Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9559b88a1bf0074…

MALICIOUS

PDF

69.8 KB Created: 2021-03-05 21:40:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 64b7bef837a27d5f02603dcc00175b24 SHA-1: a2d24dde31aca8201bf42005afdee1a1a1413b79 SHA-256: c9559b88a1bf00742920cd71801189058b730a87c9733dfcea74ade9bb52d5d0
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://maypoin.ru/wix?keyword=stars+bingo+fort+wayne PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450040/normal_603e8206b9e47.pdfIn PDF document text
    • https://sefuzogesosemo.weebly.com/uploads/1/3/4/5/134579576/3677190.pdfIn PDF document text
    • https://cdn.sqhk.co/lewiwifo/qiigejd/chicken_noodles_cross_the_road_game.pdfIn PDF document text
    • https://kagejiwuj.weebly.com/uploads/1/3/4/0/134095923/wimiwimojezexejo.pdfIn PDF document text
    • https://bezowaki.weebly.com/uploads/1/3/4/6/134611163/todilag.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459337/normal_5ff4985e8aa42.pdfIn PDF document text
    • https://cdn.sqhk.co/namulofilox/jc3Ghd5/kipaxataxamojezis.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393779/normal_5ff71c70c3e5f.pdfIn PDF document text
    • https://jazujuwomukoti.weebly.com/uploads/1/3/4/6/134684961/4574725baa10.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392647/normal_5fe427c90732c.pdfIn PDF document text
    • https://cdn.sqhk.co/fapewakuw/bGQZjal/double_gun_holster_thigh.pdfIn PDF document text
    • https://tidatulo.weebly.com/uploads/1/3/2/8/132815220/4853247.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384318/normal_5fcc8ad7db814.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450631/normal_60235a90ed988.pdfIn PDF document text
    • https://cdn.sqhk.co/fipexuwebo/HjdjjYN/muwefiro.pdfIn PDF document text
    • https://weduparazibad.weebly.com/uploads/1/3/4/7/134710999/9270940.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487916/normal_603bd97ba83e4.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/kotodur/wotuzufikagomunixiw.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/certificates_of_completion_free_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/titef.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_off0000d525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD525 5340 bytes
SHA-256: 0872453e84c16da7c78460ff893830e36e280d670b4ea6a084b1247394b82c25
font_01_sfnt_off0000e778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE778 10184 bytes
SHA-256: 7129b3550ce7592fc5e14f3e3ada2d3ba0577e895cab8c408e634c6787566527

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