Malicious PDF — malware analysis report

Static analysis result for SHA-256 700b9da87586f238…

MALICIOUS

PDF

72.9 KB Created: 2021-02-25 03:15:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 1ba2e55c523ec51874297f20e27a27fb SHA-1: a668263389cc6ccf2a0e42b025ef6659a38cd90f SHA-256: 700b9da87586f238c666b190ee55a809fb8fc7b3e1cde02627cd0478e39e5d98
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/award?keyword=padi+open+water+certification+dives PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4460709/normal_6009b538c6f9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446772/normal_602ae095cdccb.pdfIn PDF document text
    • http://fartook.online/tefal_pressure_cookers_for_saler3oll.pdfIn PDF document text
    • http://citimart.online/download_ultimate_motocross_4_mod_apk_android_1b3v85.pdfIn PDF document text
    • http://expressvpn.store/45388601222y0een.pdfIn PDF document text
    • https://cdn.sqhk.co/famuxina/sibihic/wood_shop_dust_collection_ideas.pdfIn PDF document text
    • http://item-get.top/52392372994zebx5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501503/normal_6012253a0ba05.pdfIn PDF document text
    • http://sberbank.services/bobaranevirujobojtct5k.pdfIn PDF document text
    • http://hookup668.site/85000558593d5zf5.pdfIn PDF document text
    • http://it50life.pro/kulinarik_trail_filmsf879h.pdfIn PDF document text
    • https://cdn.sqhk.co/suwapipejob/gjbAMii/68738180390.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379605/normal_6022d214799b4.pdfIn PDF document text
    • http://train-home.ru/mutijufthvv9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367289/normal_600ad7b766513.pdfIn PDF document text
    • https://cdn.sqhk.co/tofatuxurejo/oYqiahf/gmod_addons_download_no_steam.pdfIn PDF document text
    • http://bcpzonasegur4viabcp.com/intelligence_gathering_techniquess7deq.pdfIn PDF document text
    • http://steel-lipetsk.ru/math_test_for_grade_6i52i4.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_off0000dddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDB 5268 bytes
SHA-256: 9728da55daa3717e1a2c7059a9d54ed118cd8bb82ba3ce74de6cbf712c6188d1
font_01_sfnt_off0000eff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF5 10784 bytes
SHA-256: 3f11dd46666b16a0f11ce48ba350ae9e02aac76a9afdac411d5d5f4204a203c4