Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d1a783c54bdc3b…

MALICIOUS

PDF

70.7 KB Created: 2021-02-20 07:31:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a28f3fd560f8a658026540231e23e23b SHA-1: 096b0e6d967c4cecb6476194000b42efe0d9c113 SHA-256: d4d1a783c54bdc3ba94151e6136159ec7f8dbd79942fa5f206b40ab73e221c32
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://jottigo.ru/wix?keyword=lost+girl+comic+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4409395/normal_60014f2282028.pdfIn PDF document text
    • https://cdn.sqhk.co/fodibaniwe/dhgesic/32070353437.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465543/normal_6012dc58673ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479902/normal_5fed01e5c0d6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448331/normal_6027c37083be8.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/If6jhgg/63171492268.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481852/normal_601f3a393c244.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459774/normal_601b5f293f892.pdfIn PDF document text
    • https://cdn.sqhk.co/kipafipigifi/gchgYGB/cooking_fever_free_gems_casino.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414852/normal_601ab08b05c93.pdfIn PDF document text
    • https://cdn.sqhk.co/wamitavixitu/6ibK7qz/26331399308.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481993/normal_5ffcf8376ed2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448539/normal_602908173f040.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xejefexevopu.epizy.com/vevosidurejapuxakajopasi.pdfIn PDF document text
    • http://mirepili.epizy.com/animal_jam_play_wild_latest_version.pdfIn PDF document text
    • http://nalakakowim.epizy.com/class_9th_chemistry_ncert_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/wujujobafegozumu.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/52331751508.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_off0000dbaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAA 5204 bytes
SHA-256: 58f0753b0a66f04939f4f0f25c372b9255b334c3657ec8310515bfdf0c77106a
font_01_sfnt_off0000ed55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED55 9608 bytes
SHA-256: 6b4f5d3d8007f2c1c40b4f50e355fa4a0111b780d759a448e2e7a1bb3f43ea8f