Malicious PDF — malware analysis report

Static analysis result for SHA-256 5436a0c68db21d9b…

MALICIOUS

PDF

72.9 KB Created: 2021-03-02 19:38:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: da2c345f1ee9861c0c315b83f9351f90 SHA-1: 0b36b3d1a7c85fcdd879a3d81bfe6b3bd65192cf SHA-256: 5436a0c68db21d9b45874ae27a53503185bfbfdcc1242fd3d4ffdc76e0216e0c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/wix?keyword=faded+glory+ponte+bootcut+pants+petite PDF link annotation
    • http://xuvaxujogilo.mygamesonline.org/what_is_bi_directional_load_test.pdfIn PDF document text
    • https://wusedutewaxugag.weebly.com/uploads/1/3/1/4/131437839/jurefazefubozitoj.pdfIn PDF document text
    • http://mon-fortuneo.best/lds_new_testament_institute_manual24mol.pdfIn PDF document text
    • https://raxorevowipafe.weebly.com/uploads/1/3/4/7/134765671/693dfb8cfc.pdfIn PDF document text
    • http://vigastlens.xyz/589297643782pg7a.pdfIn PDF document text
    • http://migerov.xyz/the_lighthouse_trailer_ita6mu4s.pdfIn PDF document text
    • https://safafiva.weebly.com/uploads/1/3/0/7/130739101/kafiju_jurujitodamobe_mawepe.pdfIn PDF document text
    • http://presentinsta.site/vocabulaire_progressif_du_franC3A7ais_des_affairesq3ev6.pdfIn PDF document text
    • https://gejowarog.weebly.com/uploads/1/3/2/7/132740172/1618248.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/kibavutibeved/merge_information_from_two_excel_cells.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/toyota_annual_financial_report_2018.pdfIn PDF document text
    • http://vunonam.atwebpages.com/vefoganomijuwawo.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/coercive_and_controlling_behaviour_guidelines.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_off0000dfad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFAD 5440 bytes
SHA-256: 9c7b1edd86e72d5b3416753a0d71983b53132324224fc6b07d25aef082d0f4d3
font_01_sfnt_off0000f23e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF23E 10704 bytes
SHA-256: 8e486a67668ca2109e8326b29636efde6211838a31791cb1a56f008cc008a028