Malicious PDF — malware analysis report

Static analysis result for SHA-256 63ed75f9992621f1…

MALICIOUS

PDF

74.3 KB Created: 2021-03-03 21:46:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f0a29a535f6bcba00ab1229a972b78f5 SHA-1: 50dc40219e5ee09753ebeb9e97a4def296fabba0 SHA-256: 63ed75f9992621f1a94eace5fd0312eb7836a5947082d8a5dfe7573396fd8aad
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://dugedepap.ru/award?keyword=can+cooked+pasta+be+frozen+and+reheated PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476420/normal_6008f1113bcab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369304/normal_60361ec72dda9.pdfIn PDF document text
    • http://dle-tpl.site/older_download_mp3nnyh3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496151/normal_60254c45d3878.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412775/normal_5ff1456fe0913.pdfIn PDF document text
    • https://cdn.sqhk.co/legusovej/hik0Pid/nufebebukudajavibufep.pdfIn PDF document text
    • http://vclean-sale.shop/accu-chek_compact_plus_battery_replacementt7ck9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469630/normal_601f1bd229e0b.pdfIn PDF document text
    • http://wixotuvotinunu.iblogger.org/game_dev_story_apk_aptoide.pdfIn PDF document text
    • http://byt-upak.ru/spanish_lute_sheet_musicxzes4.pdfIn PDF document text
    • http://dezlice.ru/71369382224nh235.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496811/normal_5fdffc007af24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500887/normal_602df57f5b090.pdfIn PDF document text
    • https://cdn.sqhk.co/lesasafo/ejbwdjj/blue_apron_stocktwits.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417212/normal_60170802979f4.pdfIn PDF document text
    • http://vozuzutiwajuzip.getenjoyment.net/charlie_munger_net_worth_forbes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duwimufowewis.epizy.com/1490923084.pdfIn PDF document text
    • http://lajexexetawibo.rf.gd/59351268432.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_off0000e5f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F0 5372 bytes
SHA-256: 7375b9b1d299f76e53e2f33983b3b1a043b458f6e7ea07e81d40ebcba340826f
font_01_sfnt_off0000f82d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF82D 10476 bytes
SHA-256: 0f4f88f65f46adf7a1025ea0c489333ed3f99685a7980870b38c15ff6c936b30