Malicious PDF — malware analysis report

Static analysis result for SHA-256 566a904fa93667a3…

MALICIOUS

PDF

73.1 KB Created: 2021-02-16 12:25:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b3442a013e995aa6651a72422f1b6ad2 SHA-1: f5f96dd59dce69bbb846cfe45f007437dabfa990 SHA-256: 566a904fa93667a3874bd68f72fd1889ad5a5a6a25f40b34ad50e1923f888478
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://leonvi.ru/wix?keyword=calaveras+unified+school+district+staff+directory PDF link annotation
    • http://wordsideget.top/legazabotigorujewazulavxeqm8.pdfIn PDF document text
    • https://cdn.sqhk.co/gulezepu/GyWiefA/todo_cuadros_sorolla.pdfIn PDF document text
    • https://cdn.sqhk.co/pikevasoze/ewjdiiE/zuxigodajexen.pdfIn PDF document text
    • https://cdn.sqhk.co/gikunixa/Hjgihjf/48828866321.pdfIn PDF document text
    • https://cdn.sqhk.co/tusadopovet/xhahiHV/wexirutuderilesog.pdfIn PDF document text
    • http://wssummer.space/77522860952veqln.pdfIn PDF document text
    • https://cdn.sqhk.co/weruvewo/jUghOHN/52192981724.pdfIn PDF document text
    • http://idealicaitalia-ufficiale.site/senate_race_polls_in_south_carolinaea95m.pdfIn PDF document text
    • https://cdn.sqhk.co/tenokesime/Nb8hgHA/89302041664.pdfIn PDF document text
    • https://cdn.sqhk.co/jefigujaxev/HibBhiD/summoners_war_promo_codes_august_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/pisapaxosabo/jicb5LR/7655223650.pdfIn PDF document text
    • https://cdn.sqhk.co/pemoxeriko/ZSWTTic/download_game_lords_castle_mod_apk.pdfIn PDF document text
    • http://wikexulefusopa.iblogger.org/akanamali_song_fakaza.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://binuxusegewake.epizy.com/77980651681.pdfIn PDF document text
    • http://durapufagumupo.rf.gd/gazujanalo.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_off0000d9a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9A9 5176 bytes
SHA-256: 51bf079fe32b7d9a6ee682c53c7f05dc25c03c7d76f003561e94075486abeb73
font_01_sfnt_off0000eb49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB49 13352 bytes
SHA-256: 7c1ff493ff9e5afcea3e958c185226dea88c6383660adccf0bbca3268925d9d1