Malicious PDF — malware analysis report

Static analysis result for SHA-256 00677f2b221467b6…

MALICIOUS

PDF

94.2 KB Created: 2021-02-04 05:05:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1aff5f971cbc5b484af51fb1b6cab802 SHA-1: 724cf7e74e45e3e01ea8079657ad5039e490ce16 SHA-256: 00677f2b221467b66491ecc53044e209ab57d8e8bacecae51028480a3411489c
194 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.
  • 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.
  • 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=china%20vs%20america%20rap%20battle In PDF document text
    • https://cdn.sqhk.co/robimovule/gCjY4XM/kepexakuvowux.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/f7jg0ig/background_eraser_android_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/lirerafi/AFHhcid/bloon_tower_defense_5_download.pdfIn PDF document text
    • https://cdn.sqhk.co/sibamoxa/UuiaKEu/chase_bank_gender_road_canal_winchester_oh.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/f6jbWie/nazof.pdfIn PDF document text
    • http://dunetetemob.22web.org/left_blood_on_hotel_sheets.pdfIn PDF document text
    • https://cdn.sqhk.co/litawoxelida/82Cgdhj/10089_m_super_sniper_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/niripakexad/hdjjmii/48416451561.pdfIn PDF document text
    • https://cdn.sqhk.co/piwizogir/ji6hgUc/honey_bbq_sauce_recipe_easy.pdfIn PDF document text
    • http://vuvuga.xyz/mit_college_application_essay_examplesfeiii.pdfIn PDF document text
    • https://cdn.sqhk.co/veleviziwew/Rjhgc6f/fofumiwupaxu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xevorerokune.epizy.com/bodak_yellow_remix_song.pdfIn PDF document text
    • http://disetorabagubed.epizy.com/hello_chart_library_android.pdfIn PDF document text
    • http://wulitebajanuba.rf.gd/agricultural_science_project_leaving_cert_guidelines.pdfIn PDF document text
    • http://sagalesokalu.epizy.com/benim_hocam_corafya_ders_notlar_2018.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_off00013200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13200 5276 bytes
SHA-256: 74762ebf498d86ef4b92baa02d706593c53ac9fd931c07f7f9aeeb0690e31d9d
font_01_sfnt_off000143c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x143C3 12148 bytes
SHA-256: 39c0073351f2954f4e3998104f6ebe0db3d10b8ebe7b5004a118227792a5c286