Malicious PDF — malware analysis report

Static analysis result for SHA-256 c722332c1aefca33…

MALICIOUS

PDF

73.9 KB Created: 2021-02-22 20:49:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: baba186ede88cd6d9f6e95ffacee72c2 SHA-1: 808e4510b925d2c279bd7a09ff5f411d61350e64 SHA-256: c722332c1aefca33d0cec834675391362a59e4132e247c1fe9b72cc7545dae4e
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://leonvi.ru/123?utm_term=ozymandias+poem+analysis+essay PDF link annotation
    • http://lanejaselisipu.22web.org/musical_instruments_vocabulary.pdfIn PDF document text
    • http://psychologyrelax.xyz/96685880003wa02p.pdfIn PDF document text
    • http://copyrightprivacy.site/86208859651mfo33.pdfIn PDF document text
    • http://budonap.iblogger.org/how_to_enable_flash_player_in_chrome_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/sirobuse/ggmz36W/sniper_movie_2020.pdfIn PDF document text
    • http://genoray.pro/biology_book_prentice_hall_online_freebx28m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480899/normal_601b43a89600b.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/ejercicios_de_espaol_primer_gradobjiqm.pdfIn PDF document text
    • http://tameenegypt.com/saparuzifuxt1t0g.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/pirate_king_game_free_spins9xfby.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gibapomidumitar.rf.gd/wokiregoweweger.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/roasted_chicken_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/shahid_app_for_samsung_smart_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/decimal_fractions_percents_worksheets.pdfIn PDF document text
    • http://lofomaseforuz.rf.gd/competitive_benchmarking_analysis.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_off0000e648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE648 5188 bytes
SHA-256: cb6674b3728ba4d8b18fe1cb43d09554df3c45288b858a682e44adbb32e2edef
font_01_sfnt_off0000f7e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E6 10272 bytes
SHA-256: f7ffbdfa2e871e4d614978a499bb3eb05c0f3db1c22e0ed2648e61047931befe