Malicious PDF — malware analysis report

Static analysis result for SHA-256 2174c04d7259bfe7…

MALICIOUS

PDF

72.3 KB Created: 2021-02-17 01:01:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5b4386f2f9d22d7ca9f0b514d421bb3b SHA-1: 3a333313a3ff1f7cf08d40df33adb80cd13695df SHA-256: 2174c04d7259bfe70bdc98f084c3b2983a7657d105efac7ca741336f59ad9577
186 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 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://druttle.ru/wix?keyword=google+sites+tutorial+for+teachers+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4456728/normal_601a1e915551f.pdfIn PDF document text
    • https://cdn.sqhk.co/goxobuve/hcjhhfZ/zavovexaxa.pdfIn PDF document text
    • https://cdn.sqhk.co/furafurume/IhdiiNi/followership_and_servant_leadership_similarities.pdfIn PDF document text
    • https://tobedetileva.weebly.com/uploads/1/3/5/3/135337372/4118869.pdfIn PDF document text
    • https://vibufimibe.weebly.com/uploads/1/3/0/7/130738819/7245017.pdfIn PDF document text
    • https://sejerujezoxovod.weebly.com/uploads/1/3/1/3/131398555/xokobawibi.pdfIn PDF document text
    • https://cdn.sqhk.co/xedogigiloli/hajc4hf/instagram_fonts_bold_download.pdfIn PDF document text
    • https://jawifeguviweti.weebly.com/uploads/1/3/2/3/132302916/vibimepabifo.pdfIn PDF document text
    • http://balifruit.com/narcos_cartel_wars_hack_gold6fbnb.pdfIn PDF document text
    • https://fepexugoroba.weebly.com/uploads/1/3/4/4/134469665/womaxam-sozop-vadedatixage-robeminajugexu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427809/normal_60113bbfee569.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/jolituzoji/97760151290.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/devexpress_report_and_dashboard_server_crack.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_off0000dd7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7F 5448 bytes
SHA-256: 2501cd2195badbcb2f0a506cc36edaafbaff83c46869d6a7fb0f2495bd0b9e10
font_01_sfnt_off0000f009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF009 10568 bytes
SHA-256: 436d14575960288b9f2e15847d386ff5b6cec7d0c7add0f7434010e1283b4754