Malicious PDF — malware analysis report

Static analysis result for SHA-256 038b20509b04b051…

MALICIOUS

PDF

68.3 KB Created: 2021-02-20 15:29:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b82e0fa4dcde98f0cd1e4575e9d1082d SHA-1: 9a3e63947594538f63b0f94eb6c956af87ac5904 SHA-256: 038b20509b04b05170ff1423ecbe7471fda548ef1c3183593b937e25d8525b69
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://druttle.ru/wix?keyword=manual+de+guitarra+electrica PDF link annotation
    • https://cdn.sqhk.co/nefakovuwot/2djifgf/tofewubimuz.pdfIn PDF document text
    • http://lajibodomemebev.66ghz.com/bixowarofu.pdfIn PDF document text
    • https://cdn.sqhk.co/suwuwewazaka/bjfhjhc/geode_bookends_blue.pdfIn PDF document text
    • https://wowererifawop.weebly.com/uploads/1/3/1/3/131384429/9138277.pdfIn PDF document text
    • https://cdn.sqhk.co/xenudipu/jdfjbid/jiralejufaturapo.pdfIn PDF document text
    • https://cdn.sqhk.co/kososojog/igjcFgd/idle_tanks_3d.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/ciiWGia/answers_4_pics_1_word_8_letters.pdfIn PDF document text
    • https://cdn.sqhk.co/lupekute/Kgdvjd6/kogujepokixijonifovovegul.pdfIn PDF document text
    • http://bokegaf.22web.org/vidoguravavowuzerufoso.pdfIn PDF document text
    • http://pofitasexa.iblogger.org/73417005380.pdfIn PDF document text
    • https://cdn.sqhk.co/xowuzaseku/iiBicap/cover_orange_gameplay.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gugujis.epizy.com/logical_questions_with_answers_in_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/rotolazawumizawo.pdfIn PDF document text
    • http://gozotonitiki.epizy.com/nesapinojetune.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/kadhal_kavithai_movie_songs_starmusiq.pdfIn PDF document text
    • http://misosemarimo.rf.gd/8368499932.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/28781322806.pdfIn PDF document text
    • http://kitukogoxav.epizy.com/canteeni_mandeer_full_show.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_off0000ccb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB4 4936 bytes
SHA-256: 17d6ff1e7bfe277bf7e95f8b19fbb6d140129013ee3dce0bb9bafa55f50b0c9c
font_01_sfnt_off0000dd9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD9C 11600 bytes
SHA-256: 016e49b02699d6c493a2407965cf135bff132d7a6183cc01fe7afce745948198