Malicious PDF — malware analysis report

Static analysis result for SHA-256 694eb734069eaec5…

MALICIOUS

PDF

69.0 KB Created: 2021-01-28 17:42:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c2f5e547eaf665d66095c93cf19dba97 SHA-1: 0d67c6868b4cf2204d628c62d966f589680e7772 SHA-256: 694eb734069eaec5455c6ed279a000c0158163ee6c14dcbbad2aef71d4f80624
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=the%20last%20of%20us%20live%20wallpaper%20android In PDF document text
    • https://cdn.sqhk.co/jenojigise/dXigiib/72783115083.pdfIn PDF document text
    • http://pet-guru.shop/23250582207u1ow6.pdfIn PDF document text
    • http://datingsexchat.site/dragon_ball_devolution_latest_version8zqx8.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwufupi/gjSihN1/widoxe.pdfIn PDF document text
    • http://bisipatelaloguj.66ghz.com/dus_bahane_remix_song_pagalworld.pdfIn PDF document text
    • http://50offshop.info/lanofinadapasozimarulesbakjj.pdfIn PDF document text
    • http://rirenanevigi.22web.org/bootstrap_4_login_page_template_free.pdfIn PDF document text
    • http://universityru.fun/46064446982f9pwe.pdfIn PDF document text
    • http://puwuditufu.22web.org/19188300144.pdfIn PDF document text
    • https://cdn.sqhk.co/kerutadit/ghzZ3Xi/color_palette_names.pdfIn PDF document text
    • http://kind-insta.site/40484207796r2509.pdfIn PDF document text
    • https://pixipemojawipe.weebly.com/uploads/1/3/4/4/134459682/5559826.pdfIn PDF document text
    • http://olymp-trade.top/40203327165ydzjp.pdfIn PDF document text
    • https://zurukonovode.weebly.com/uploads/1/3/1/3/131379219/dafowotelukuf_nivowesuzufu.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/novipaliwid/jiwizoxisikokawud.pdfIn PDF document text
    • http://niribulikebi.rf.gd/40999991627.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/tivonipofiwafopatamozo.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/kedoki.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_off0000d0d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D8 5232 bytes
SHA-256: 78bb39b9188b444a7dc29961e85d01d5f3678b6536806f283d88ff6faf17d0b9
font_01_sfnt_off0000e2b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B4 10524 bytes
SHA-256: 13d9f988c5fcf32b60de87f63a13fa8f8a6b109a27bcbfb634302cdfe2a6646b