Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a0048aee9864c54…

MALICIOUS

PDF

70.7 KB Created: 2021-02-20 07:02:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6366c150699dddd07c2cb8083846c36d SHA-1: 0851bd4f4815a1514ec59cdefa6c82af195feac8 SHA-256: 6a0048aee9864c548a904a34fc0fec9493153579b6b1727aa75df6d143cfed2e
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ap+human+geography+unit+3+migration+test PDF link annotation
    • http://7lessons.site/ikea_kritter_toddler_bed_sheetsxw6x2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374185/normal_602de95db484b.pdfIn PDF document text
    • http://info-pages.ru/free_resume_templates_for_ipad4oa80.pdfIn PDF document text
    • https://zorivaleguzovul.weebly.com/uploads/1/3/4/5/134596353/2723774.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415544/normal_600574854a413.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371003/normal_5ff801185550e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501042/normal_5fcd79c3b9ec3.pdfIn PDF document text
    • http://cupe1.ru/nimanamenawaseri8q5h4.pdfIn PDF document text
    • http://rm-swis-mine.com/91298212342j0f5j.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/vexeliku/55665462288.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/affiche_publicitaire_dfinition.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/ditovo.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_off0000d48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD48C 5456 bytes
SHA-256: 59612d3576a0d35640f3e25824fff86479612da67389e5ab0314e09d53e8b6ce
font_01_sfnt_off0000e6f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F9 11748 bytes
SHA-256: 7532a188b44203cfcd7cfc579a10799c201f4657604cf029884af2d858973882