3b3448a90e57cd57
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://xezojetit.ru/award?keyword=stone+soup+cafe+burleson+tx PDF link annotation
    • http://smartline58.ru/retovawv5gd0.pdfIn PDF document text
    • http://taptopbot.com/fowiletqdyiw.pdfIn PDF document text
    • https://cdn.sqhk.co/kujaruwajovi/ijajeYj/wings_etc_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457305/normal_60250fbf41376.pdfIn PDF document text
    • http://freshka.fun/wiwodowonukali2nv01.pdfIn PDF document text
    • http://presente-top.store/fairfield_county_ohio_sheriff_accident_reportsfizlm.pdfIn PDF document text
    • https://cdn.sqhk.co/dejijadu/hj5rhdF/pentagon_federal_credit_union_15_year_mortgage_rates.pdfIn PDF document text
    • http://english-10.site/what_are_the_elements_of_film_score_composer_dohi55c.pdfIn PDF document text
    • http://filemarker.store/tadulatebugibid7san9.pdfIn PDF document text
    • http://podarokinsta365.site/survival_crafting_games_switchahk3y.pdfIn PDF document text
    • http://storezone.info/13529905253itswt.pdfIn PDF document text
    • http://money-team.site/45060777720riqcs.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/xubifupi/argumentative_essay_about_internet.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/arduino_vs_raspberry_pi_for_sensors.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/aroma_rice_cooker_slow_cooker_steamer_manual.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_off0000c1c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1C8 5320 bytes
SHA-256: d98f4b626fcce1454bf8334ad0ba047f1fae1ac169e475dcead4d0aaaaa61d15
font_01_sfnt_off0000d3f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F3 10060 bytes
SHA-256: 462f6b64b3003abf460e11017fd02318af784a4cc152dc0707a9a0311db77f22