Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ec3c98c0c49e49…

MALICIOUS

PDF

73.1 KB Created: 2021-02-14 18:23:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a71dcb7d2cfb4a53ff1035278782c91f SHA-1: e87e4b8e679d96c547a9e164f94b11f25fa0743b SHA-256: 34ec3c98c0c49e49cc153e652c536c71614ebaad73af8d40648d3af56642d001
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://jacksth.ru/wb?keyword=tv%20guide%20sydney%20sbs PDF link annotation
    • http://ecoservice-vlad.ru/twist_song_wapkingxoazp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486036/normal_5fd1ff759b9e5.pdfIn PDF document text
    • http://gopuderolan.iblogger.org/12477200386.pdfIn PDF document text
    • https://jozurukezareta.weebly.com/uploads/1/3/4/7/134741488/7074027.pdfIn PDF document text
    • https://sobemifukoku.weebly.com/uploads/1/3/4/8/134887972/2640995.pdfIn PDF document text
    • https://lozibojugor.weebly.com/uploads/1/3/1/0/131069840/6248070.pdfIn PDF document text
    • http://copyright-central-media.com/clash_royale_hack_free_ios7nmag.pdfIn PDF document text
    • https://zukafetovozod.weebly.com/uploads/1/3/1/6/131636890/nugoviruwodavop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366400/normal_5febcf804b3f8.pdfIn PDF document text
    • http://gevazuvunurodum.22web.org/21697995836.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faloboxodutak.epizy.com/f_a_x_ka_full_form.pdfIn PDF document text
    • http://pidawuz.epizy.com/65125726982.pdfIn PDF document text
    • http://nitusubor.rf.gd/afcat_2019_1_question_paper.pdfIn PDF document text
    • http://rafodize.rf.gd/zuzefovumuresigidilemufe.pdfIn PDF document text
    • http://vowaxuf.rf.gd/drawing_line_graphs_worksheets_year_5.pdfIn PDF document text
    • http://rewerikipij.rf.gd/pegapariludiwowakeb.pdfIn PDF document text
    • http://xovajiw.rf.gd/kajedofiromixekavub.pdfIn PDF document text
    • http://tofarogupa.rf.gd/jajojuliwajamaweterin.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_off0000e0d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D0 4908 bytes
SHA-256: 72a7945ddf9c367cdd259f4e206fc9adedf7fdfe2c65c8c3a4f1fc9b0e109405
font_01_sfnt_off0000f1a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A9 11172 bytes
SHA-256: cc5028f04ba1f7aab453ed28fd43ecee0364a3a17a0d1dcce432bbc94d91c60f