Malicious PDF — malware analysis report

Static analysis result for SHA-256 dddc658fba85e99d…

MALICIOUS

PDF

69.0 KB Created: 2021-02-19 23:49:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e26b4b8496276f9678a6662ee57831e5 SHA-1: ef8a549840b84a1c0adc20b4f7464264bc3d8b36 SHA-256: dddc658fba85e99d5bd5172f5b27741c504a0fe27c60a009ed6acfe4dc8c6528
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://jacksth.ru/aws?utm_term=is+a+jeep+grand+cherokee+expensive+to+maintain PDF link annotation
    • http://wunekixel.iblogger.org/internship_report_sample_slideshare.pdfIn PDF document text
    • http://xulenegutuwovi.iblogger.org/zizipoveliz.pdfIn PDF document text
    • https://fofagova.weebly.com/uploads/1/3/4/3/134313529/8151928.pdfIn PDF document text
    • https://faliroralomi.weebly.com/uploads/1/3/0/8/130874474/51903.pdfIn PDF document text
    • http://ipatovaalena.ru/wordpress_plugins_list_githubpzmrz.pdfIn PDF document text
    • https://cdn.sqhk.co/natefisaka/gjcgdja/secret_of_mana_remake_ps4_review.pdfIn PDF document text
    • http://vivuvulefova.iblogger.org/free_word_templates_for_cvs.pdfIn PDF document text
    • https://kidenido.weebly.com/uploads/1/3/1/6/131636891/nomibo-wozewim-tifojitol-kedububuv.pdfIn PDF document text
    • https://vejazejama.weebly.com/uploads/1/3/1/3/131381369/71a41.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/juwofuxufijup/matatu_playing_card.pdfIn PDF document text
    • http://paradubufaxeju.rf.gd/72185303621.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/1251124404.pdfIn PDF document text
    • http://robefopatobut.epizy.com/medical_certificate_format_form_3.pdfIn PDF document text
    • http://banumekopi.epizy.com/la_cygne_waterfowl_report.pdfIn PDF document text
    • http://nimobavaze.epizy.com/amapiano_mix_august_2019.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_off0000cf41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF41 5660 bytes
SHA-256: 19640517eb3a285058c390b24c29f6ab5df54f6377bb86785a8c068c51d7c256
font_01_sfnt_off0000e265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE265 10688 bytes
SHA-256: a1a91198e9331a0e8cdf487d0edc5e814e8d6c846294586ec8ad5c89486c5300