Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b793948a754b3b1…

MALICIOUS

PDF

66.8 KB Created: 2021-02-19 15:29:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 26da53735ef2279e102f4e0286c0b722 SHA-1: 1ed63b4233b52a276ca5e0d89105e737f788cd48 SHA-256: 4b793948a754b3b195c37da606ec90a3896a182a3846baad56d261dee9b14260
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wix?keyword=gold%2527s+gym+cycle+trainer+300+ci+user+manual PDF link annotation
    • http://watertea.space/16785891047mejsz.pdfIn PDF document text
    • https://dapapakutuluj.weebly.com/uploads/1/3/1/3/131384169/e65d3dc37cb3.pdfIn PDF document text
    • http://perevod24-card2card.site/novumipooxvyl.pdfIn PDF document text
    • https://cdn.sqhk.co/lolumebitana/pjg4ie8/zed_build_s10.pdfIn PDF document text
    • http://zuluguvo.iblogger.org/photoshop_cc_editing_background.pdfIn PDF document text
    • http://pekokaxa.22web.org/31326723438.pdfIn PDF document text
    • https://cdn.sqhk.co/dibirolinu/UjdQwhe/93764426590.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/inRgj38/truth_or_dare_netflix_cast_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/japuwejede/haFLPie/secret_of_mana_2_rom_german.pdfIn PDF document text
    • http://helpforteam.com/79157979807darq3.pdfIn PDF document text
    • https://menuzuxa.weebly.com/uploads/1/3/1/0/131070619/4b36572767b1a.pdfIn PDF document text
    • https://giximelet.weebly.com/uploads/1/3/4/2/134234701/1094416.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/xgjidih/dovunivixavefovir.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/nawosineromigi/38753487885.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/cauldron_lincolnshire_sausages_nutritional_information.pdfIn PDF document text
    • http://lijazujarakowom.epizy.com/wowatitexokugir.pdfIn PDF document text
    • http://ratazudawi.epizy.com/bowenpally_sai_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/91975290721.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_off0000c775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC775 5732 bytes
SHA-256: 29d1e980cd73e07cdc9632609fabd73f55c43af4a7865aff3e011a3ea7ad9c83
font_01_sfnt_off0000daf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF1 10040 bytes
SHA-256: 80d66c1a34512ed68565627799f963def377ef6673bbe4124fdcbe42873d4fde

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