Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb5372a1ae3f4527…

MALICIOUS

PDF

64.6 KB Created: 2021-02-14 02:01:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1e418d108bb849df50db6a349e60142d SHA-1: c4dbd1da4e2628bc5d8d1b066e3875f7a3a38068 SHA-256: cb5372a1ae3f4527313ca3bd3b4739719d48937ef23993e3c11ab69bdb1f2af0
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://jacksth.ru/wb?keyword=klixon%207277-%202%20datasheet PDF link annotation
    • https://cdn.sqhk.co/benibavagoge/gghQbge/sijofapo.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/7STiiKn/save_earth_quotes_in_malayalam.pdfIn PDF document text
    • http://copyrightmediahelp.com/mojivosaviluxidolu9gocj.pdfIn PDF document text
    • http://immorta-cross1.club/destination_b1_photocopiable_tests_aa0d8b.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/IRcgdlV/43046290160.pdfIn PDF document text
    • https://cdn.sqhk.co/javijaxim/J5gjjdk/picture_lock_on_iphone.pdfIn PDF document text
    • http://baffer-shop.space/39557622822iko7z.pdfIn PDF document text
    • http://abzac.me/64781239349hdjkv.pdfIn PDF document text
    • http://winsl.space/bubble_gum_simulator_roblox_codes_2020rqd9t.pdfIn PDF document text
    • https://cdn.sqhk.co/pobopuwubox/gwy5hh9/english_sinhala_dictionary_offline_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xuzakob/28442736536.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/84563927713.pdfIn PDF document text
    • https://s3.amazonaws.com/widetunipet/bhadra_audio_songs_ing_telugu_lo.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/box_office_report_india_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/parewemawanolubevi.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/windows_10_enterprise_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/61657334760.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/anime_tv_brasil.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_off0000bf27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF27 5096 bytes
SHA-256: d191b57d0939fcaa413c44a9ffbad3b8915a9a8116bfece04fa4db5d43d00765
font_01_sfnt_off0000d091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD091 10812 bytes
SHA-256: ae8fc283b9f14f683428a32e3051471495ad9c4ba6eb5e8f928c0de86f20acaf