Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e5eef4cab7acf46…

MALICIOUS

PDF

76.5 KB Created: 2021-02-11 20:45:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4ab2d18426f1c6fdfec255b4d4d2a1f2 SHA-1: 6a73600efa2cd522ab7392ec137739c648704a3f SHA-256: 0e5eef4cab7acf46778b5a551f8afdd9584c1ff395776b2929f6e50ff5a4540e
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=heatran%20raid%20guide%20pokemon%20go%20hub In PDF document text
    • http://compte-cmbretagne.best/durgasoft_advanced_java_notesw3nkp.pdfIn PDF document text
    • https://lenexemumuvag.weebly.com/uploads/1/3/1/4/131438583/3576913.pdfIn PDF document text
    • https://wanevowak.weebly.com/uploads/1/3/4/4/134465130/8108964.pdfIn PDF document text
    • https://cdn.sqhk.co/rebamomidaw/iE8jQjs/hot_girl_skins_for_pixel_gun_3d.pdfIn PDF document text
    • http://replyua.site/polojekodufogafupupu16m7t.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvexudid/fmgfpdt/67248122784.pdfIn PDF document text
    • http://sqrab.top/tugumassucb.pdfIn PDF document text
    • http://bobr.space/33350732350ilczw.pdfIn PDF document text
    • https://cdn.sqhk.co/rosavuzezig/jhMhaYk/tripp_trapp_baby_cushion_soft_sprinkle.pdfIn PDF document text
    • https://cdn.sqhk.co/duwefetufe/fwigT8R/63762964215.pdfIn PDF document text
    • http://chambrehub.xyz/pabivitutiwikid393.pdfIn PDF document text
    • http://souve.me/fixasabiviloxojosatofoponj2c5.pdfIn PDF document text
    • http://bitsracing.net/rendering_in_pen_and_ink_free_downloadrjg2j.pdfIn PDF document text
    • https://jenajurowob.weebly.com/uploads/1/3/1/4/131408252/1803991.pdfIn PDF document text
    • http://edaruzal.xyz/free_organizational_chart_template_doc48b0x.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000eccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCB 5328 bytes
SHA-256: 0768df227c254dd1b4aed6d1886882c65a90a849e28db69bcdb8f81c6917f37f
font_01_sfnt_off0000fec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC0 11364 bytes
SHA-256: 1329fab6e4a2bbb109b863a28799cd20fcff1591ae2fe633473620b13701fd69