Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eced0bd4c6e48ed…

MALICIOUS

PDF

72.5 KB Created: 2021-02-20 13:06:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 641c27d42c1de2898d9f86bd6bdf032c SHA-1: 208fa404a2a61e380f5e7c430acb0f26fdf19434 SHA-256: 3eced0bd4c6e48ede8f5c5dfa84c1199111790612a399a39dfb00e8d20e0e142
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/strik?utm_term=how+much+do+babies+sleep+in+the+womb+at+12+weeks PDF link annotation
    • http://sputnews.com/crimson_peak_full_movie_in_tamil2c299.pdfIn PDF document text
    • https://jamiwimavebu.weebly.com/uploads/1/3/1/4/131453695/1985873.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489428/normal_60200b8ce1f29.pdfIn PDF document text
    • https://pafebexazare.weebly.com/uploads/1/3/1/1/131163914/376138.pdfIn PDF document text
    • https://xejigidusulup.weebly.com/uploads/1/3/4/7/134730122/3149871.pdfIn PDF document text
    • https://cdn.sqhk.co/gesokusa/quifqjf/personalised_wedding_cake_toppers_bride_and_groom.pdfIn PDF document text
    • http://vbruti.site/boss_dr-55_for_salek5x1f.pdfIn PDF document text
    • http://vknacruckalaikov123.xyz/621086545719xj9p.pdfIn PDF document text
    • https://vozabamoz.weebly.com/uploads/1/3/5/9/135959881/6124552.pdfIn PDF document text
    • https://cdn.sqhk.co/xutazazo/nhgU811/cat_bird_call.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378830/normal_5fd90dc8b7e91.pdfIn PDF document text
    • http://cyberghost.store/20293999558nqqak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476445/normal_5fcbf34ebc7c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466153/normal_5fe63dbde4f80.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409000/normal_5ff5aebe28a86.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/memexelu/gas_chromatography_exam_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/85324017444.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/83130987004.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/amazing_spider_man_2_bgm_free.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_off0000dce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE1 5656 bytes
SHA-256: 8f7051eef4b711360e83d6023774eaa126daa5110c71f1804c5d8527efe630a1
font_01_sfnt_off0000f010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF010 10168 bytes
SHA-256: 9ef755c4100be3e07aee9d2c5e2c5b014c586747f54fbeae2ef94e9733fccd85