Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c1f1187c2a30ab2…

MALICIOUS

PDF

68.0 KB Created: 2021-02-14 15:04:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 66f29ff87dfa933455aa3825133aff69 SHA-1: c6ab0e1be9cd63d914147ea44a52b88589f6a884 SHA-256: 8c1f1187c2a30ab23ebd06ebbb6c25c3408799a51abd97feabd704a63516b9ea
126 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
  • 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://bologen.ru/aws?utm_term=introduction+paragraph+template PDF link annotation
    • https://cdn.sqhk.co/pivokazi/rdgfhhv/33813218601.pdfIn PDF document text
    • https://cdn.sqhk.co/kufalavoxig/Pie4gX5/blood_glory_immortals_mod.pdfIn PDF document text
    • http://fredo.bike/426165415752pbzy.pdfIn PDF document text
    • http://arthromedshop.xyz/anandam_movie_with_english_subtitlesegxue.pdfIn PDF document text
    • http://goshop32.site/fezoxunodekifawededa54pnm.pdfIn PDF document text
    • http://befigter.xyz/89338995420bfx6r.pdfIn PDF document text
    • http://yellownatural.space/download_kart_stars_modimwkt.pdfIn PDF document text
    • http://oneitshop.info/anecdotal_information_meaning30ei9.pdfIn PDF document text
    • https://cdn.sqhk.co/pitewomepe/jchhjiz/87399458378.pdfIn PDF document text
    • http://world-wildshop.com/cisco_router_ipsec_vpn_configuration_guideuhixp.pdfIn PDF document text
    • http://hhizmet.com/kukifotakowuvamuge3tt7p.pdfIn PDF document text
    • http://gaydating.world/35525820516vkgc9.pdfIn PDF document text
    • http://leqqurint.online/17640711636vmh1k.pdfIn PDF document text
    • https://cdn.sqhk.co/litonesi/3TCRYJ6/spotify_for_artists_app.pdfIn PDF document text
    • https://cdn.sqhk.co/wukibezoso/dghiih6/divizipasajarajodusogodi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cdac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDAC 5244 bytes
SHA-256: 856ac9ff2e6a20af425641580c7279e11da4d27a11eab8825da31807b32bf668
font_01_sfnt_off0000df54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF54 10500 bytes
SHA-256: 3206f5319f86e01008397d71ac97a44a1555b02d804397a5eb1bdbfc5463d4be