Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bc6260d9d4b411b…

MALICIOUS

PDF

81.7 KB Created: 2021-02-23 10:55:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 032911bb387319317157736c387ce519 SHA-1: 438e6fca4455d56a22cf44f44d11d0fd9e78159d SHA-256: 1bc6260d9d4b411b67f9a0ef2dc609c01dcff8b82b8650cea5c215636d9b335e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, with one specifically identified as an external URI pointing to a suspicious domain. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://crophysi.ru/strik?utm_term=neoliberalism+and+the+end+of+liberal+democracy+wendy+brown+summary PDF link annotation
    • https://cdn.sqhk.co/lebudawojafi/jhxSiiq/pico_de_gallo_real_meaning.pdfIn PDF document text
    • http://microbladingcertificationdfw.org/gw2_solo_necromancer_guideuiodw.pdfIn PDF document text
    • http://sarkife.site/85022869356z0kvv.pdfIn PDF document text
    • http://shoop-fh.ru/rhythm_exercises_for_beginners58bgt.pdfIn PDF document text
    • https://cdn.sqhk.co/zamikukodef/FGgdyeW/war_of_shogun.pdfIn PDF document text
    • https://cdn.sqhk.co/ragejeli/ggheTxx/78381562651.pdfIn PDF document text
    • https://cdn.sqhk.co/nejijilo/dayO3n9/60326739990.pdfIn PDF document text
    • https://cdn.sqhk.co/busibelifiv/apGEhiY/ates_ve_su_6_oyna_kral_oyun.pdfIn PDF document text
    • http://meriline.store/bullet_basya_film_songzyt11.pdfIn PDF document text
    • https://cdn.sqhk.co/nakijalufiw/jbHahgT/49803287018.pdfIn PDF document text
    • https://cdn.sqhk.co/dusimefosix/P5uXihy/bollywood_box_office_2020_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/felegabiw/aoPfPjd/dumb_ways_jr_boffo_s_breakfast_apk_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/gobajejuz/fGnPIjb/medini.pdfIn PDF document text
    • http://zuvels.xyz/knife_cut_sound_effect_downloada3y6s.pdfIn PDF document text
    • https://cdn.sqhk.co/guzorata/c4QRshd/matrix_company_structure_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/vedimurami/IO6Rvhf/japaxudumutug.pdfIn PDF document text
    • https://cdn.sqhk.co/wajerewuwer/NMxhbiV/sazoxifube.pdfIn PDF document text
    • https://cdn.sqhk.co/sivadapexiri/7F7Gkij/buy_globe_load_via_paypal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DA 5444 bytes
SHA-256: a9aec7f9ca8cea67ced47f1144147ff73100da1dcd4442aaa32eb4853e22603a
font_01_sfnt_off0001073d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1073D 10396 bytes
SHA-256: 7cf407dba9590842044bfa16e378f66562824f1cb91ad5bea412a742febd3320
font_02_sfnt_off00012ad6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AD6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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