Malicious PDF — malware analysis report

Static analysis result for SHA-256 5556536f816070e6…

MALICIOUS

PDF

68.7 KB Created: 2021-02-23 22:38:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2524ecd944738f4295e854ffe3fad685 SHA-1: 2294b9a6f96a53d39aa9d3de2ac4e81e487d5fee SHA-256: 5556536f816070e6b8fd47a422c00727751832df64afb11a3bc345f55efb3dd0
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wix?keyword=john+deere+la110+owners+manual+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369904/normal_5fc82893ba218.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412183/normal_5fed434c29f43.pdfIn PDF document text
    • https://cdn.sqhk.co/pibutuvopedu/mM98igR/zalowekuwigavapi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490272/normal_60309c1944aaa.pdfIn PDF document text
    • https://cdn.sqhk.co/pabilere/hhlNZqP/daily_jumble_classic.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408997/normal_60127fb276c20.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379371/normal_5ff2bc1c21d1c.pdfIn PDF document text
    • https://cdn.sqhk.co/jokalirubore/Mgeibl6/81522900770.pdfIn PDF document text
    • http://neduxafeferik.iblogger.org/quickbooks_journal_entries_report.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/eji8Jic/ranunutatafetumuguseri.pdfIn PDF document text
    • https://cdn.sqhk.co/tojofelekob/S1djgX9/21273154706.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388165/normal_60110e9d51ae6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408596/normal_5ff687ae64a9d.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/jiwisigetizoxif/10555874469.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/billboard_music_awards_performances_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/kgf_caller_tune_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/jupudizadid/kemevizeramewow.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_off0000d125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD125 5340 bytes
SHA-256: 31e022bf2fc39ff2fce49be11b09234e00b2592df7062fcb9030b863b3690e55
font_01_sfnt_off0000e330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE330 10052 bytes
SHA-256: b9bbf642db9a16267c6351075239603eceb30e219db2a9f78d0e8fd5d89ee37e