Malicious PDF — malware analysis report

Static analysis result for SHA-256 cccaad54302b7317…

MALICIOUS

PDF

74.6 KB Created: 2021-02-06 01:15:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 783eee04bbb275b3022fb351c0321e02 SHA-1: 954fc391ad106848633b5020e7c2f5daba9c3550 SHA-256: cccaad54302b731762b6409c22a301ceaa5ce0c59eb55db4f84ef8f57866a9f2
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wb?keyword=how%20to%20draw%20graph%20in%20excel%20spreadsheet In PDF document text
    • https://xodimiteti.weebly.com/uploads/1/3/0/7/130776847/9688147.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501775/normal_5fdcb26483235.pdfIn PDF document text
    • https://cdn.sqhk.co/semejegofip/YB3S1gB/the_oregon_trail_hd_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/nexuliwadi/gehij7H/fruit_ninja_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kenipafitu/iidnEhe/my_disney_account_login.pdfIn PDF document text
    • http://lavkavkusa.store/mini_militia_doodle_army_2_old_versionz29lf.pdfIn PDF document text
    • http://nicechange.space/love_wallpaper_hd_4k_freekvn7c.pdfIn PDF document text
    • https://diruwogedow.weebly.com/uploads/1/3/1/3/131382439/zuremavefolonuzajelu.pdfIn PDF document text
    • https://vazewelekataba.weebly.com/uploads/1/3/1/6/131606588/lasegova_wokivonoperede.pdfIn PDF document text
    • https://bogonifad.weebly.com/uploads/1/3/4/1/134108647/28e691c96d713f.pdfIn PDF document text
    • http://com-signto5.xyz/download_eagleeyes_plus_apknxff2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373782/normal_5fd5f3f491e11.pdfIn PDF document text
    • http://ijmalan.xyz/toyota_camry_2013_performancekuw9x.pdfIn PDF document text
    • http://vitalia-transports.com/87542072248g26be.pdfIn PDF document text
    • https://kuxifegofemiza.weebly.com/uploads/1/3/4/8/134865321/sufotita_xeladomupiv_dagodovulimi_morawifogog.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwejujorod/RWxhV2D/51021346346.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500674/normal_5fd651385a0be.pdfIn PDF document text
    • https://cdn.sqhk.co/kavejufa/Zhc3iib/life_after_death_star_beer.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_off0000e582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE582 5456 bytes
SHA-256: 0e57b9095ec832ebf07da5c8b6b3769c71044c36ce2c4a8b34d482f41468319f
font_01_sfnt_off0000f820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF820 10920 bytes
SHA-256: e6bb6be518d3debc54840a4dd01843a265a42783bc2ac7446c1ac145cc48bbda

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