Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb1c3ac8c612fdd…

MALICIOUS

PDF

73.1 KB Created: 2021-01-19 13:07:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 43a57b5edb01ad8e384f5c8c25a648ca SHA-1: d0b29fa68636ae2c29bb16f259bdcedb9eece354 SHA-256: 2eb1c3ac8c612fdd51a10a87c49539e70cb41f1360782e6bf2281ccb940ffa2d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/123?utm_term=wings+of+fire+rainwing+base PDF link annotation
    • https://cdn.sqhk.co/gumorefose/jfMBgfL/movistar_peru_celulares_iphone.pdfIn PDF document text
    • https://nokiziwevapof.weebly.com/uploads/1/3/4/5/134507241/dd065984a0e2e5.pdfIn PDF document text
    • https://kukanoli.weebly.com/uploads/1/3/4/6/134641169/vofubevolifuzas.pdfIn PDF document text
    • https://livekurot.weebly.com/uploads/1/3/4/4/134443702/zepuxubibo.pdfIn PDF document text
    • https://rirubonoji.weebly.com/uploads/1/3/4/5/134528367/71eb3d3c8e7.pdfIn PDF document text
    • https://nalusopiko.weebly.com/uploads/1/3/3/9/133997408/8692906.pdfIn PDF document text
    • https://cdn.sqhk.co/zupitefa/Tjd3sBf/mupoxududofoxegelaguz.pdfIn PDF document text
    • https://tipuzivi.weebly.com/uploads/1/3/0/9/130969377/wediw.pdfIn PDF document text
    • https://wadabugijiri.weebly.com/uploads/1/3/0/8/130873870/gebipubefovifov.pdfIn PDF document text
    • https://cdn.sqhk.co/pidagasew/Slcaghg/28035683072.pdfIn PDF document text
    • https://pajudeva.weebly.com/uploads/1/3/4/6/134657304/kofozeliwula_wulosixokixu_xikalona.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zufarelizija.epizy.com/41659033558.pdfIn PDF document text
    • http://tikokowekujuw.epizy.com/56289795266.pdfIn PDF document text
    • http://kelawezup.rf.gd/74696769060.pdfIn PDF document text
    • http://mekavebij.epizy.com/klb_chemistry_book_3_notes.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_off0000df5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5D 5148 bytes
SHA-256: a1df41bec97a2421a5b3fb540ed767afc5f9b8c2d1806c5f4ee6e247b32fbebe
font_01_sfnt_off0000f111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF111 11628 bytes
SHA-256: e30d2bf092bfa4042bf1c2a24c40f5a27c34c1b214a4dfdd77bf34b7b82a8f31