Malicious PDF — malware analysis report

Static analysis result for SHA-256 363479c5090f7e40…

MALICIOUS

PDF

66.0 KB Created: 2021-02-17 15:55:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2a3126cd14a0e3032b52cd96573a227b SHA-1: 9da1a3b5b12e3067905fa374813a618c0808674b SHA-256: 363479c5090f7e40938b6455600281f75ef2d6cd34fe6134f7b6ca510a376f8a
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://baarspo.ru/wix?keyword=acco+wright+hoist+manual PDF link annotation
    • https://xefimobabizigur.weebly.com/uploads/1/3/1/6/131637686/adc938.pdfIn PDF document text
    • https://zogumunatol.weebly.com/uploads/1/3/1/6/131636745/865547.pdfIn PDF document text
    • http://feedbacrnz.space/cloudformation_template_file_extension8x8m3.pdfIn PDF document text
    • http://ighelpcenter.xyz/twilight_graphic_novel_volume_2vd9oc.pdfIn PDF document text
    • https://fipufiradak.weebly.com/uploads/1/3/0/8/130813779/pubawemebolobo.pdfIn PDF document text
    • https://wenabavur.weebly.com/uploads/1/3/1/3/131379405/c80db.pdfIn PDF document text
    • http://lamovingcompany.com/bush_tv_dled32287hdcntdfvp_manual9az9i.pdfIn PDF document text
    • https://soxoxalumowaju.weebly.com/uploads/1/3/4/7/134768556/xuboripalawef.pdfIn PDF document text
    • https://nozipukox.weebly.com/uploads/1/3/6/0/136057246/1550045.pdfIn PDF document text
    • https://cdn.sqhk.co/baponakazu/igfU5gj/download_game_hero_rescue_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495994/normal_600ea64da657c.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/zuvovoxigumuz/critical_path_method.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/jowexasikotu.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_off0000c67a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC67A 5292 bytes
SHA-256: d55c8b415e06b8ed92916d68190de0e1f9597f6bf38bf1a5bb13d6d78a9dc620
font_01_sfnt_off0000d864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD864 10152 bytes
SHA-256: 3f8e57298a5a894eeb00deb7c9ac734b1fa44af7cd351bcadcb7dd40247475fe