Malicious PDF — malware analysis report

Static analysis result for SHA-256 05ebaee17503e5d8…

MALICIOUS

PDF

70.7 KB Created: 2021-03-01 00:56:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 013a738f8089a0fc73eca6ca5fd712d4 SHA-1: 9a0d04a82bac3189080ec7ab0f7a3b0d7283ee2e SHA-256: 05ebaee17503e5d8d44672cc589b17023c975edacef3bda1cc68ec0908f3c086
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gimoguvi.ru/wix?keyword=football+manager+18+apk+free+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4402948/normal_5fde9f17b9b55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476952/normal_6008c7e88cc12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374835/normal_5fcaa8396ee02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425491/normal_5fd2df58bc788.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420476/normal_602d0e79b11aa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487641/normal_5fdfa6d553621.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450418/normal_60350cae6c621.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449424/normal_5ffd7e6ae74cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382614/normal_5fcd3d028c0f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368506/normal_5fcf3c5286c13.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449984/normal_5ff7a9907aa7c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367960/normal_60017d8b2cf24.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471723/normal_5fc7289b4916b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365628/normal_5fe58f13a04e2.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/bajapovogam/psalm_23_niv_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/biorad_t100_thermal_cycler_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/free_reading_context_clues_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/volil.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_off0000d750.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD750 5680 bytes
SHA-256: 5c4aec6e7b1dd2b189237f1dfb85ec2d2fd106a70dbcbaa3bc39d41aab528d87
font_01_sfnt_off0000eaae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAE 10240 bytes
SHA-256: 7c240a7c0bc7b86d55127cf5371a26ad9555021dd9b1973a379d16eef1d01ef0