Malicious PDF — malware analysis report

Static analysis result for SHA-256 e488959c77b01ec7…

MALICIOUS

PDF

64.9 KB Created: 2021-02-16 05:00:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b5e4f4863f89958bd2cd41fffaef3cec SHA-1: be94a72db994ae846b53d469919873f3c81dabd3 SHA-256: e488959c77b01ec7bc98b84d190cf820bf30a7b0c57164945ce2ab4a4e860d38
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://maypoin.ru/wb?keyword=tp%20link%20av500 PDF link annotation
    • http://teasmall.space/12009686711bhj4f.pdfIn PDF document text
    • https://cdn.sqhk.co/zogowefu/hgPjdje/saputadawix.pdfIn PDF document text
    • https://cdn.sqhk.co/wenewojufaj/zjbgeic/crowded_teeth_fix.pdfIn PDF document text
    • https://cdn.sqhk.co/zanaforare/hb3Bijc/battle_angel_1993_rotten_tomatoes.pdfIn PDF document text
    • https://cdn.sqhk.co/lolajelor/MTjiehi/20478455212.pdfIn PDF document text
    • https://cdn.sqhk.co/salasereki/X3ghcyl/hellofresh_trial_box_discount_code.pdfIn PDF document text
    • https://cdn.sqhk.co/xiwasazafu/iBhcghN/terra_nova_church_youtube.pdfIn PDF document text
    • http://esclub.info/age_of_empire_3_android_offline_apkjggj7.pdfIn PDF document text
    • http://testertumentum.space/31088438569t720v.pdfIn PDF document text
    • http://testertumentum.space/controle_chimie_5eme_les_melanges_aqueux65jqx.pdfIn PDF document text
    • https://cdn.sqhk.co/pasepizut/hfRbEid/zuxivigin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365599/normal_5feced59892ae.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gumofiwulova.epizy.com/wejajulapu.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/behavioural_interview_answers_customer_service.pdfIn PDF document text
    • http://pawubiba.epizy.com/55595370255.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_off0000c03e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC03E 4876 bytes
SHA-256: 0d814808123a344e3092f23917fbc72ca521b818476330b3cb9b0b5b835d2a65
font_01_sfnt_off0000d0f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F8 11240 bytes
SHA-256: 82c8e9caa822fed8cdcb65183e2dce8001fe9772f4465a5979759e50c41dea8b