Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3571907e4e151b5…

MALICIOUS

PDF

67.8 KB Created: 2021-02-27 08:11:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d627f15c6d76ff6d39f93f8105fdef11 SHA-1: a8631616d4b9329e0fd8e7e771ac9fcd6f65318d SHA-256: d3571907e4e151b5846bf36fa6a427c2022500cbece6fda350c77a6d8fe026b9
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://baarspo.ru/wb?keyword=shimano%20di2%20ultegra%20shifters PDF link annotation
    • https://cdn.sqhk.co/kewawukufiju/hiAXhcZ/7493717782.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/kjhjbgf/fruit_clinic_level_46_stuck.pdfIn PDF document text
    • http://botanilix.mygamesonline.org/element_tv_codes_for_xfinity.pdfIn PDF document text
    • https://cdn.sqhk.co/xegunorasu/uSXA7ib/vumatesiwinuxikur.pdfIn PDF document text
    • http://tuvivukaroj.mygamesonline.org/tp-link_tl-wr841nd_als_access_point_einrichten.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/watch_the_red_tent_online_free_part_2.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/L1hexv4/magi_magic_video_editor_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/nomelafu/jc9IHjf/98739262152.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/xetulego.pdfIn PDF document text
    • http://ronifibofizet.medianewsonline.com/tapanixinesigipirarizag.pdfIn PDF document text
    • http://robugipunebib.mygamesonline.org/fabejubelakefevilunowusob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kulebosux.myartsonline.com/nisagami.pdfIn PDF document text
    • http://kilarosine.atwebpages.com/7000494046.pdfIn PDF document text
    • http://jirabasojexosud.atwebpages.com/gepidalojowel.pdfIn PDF document text
    • http://pojozija.onlinewebshop.net/edge_of_the_empire.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_off0000cd57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD57 5556 bytes
SHA-256: c14f08ea78d76356d065b3545715e38a3bae30613972bb00871abac9c42fd59b
font_01_sfnt_off0000e008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE008 9992 bytes
SHA-256: 5c0b31317056583ba82e0ea0f3d241b2bb205e029eb55694b6f8ea1143c4bdeb