Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d920bbd4464bfc8…

MALICIOUS

PDF

69.9 KB Created: 2021-03-03 17:40:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: aa72fc7fe6b78b396c3e9cffcb090a62 SHA-1: 3dea663d7c180362492220b244554d6e9320060b SHA-256: 0d920bbd4464bfc83bdf74beda105b4e9c213f5a3e19b60fc9110038a3ad59ae
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://kuzutuzo.ru/wix?keyword=sas+enterprise+guide+6.1+tutorial PDF link annotation
    • http://belldiscount.ru/kapinutikenukarumesalaqch9d.pdfIn PDF document text
    • http://nutristrike-shop.ru/coliforms_in_raw_milkv3n4l.pdfIn PDF document text
    • http://wisecredit.info/tozevabebavifogopofurileg9rwxh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489713/normal_5ff273e3b589e.pdfIn PDF document text
    • http://jirajoligo.22web.org/xinesozidilobafufabebuzig.pdfIn PDF document text
    • http://instapriz365.online/lds_nursery_manual_lesson_17jp1zl.pdfIn PDF document text
    • http://soldatskaya6.ru/ielts_speaking_sample_answers_band_9voaeg.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tetaduzebeturap.rf.gd/razesopupidumuzati.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/38280824707.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/besame_mucho_music_sheet_guitar.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/fezebutufif.pdfIn PDF document text
    • http://lopumupukerodu.epizy.com/ielts_speaking_topics_with_answers_general.pdfIn PDF document text
    • http://duzesonugineku.rf.gd/reduce_smaller_size.pdfIn PDF document text
    • http://bimumebuzof.epizy.com/update_app_android_java.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_off0000d3b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B9 5468 bytes
SHA-256: 3ea290435d5f794da663001f7e4f338826b24482a372aea030224e65a42b0ba0
font_01_sfnt_off0000e665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE665 10760 bytes
SHA-256: 9178c587425cb55415e90a0a5192671704acd88828c3056c9f65d911675afb65