Malicious PDF — malware analysis report

Static analysis result for SHA-256 e455e71c6f6cb4f5…

MALICIOUS

PDF

76.5 KB Created: 2021-01-19 14:56:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 31d0a32d18ce47ff53ca8da959316545 SHA-1: c8ad457c28d81fd3494c48eca839830f7a6ec384 SHA-256: e455e71c6f6cb4f57cf7d437212475d603001e06d3ddcbc5fe5fbf717b7f915e
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://trafftec.ru/123?utm_term=romantic+classical+music+for+weddings PDF link annotation
    • http://pukazabix.22web.org/b._el._ed_form_last_date_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/tovisegag/wLheQ4Z/gememamaziruzejo.pdfIn PDF document text
    • https://cdn.sqhk.co/xusovatovu/aif5bg4/mario_kart_tour_multiplayer_level_up.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/khhmgeI/math_formula_with_practice_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/salenasova/dibjeij/25389142396.pdfIn PDF document text
    • https://cdn.sqhk.co/wovegase/jjeRjd8/59733244041.pdfIn PDF document text
    • https://cdn.sqhk.co/ninivaxibab/jZEidjf/ice_hockey_skates_for_sale_gumtree.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duzebufulumaw.epizy.com/zebatopemidurosodedas.pdfIn PDF document text
    • http://ruxomipeb.epizy.com/15269890818.pdfIn PDF document text
    • http://wapudajikipidem.epizy.com/angular_7_admin_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/vunesigorofeluse.pdfIn PDF document text
    • http://tufuripisaren.epizy.com/garirasowesividesoti.pdfIn PDF document text
    • http://wetoxikilosawa.epizy.com/hangman_ppt_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/57058636604.pdfIn PDF document text
    • http://govatojajij.epizy.com/arizona_wildcats_football_uniforms_2018.pdfIn PDF document text
    • http://ziboporo.epizy.com/bhagavad_gita_full_in_english.pdfIn PDF document text
    • http://fogevodazeta.epizy.com/twisted_fate_aram_guide.pdfIn PDF document text
    • http://gebozobab.epizy.com/3835811443.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_off0000f043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF043 5440 bytes
SHA-256: 693e4f073ac41cf77c45cfef66f50891746810ec3cd8becc176137256a8aec04
font_01_sfnt_off000102c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102C0 9952 bytes
SHA-256: 554fc862e43c9dff173439e7cd93f5eddd1819c884ded553eaa8477e3d4b0f63