Malicious PDF — malware analysis report

Static analysis result for SHA-256 23dda0acc2e58322…

MALICIOUS

PDF

67.3 KB Created: 2021-02-25 05:58:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 853332aaa08d18848914b92c4c705b6a SHA-1: 60d6602de2c2cf7836ab2be22758db49e0bf750f SHA-256: 23dda0acc2e58322d237ddf617d3ec298354eceaa2be21d4b736d802734b237f
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://maypoin.ru/award?keyword=wing+chun+instructors+near+me PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460446/normal_5fe2b57477558.pdfIn PDF document text
    • https://salogisamokowo.weebly.com/uploads/1/3/4/6/134649366/bifateforewifabib.pdfIn PDF document text
    • https://cdn.sqhk.co/talurelope/jcMBhf4/pc_notepad_for_android_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/j9gcyii/dominos_online_menu_prices.pdfIn PDF document text
    • https://cdn.sqhk.co/bujedebi/fgfdt3G/jump_and_shoot_warzone.pdfIn PDF document text
    • http://rejudatawenu.iblogger.org/walukolumoxumabikakowu.pdfIn PDF document text
    • https://mitafewojoruwe.weebly.com/uploads/1/3/1/3/131381680/wipoxibuwidujut.pdfIn PDF document text
    • https://guxofoxevi.weebly.com/uploads/1/3/4/7/134737998/c38171b66.pdfIn PDF document text
    • https://poxatekegevu.weebly.com/uploads/1/3/4/7/134753674/2329297.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/wivunonovef/high_cholesterol_dietary_guidelines.pdfIn PDF document text
    • http://livirava.atwebpages.com/jesse_tree_ornaments_jesus_storybook_bible.pdfIn PDF document text
    • http://goxakimolo.epizy.com/12708496777.pdfIn PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/the_strange_case_of_mole_airlines_flight_1023_worksheet_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/woweveloxowowubanoxib.pdfIn PDF document text
    • http://najenumezoxiba.epizy.com/google_maps_api_key_python.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/what_base_do_navy_seals_train_at.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/awards_for_all_form.pdfIn PDF document text
    • http://wexorasojovi.epizy.com/66095645005.pdfIn PDF document text
    • http://sasukagisodubex.onlinewebshop.net/star_trek_voyager_ship_vs_enterprise.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_off0000cccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCCB 5192 bytes
SHA-256: 7609a2a6d371ba40440ba5a710b38257ab6bea9b35c7967e9efd82d4ebf39044
font_01_sfnt_off0000de61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE61 9912 bytes
SHA-256: 08320700e753e06e6e5badd262241aff233c33e9fb4b58a6e43dfd6f34de4dce

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