Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb895365193f0ced…

MALICIOUS

PDF

68.2 KB Created: 2021-02-26 16:07:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a9f59c6652535e12b9b42560ba8a205a SHA-1: 648930413a9b704746a162219f170a786e32fbe8 SHA-256: cb895365193f0ced5716d0366b50cf98056a7c50e0eae7e986ec4cce68b04107
126 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
  • 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://lozipotod.ru/award?keyword=matthew+hussey+he+never+texts+first PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366676/normal_5fc934fd0e1c5.pdfIn PDF document text
    • http://ravigimojamel.mypressonline.com/rca_5_disc_cd_player_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/moturalogupe/gONUo5Q/zadafolakiti.pdfIn PDF document text
    • http://xamoxipuwizutux.scienceontheweb.net/7060010808.pdfIn PDF document text
    • https://cdn.sqhk.co/sowodopevew/TfigVhi/birthday_cake_pics_with_name_sonia.pdfIn PDF document text
    • https://cdn.sqhk.co/noviraxat/FbKvhfE/88359868338.pdfIn PDF document text
    • http://pogawubujogeje.mypressonline.com/19584454085.pdfIn PDF document text
    • http://worameruvejaka.mywebcommunity.org/white_rodgers_1e78-144_reset.pdfIn PDF document text
    • http://buwovavozu.getenjoyment.net/52253811673.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381964/normal_5febcd03cd9cb.pdfIn PDF document text
    • https://cdn.sqhk.co/juwafajem/ihihaQf/tablet_messenger_download_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xibumediw/jaFgiid/house_painters_tucson.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/nawosineromigi/lekidefugalaxabaxaj.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_off0000cf3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF3E 5148 bytes
SHA-256: 1a3cb92a7dc6add5495da716ef1470fd6177befd49a90cfcab35a2e48f27fff5
font_01_sfnt_off0000e0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E8 10328 bytes
SHA-256: aa136170127a49c6bf36bd275474183ff8b9d49c61126822e5ddcfa82c8c8e32