Malicious PDF — malware analysis report

Static analysis result for SHA-256 e28e5b4920917d22…

MALICIOUS

PDF

67.1 KB Created: 2021-02-25 13:26:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 841003bad59018cf889aef11dfb0e86e SHA-1: d760fa021eeff672c8df74cf85ebc21e97b891c7 SHA-256: e28e5b4920917d22f304bce462e599900edace059cd5d2bd02bc652a84e17fd1
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://seumenha.ru/wix?keyword=mopar+touch+up+paint+pw7 PDF link annotation
    • http://fazejajogavu.medianewsonline.com/is_the_equity_market_open_on_columbus_day.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/zokifemevukinironamob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497687/normal_600d612fd64da.pdfIn PDF document text
    • http://nakekizedexu.getenjoyment.net/47439892081.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370269/normal_601d8df7e97f1.pdfIn PDF document text
    • https://cdn.sqhk.co/luxixumogez/TgddfB9/tepeve.pdfIn PDF document text
    • http://leninuludobodu.mygamesonline.org/63316677998.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485448/normal_5fe5ef9565a67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366028/normal_60306289f1715.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/86342811411.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/54406113166.pdfIn PDF document text
    • http://lenadupubop.rf.gd/south_african_dyslipidemia_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/american_english_file_test.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/92627724579.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_off0000cb41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB41 4988 bytes
SHA-256: 1f076a1232be3a4524b6d9e91c8e83fdd4c3c102888365a7e5b6eb623ecf4773
font_01_sfnt_off0000dc5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC5D 10372 bytes
SHA-256: 26eea64ef40f0027067b6668b8809467aa2e46318cfe9f321060f5207e163d5b