Malicious PDF — malware analysis report

Static analysis result for SHA-256 c809ca847fd4a567…

MALICIOUS

PDF

72.3 KB Created: 2021-02-04 12:38:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a7aa93aa6de9261706511d46c20110a9 SHA-1: 497627580335b5e328006c208bfb2633a5b34cfb SHA-256: c809ca847fd4a567478e60b46d2d15270cfe5c18e6eed82b41569aa6651991b0
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://baarspo.ru/wb?keyword=emotional%20love%20status PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451950/normal_5fe35e5e28aee.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/ihdq8ha/boomerang_channel_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/damapegapi/ihmZnQx/20155_heron_circle_abingdon_va.pdfIn PDF document text
    • http://clyb-wylcan3.space/zona_abisal1j1fw.pdfIn PDF document text
    • http://instapresent.site/3rd_grade_daily_language_reviewlzbna.pdfIn PDF document text
    • http://eurofamily.pro/20199282561cp52e.pdfIn PDF document text
    • https://dipidedi.weebly.com/uploads/1/3/2/8/132815933/841e02f14cc4.pdfIn PDF document text
    • http://leyloften.online/sql_query_practice_questions_with_solutionsdrfsy.pdfIn PDF document text
    • http://lifeshop.pro/blades_away_tipskki7r.pdfIn PDF document text
    • https://cdn.sqhk.co/xedasuzefer/hiYhcgh/the_sims_2_pets_cheats_ps2.pdfIn PDF document text
    • http://jigatinapa.22web.org/ap_physics_circular_motion_worksheet_answers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447880/normal_5ff67f3a113d5.pdfIn PDF document text
    • https://gazobibulome.weebly.com/uploads/1/3/4/7/134775133/nanawudawagidiw.pdfIn PDF document text
    • http://ogranicbio.space/92612215296hxjnq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411250/normal_6007779af0f31.pdfIn PDF document text
    • http://seomagnat1.online/mazzaratie_monica_porn2h0ii.pdfIn PDF document text
    • http://gravkamen.ru/advantages_and_disadvantages_of_whistleblowing_in_organisationb3x7j.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kosidigipetuvu.epizy.com/jiripedewukimiji.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_off0000e254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE254 4752 bytes
SHA-256: 61a1f95e375b99956ba8fcab59a513659dd7812335c1d44324a518e478d94757
font_01_sfnt_off0000f26c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF26C 9996 bytes
SHA-256: a5d83f959e6444338c9cebd295c547989220dc6bca0fd78959715fcd2210c01d