Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e1c1e033b62b6e9…

MALICIOUS

PDF

73.2 KB Created: 2021-02-16 03:29:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 74b2d02af502a4592b1d0eab57a472fe SHA-1: 464fb29530fba5da7f4d20685dc25240d356c6bb SHA-256: 9e1c1e033b62b6e9de3f782a82de1aa6478337185e89ae8f4a46f702e3c0dcd4
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://crophysi.ru/wix?keyword=return+man+5+crazy+games In PDF document text
    • http://rollernefrit.xyz/pozalabozesataluxitogo674zy.pdfIn PDF document text
    • http://mebelrostov.ru/aguas_de_marco_pianobxmzl.pdfIn PDF document text
    • http://mkr-olimp.info/71802961704wgzsn.pdfIn PDF document text
    • http://shtancircul.site/should_you_guess_on_the_sat_or_leave_blank0lrm3.pdfIn PDF document text
    • http://igonlinesupport.com/chennai_tourist_guidee84u3.pdfIn PDF document text
    • https://cdn.sqhk.co/nitunoda/mji0ieN/toolbox_murders_1978_full_movie_123movies.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485589/normal_5ff4f7684d637.pdfIn PDF document text
    • http://andyhongdigital.com/bidabobouup31.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/eOvhjtj/photo_music_video_maker_free_download_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/narulaloro/ic6fNgo/sculpture_artists_contemporary.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450419/normal_5ffcdede96dfc.pdfIn PDF document text
    • http://romeoplanet.club/zamibutawasepesiwazex9aznd.pdfIn PDF document text
    • http://whitecheat.xyz/njstar_chinese_word_processorz3eyb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490001/normal_5fcb677e34c08.pdfIn PDF document text
    • https://cdn.sqhk.co/vivijuzajus/bgeU9ij/57991389647.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://deravamosu.rf.gd/13692869277.pdfIn PDF document text
    • http://wokoziguroron.rf.gd/sugusuxozu.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_off0000e33f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE33F 5368 bytes
SHA-256: bef95fe0acf552a5f6e1663d2922c4cd9780ded797d676221f18724aec613701
font_01_sfnt_off0000f582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF582 10136 bytes
SHA-256: 725c1837d107804590dcd355e358bf16a3b93e7e5c409fd7dbb1985c566e5cd8