Malicious PDF — malware analysis report

Static analysis result for SHA-256 238464b4f671f250…

MALICIOUS

PDF

69.4 KB Created: 2021-02-13 17:40:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 120e73e1aca79d2c18f7622e41757cbf SHA-1: 1d3f984c302ac6d08bdb05b3b5fa0d037a9c88cf SHA-256: 238464b4f671f25060d6f84668260011b00a3a72208176aa46e939f8ac6b19a4
104 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
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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/wb?keyword=2010%20lippincott PDF link annotation
    • http://sudedelanefozuk.66ghz.com/nubudogosuxiwigo.pdfIn PDF document text
    • https://cdn.sqhk.co/lutadamafe/sHv1hjy/real_bout_fatal_fury_special_characters.pdfIn PDF document text
    • http://zitosobuzozuz.22web.org/dopuxulamoref.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383314/normal_5ff692a5a55a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375690/normal_5fcc80767ea5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491965/normal_60181e11609e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447251/normal_5fe238bf69287.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486751/normal_5ffe0f3f3b354.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469645/normal_5ffe7fbc63ce3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404124/normal_5fe6be7b6d9b6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487894/normal_5fdd99389588a.pdfIn PDF document text
    • https://maypoin.ru/wb?keyword=2010%20lippincott'%20s%20nursing%20drug%20guidePDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kefodek/16002535656.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/vugifenutakig.pdfIn PDF document text
    • http://dokedajonanumi.rf.gd/10180781351.pdfIn PDF document text
    • http://pidosowot.epizy.com/91398882648.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_off0000d0e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0E3 5296 bytes
SHA-256: 48956783a1fb892ef03ef4ab30a1543dff0d2fb23208f123596279f0879a63e0
font_01_sfnt_off0000e302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE302 11128 bytes
SHA-256: d15d2863a30e38d6bc0bec9618a27bd2ef7c1547581b664b0474fc04cc7555f1