Malicious PDF — malware analysis report

Static analysis result for SHA-256 e766491f7c78f3b6…

MALICIOUS

PDF

64.0 KB Created: 2021-02-19 14:47:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 91589bc9eef2c0dd9e021462c2f12b09 SHA-1: 2f50b418300f1a4f4bfafb7c17eb548475a5b6b4 SHA-256: e766491f7c78f3b6318e0bf227e84acf59a45d7c77bdc32ca130541ddc8607f6
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=video+making+jobs+near+me PDF link annotation
    • https://vawalebadafi.weebly.com/uploads/1/3/4/6/134660315/b383d71e2afa.pdfIn PDF document text
    • http://italiahot.fun/the_television_history_bookiv6w7.pdfIn PDF document text
    • http://creditscorecard.info/tujasusupenu644bh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382972/normal_5fc6900099595.pdfIn PDF document text
    • http://puzigodemabotod.iblogger.org/app_store_review_guidelines_apple_developer.pdfIn PDF document text
    • https://pasironukid.weebly.com/uploads/1/3/0/8/130814081/fujaf.pdfIn PDF document text
    • http://vknart.xyz/mesovakevedufunomodivojhfpc1.pdfIn PDF document text
    • https://rafunipigadim.weebly.com/uploads/1/3/1/3/131380466/7002376.pdfIn PDF document text
    • https://bonesinidojesu.weebly.com/uploads/1/3/4/5/134591006/d7a352772076308.pdfIn PDF document text
    • http://ehaberdevlet.com/basilea_1_2_y_3h0f7g.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/xIwRgj2/what_color_tube_for_fasting_lipid_panel.pdfIn PDF document text
    • https://cdn.sqhk.co/gidulikegel/gcihjek/70412199808.pdfIn PDF document text
    • https://webegerux.weebly.com/uploads/1/3/4/7/134759049/1779104.pdfIn PDF document text
    • http://upsbox.ru/timestamp_format_oracle_12cn4q6i.pdfIn PDF document text
    • http://itverys.space/cabala_do_dinheiro_gratislw8a3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wubiwasomiduxi.epizy.com/49022666362.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_off0000befe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEFE 5356 bytes
SHA-256: 588c7aed32aceebec04d7f0e32d4108ad45b73b3dd551e95d95af1fc0080fece
font_01_sfnt_off0000d126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD126 10068 bytes
SHA-256: 04ec6930bdabd14168fa1ee1a1e454673709142afd7fa2a7b3ce605bfdfd6dfe