Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b472a804fb44ea…

MALICIOUS

PDF

59.5 KB Created: 2021-02-15 05:11:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 70ae942ee7afb38e1322a72197142119 SHA-1: 2b00c5eb7985147558018726ab182ccc70d36224 SHA-256: 08b472a804fb44eab152c6927d139fe2285fb389139ddd3136afc925f6ddec62
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://jottigo.ru/123?utm_term=christ+the+king+denver+facebook PDF link annotation
    • https://titapogesasoja.weebly.com/uploads/1/3/1/3/131380181/c86f7855ed7736.pdfIn PDF document text
    • http://boomerangoo.site/leap_study_guide_peanutm714p.pdfIn PDF document text
    • https://ziluxokoker.weebly.com/uploads/1/3/4/3/134392919/cf65500045da1b.pdfIn PDF document text
    • http://feziweninepiv.iblogger.org/46930622133.pdfIn PDF document text
    • http://tisorojeta.iblogger.org/properties_of_2d_shapes_worksheet_year_2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393790/normal_5fdede705d8c1.pdfIn PDF document text
    • http://helplnstagramcontact6088758.com/584681804557is9w.pdfIn PDF document text
    • https://zajosozuxisofe.weebly.com/uploads/1/3/1/4/131407459/4347798.pdfIn PDF document text
    • http://pubgmobiie.com/psp_iso_cso20e2n.pdfIn PDF document text
    • http://kino-vezde.ru/swing_trading_options_coursetfva0.pdfIn PDF document text
    • http://securityofusersdevicesonline.site/aqa_gcse_biology_book_answersygzyt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371524/normal_5ff660753654b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408186/normal_5ffe78ece39e9.pdfIn PDF document text
    • http://ita-bio.space/fitting_workshop_report_procedureji8da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369914/normal_601d71db013f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451762/normal_5fdc6b5e15f2c.pdfIn PDF document text
    • http://skameyki.club/bosupoqsldu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dofoxevepijuzox.epizy.com/sogozufezekuwemusigot.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_off0000af85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF85 5420 bytes
SHA-256: 1273344f824ff529fb922b03bae80fca045d29d18874851187e19dabb36132b3
font_01_sfnt_off0000c1f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1F0 9376 bytes
SHA-256: 509ba112fc6c7d000d00f8e78f1b8297e8ed3225bec788c64c27bc4e43ca492e