Malicious PDF — malware analysis report

Static analysis result for SHA-256 e50c197bdd04962e…

MALICIOUS

PDF

71.3 KB Created: 2021-02-20 03:29:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 569108dd87300bf1da56a01a8a6a5a4a SHA-1: 23d3aa07a324d2d472b40da74734b30c2e0e59a5 SHA-256: e50c197bdd04962e05cce6fe890cdc673d76791954dfecfbf3d9fdaed43d67b0
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=nissan+quest+repair+manual In PDF document text
    • https://cdn.sqhk.co/denepepunuja/ehdhigD/jake_gyllenhaal_bubble_boy_mysterio.pdfIn PDF document text
    • http://fishland.store/989991056786rjha.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393348/normal_5ff0336a6904e.pdfIn PDF document text
    • http://8gusevshop.space/how_to_draw_christmas_stuff_step_by_step_easyfp1h8.pdfIn PDF document text
    • https://cdn.sqhk.co/kawiwitifa/hibtICS/xodupokinopotabazavoxupam.pdfIn PDF document text
    • http://teksol.xyz/niloruzewepoxewi4fk69.pdfIn PDF document text
    • http://particulier-societegenerale.xyz/how_to_assemble_a_wahl_clipperhjqi7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446030/normal_5ffd828b6e600.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465133/normal_60304379cac77.pdfIn PDF document text
    • http://trellos.fun/pre-_ap_chemistry_dimensional_analysis_worksheetiy4q8.pdfIn PDF document text
    • http://fepotarugagi.22web.org/kusejopiba.pdfIn PDF document text
    • http://fakts.design/21194694974ygbb7.pdfIn PDF document text
    • http://mimasajikataza.iblogger.org/mofuzi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415950/normal_60296f3db24fc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463263/normal_5fdf985d6f2d9.pdfIn PDF document text
    • http://mowewuwopirot.iblogger.org/atlas_game_fishing_guide.pdfIn PDF document text
    • http://dresdenpharma.ru/siwaramolc6tps.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/kulinisokakewi/johnson_electric_holdings_limited_annual_report_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/22699228832.pdfIn PDF document text
    • http://veduredetud.epizy.com/r_b_dj_mixtape.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/tepevibukaratosusajomutir.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/cal_king_size_sheets.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_off0000dced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCED 5060 bytes
SHA-256: f1d418444f237c4fb7e2e1a12c293c007e729d573544b1985ee0ec4206c7ee1e
font_01_sfnt_off0000ee12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE12 9972 bytes
SHA-256: 401dd423e5d23b35a491ae5e5d5f5c6c314c106271954eba0a79e23f842245e1

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