Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ba4974b327a4e02…

MALICIOUS

PDF

76.3 KB Created: 2021-02-27 14:39:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d0f53e1e9039bda93b0fe99bf6897eca SHA-1: 239d7acac4575dafbc853fb858786d3c5f691904 SHA-256: 1ba4974b327a4e02a9fc9c52f382d48105752cf2f6aba8d731724e28d157d495
126 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
  • 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/123?utm_term=best+cyber+security+courses+online+quora PDF link annotation
    • http://alkim.xyz/square_d_manual_transfer_switch_400_amp9rju3.pdfIn PDF document text
    • https://tojejalunegod.weebly.com/uploads/1/3/2/7/132710717/dotigobakurej_webusavunanal_dexulizadipivoz_nodujixazupo.pdfIn PDF document text
    • http://mpvideo.org/82934424914brtb.pdfIn PDF document text
    • http://lizoguxumugef.mywebcommunity.org/how_do_i_get_my_navy_service_records.pdfIn PDF document text
    • https://gazumewus.weebly.com/uploads/1/3/4/9/134901575/f37762.pdfIn PDF document text
    • https://popupobapovuzus.weebly.com/uploads/1/3/4/0/134012290/2452355.pdfIn PDF document text
    • https://zosafetudosejo.weebly.com/uploads/1/3/4/6/134670517/7819690.pdfIn PDF document text
    • http://taxevidel.medianewsonline.com/kenneth_cole_reaction_watch_turn_off_alarm.pdfIn PDF document text
    • http://bikelumonekodex.mygamesonline.org/norago.pdfIn PDF document text
    • http://afracheat9.xyz/pufezotulelolexobzloz3.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/wuwabobujasivor/kivaxakofijukubuv.pdfIn PDF document text
    • http://kapirexazi.onlinewebshop.net/kewepukujoxorekawe.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/aihw_breast_cancer_report.pdfIn PDF document text
    • http://faxiruvud.myartsonline.com/xokovixu.pdfIn PDF document text
    • http://wonetone.rf.gd/6692890349.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_off0000eba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA3 5212 bytes
SHA-256: eff47754b5ad7cd38721d2bee211dc8978569b0a518a6e5cd6e72259b143be23
font_01_sfnt_off0000fd78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD78 10912 bytes
SHA-256: 6979e06286deedf58b4bd6b994e038a49cfdcdb8b47cc02d9de7e57f29e028a7