Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6b32576b7eeaa2d…

MALICIOUS

PDF

72.4 KB Created: 2021-02-25 12:52:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0227580846fb31908839bcf2df07fa3b SHA-1: d04855e6133596dad35084ad0b189fd32be62f18 SHA-256: d6b32576b7eeaa2d4539f2212e1474b5517621b011f87ab89330de6f9ba48675
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://seumenha.ru/award?keyword=what+is+the+purpose+of+instructional+design+models PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403556/normal_5fd2cf61cca87.pdfIn PDF document text
    • http://bridgecommerce.com/sloppy_birdo03xx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368958/normal_5fdecd234aa9b.pdfIn PDF document text
    • http://dikebar.22web.org/watox.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461495/normal_5fceb92fc4477.pdfIn PDF document text
    • http://sethel.xyz/hr54-200_vs_hr54-500waukk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414849/normal_5fd2e69725e95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414488/normal_5fd92d812b809.pdfIn PDF document text
    • https://cdn.sqhk.co/zisujidixa/ahfq1gd/58373645245.pdfIn PDF document text
    • http://pocki.top/luxozenaunfv7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4529149/normal_601c6b6c814e0.pdfIn PDF document text
    • http://ita-fitness.fun/5920158154872rcn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503525/normal_5ffa407c4e715.pdfIn PDF document text
    • http://zasaluto.iblogger.org/carmen_lana_del_rey_sheet_music.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fekamenuzexogam.epizy.com/89538733491.pdfIn PDF document text
    • http://lodaxiku.rf.gd/allah_waariyan_song_free.pdfIn PDF document text
    • http://tukudapig.epizy.com/21327594273.pdfIn PDF document text
    • http://pigozezidum.rf.gd/68051780841.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_off0000de62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE62 5580 bytes
SHA-256: fcf3b822de2f31e00c3a9c54e9c406691919928a936c9d2fc9de99173d3935ca
font_01_sfnt_off0000f147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF147 10196 bytes
SHA-256: d65d707903178f362c46751a42567f6bfabdaab6ad6db806743ffeea3895f432