Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c2ba783a8b73326…

MALICIOUS

PDF

77.9 KB Created: 2021-02-15 19:16:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fd94f2b3db505ff74a4e88218b344c02 SHA-1: 09289a8741a767407cbf3091be06a3b1e227429f SHA-256: 8c2ba783a8b7332615ca4290f4fd830443a03dc3605a3ab03e61dd6267f77c29
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://maypoin.ru/123?utm_term=motorcycle+diaries+movie+online+english+subtitles PDF link annotation
    • http://hightrade.club/subacromial_bursitis_exercises_kaiser4y862.pdfIn PDF document text
    • https://xolivura.weebly.com/uploads/1/3/5/9/135958321/puxedimutuko.pdfIn PDF document text
    • http://copyrightmediahelp.com/bioetica_definicincuhdu.pdfIn PDF document text
    • http://ompala.store/label_the_carpals_and_the_tarsals_answersp2nc0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462727/normal_5fcb657eb5778.pdfIn PDF document text
    • http://boost-shop.xyz/778800050264nif4.pdfIn PDF document text
    • http://help-lnstagramcopyrights-verify.com/86822419168p2v5f.pdfIn PDF document text
    • https://bufezemaz.weebly.com/uploads/1/3/4/7/134714495/daruje.pdfIn PDF document text
    • https://selilanabos.weebly.com/uploads/1/3/4/8/134875664/zevejotof.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vepilezora.epizy.com/hair_colour_change_app.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/leponefokoluzawugidosem.pdfIn PDF document text
    • http://nokefibazapowem.rf.gd/84959575063.pdfIn PDF document text
    • http://dibulazovila.rf.gd/daziguziviruwosed.pdfIn PDF document text
    • http://gisivem.epizy.com/btc_first_semester_books_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/95678795501.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_off0000f21b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF21B 5660 bytes
SHA-256: 601906c5e67bf204a6bc8550df02f8fdec8a1a79fba5ee443ab15c773c274e98
font_01_sfnt_off00010546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10546 11076 bytes
SHA-256: 800d317f2f6296713c37a0cc1bd10e0d1a22e9a2d9ba6b665d82114d20837d34