Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f40a7b2949ed2b3…

MALICIOUS

PDF

74.4 KB Created: 2021-02-24 20:01:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 9f9040d7462653331040393e40707070 SHA-1: c6e4e9e6e6272668f813c8fb3b29ac328df408d0 SHA-256: 3f40a7b2949ed2b3eac201ab9c78808013659059b01d1340f9952363ba1ae787
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • 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://bologen.ru/aws?utm_term=why+is+my+check+engine+light+on+with+no+codes PDF link annotation
    • http://wide-do.top/zorivexozubugorexuwilia3z83.pdfIn PDF document text
    • http://kitafoged.medianewsonline.com/wizukus.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/ropiz_soneleta.pdfIn PDF document text
    • https://cdn.sqhk.co/tisojubew/giijjcd/43070528.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412996/normal_6006b9f221e3a.pdfIn PDF document text
    • http://d-youtube.com/vintage_betty_crocker_picture_cookbook5hus2.pdfIn PDF document text
    • https://tabetigilazewa.weebly.com/uploads/1/3/5/3/135392987/0419136a836288.pdfIn PDF document text
    • https://cdn.sqhk.co/dulinifijal/jhorEid/marshall_american_football_movie.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403543/normal_5ff9637281a46.pdfIn PDF document text
    • https://jowavuzawevubab.weebly.com/uploads/1/3/2/3/132303017/1f5c1d07e3.pdfIn PDF document text
    • https://cdn.sqhk.co/mujekesire/aogdhaa/netflix_movie_download_link.pdfIn PDF document text
    • https://dezitatukuti.weebly.com/uploads/1/3/5/3/135389988/4714847.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375209/normal_5ffa3d7499dfa.pdfIn PDF document text
    • http://copyrighthelpcentral.com/renajavawolofegaruvryu18.pdfIn PDF document text
    • http://theboldpantsproject.com/77654737883jig25.pdfIn PDF document text
    • http://greenbike.shop/93555705977qlnrq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365655/normal_6024faafe4086.pdfIn PDF document text
    • https://cdn.sqhk.co/moromasi/D9jKhjj/blood_pressure_chart_per_age_group.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e68c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE68C 5320 bytes
SHA-256: 0e88111bc631ae2abedf2a7ec5630e8a87148aff1a2a1ce1daf534c86600302e
font_01_sfnt_off0000f8a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A2 10356 bytes
SHA-256: 5f33bc092d32e71b5beb9f41ba5762962a3ab433a15be00b322f77189509d74c