Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f21d7c59261834a…

MALICIOUS

PDF

71.5 KB Created: 2021-03-05 03:04:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5570076e33bc0593c7e662e41f4d648c SHA-1: 7b9251893cfa669081b2c89996e5bba184692336 SHA-256: 3f21d7c59261834a4121f4fe668dec607ed519f49d8e2a797e67452087973b78
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://jacksth.ru/award?keyword=how+to+set+up+sharp+xe+a207+cash+register PDF link annotation
    • https://cdn.sqhk.co/pazibafax/ajeDyja/witilere.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407777/normal_5fc7469c51d75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503525/normal_600d4ad309abd.pdfIn PDF document text
    • https://cdn.sqhk.co/rovifatira/kjbjfih/html_code_popup_video_player.pdfIn PDF document text
    • http://galoomer.online/anemia_falciforme_icd_1045h3o.pdfIn PDF document text
    • https://cdn.sqhk.co/beledufe/gnic8NH/hockey_goal_light_emoji.pdfIn PDF document text
    • https://cdn.sqhk.co/lixozimiz/3IghGLc/nenafositimaga.pdfIn PDF document text
    • https://lunipudazu.weebly.com/uploads/1/3/4/4/134462877/kegegamagu.pdfIn PDF document text
    • https://cdn.sqhk.co/dusaradezat/5hiVij8/goosebumps_night_of_scares_pc.pdfIn PDF document text
    • http://copyrighytsupport.com/solving_quadratic_equations_by_factoring_worksheet_answers_with_work56eux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377381/normal_6022a3e085598.pdfIn PDF document text
    • http://tb-films.ru/xagogonuzaxgb4oi.pdfIn PDF document text
    • https://gudamajufopuso.weebly.com/uploads/1/3/5/3/135393763/9252852.pdfIn PDF document text
    • http://ig-copyrightnoticehelp.com/kohler_jacuzzi_tub_cleaningk7ygb.pdfIn PDF document text
    • http://petajofap.22web.org/technivorm_moccamaster_kbg741_coffee_maker_polished_silver.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500446/normal_5fcf0bb8cf8f7.pdfIn PDF document text
    • https://bikezurikol.weebly.com/uploads/1/3/4/6/134612173/2864681.pdfIn PDF document text
    • http://tiktoktop.design/85125841814tl2cg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451927/normal_5fd0eb5bf1fcf.pdfIn PDF document text
    • http://taxiditugivubed.iblogger.org/lopemobumifaxe.pdfIn PDF document text
    • http://mobijogizex.22web.org/7087980182.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://mofibukuzoke.rf.gd/kitavupumug.pdfIn PDF document text
    • http://ratudafoxivux.rf.gd/aashiqui_film_song.pdfIn PDF document text
    • http://fisuzes.epizy.com/digimon_rearise_digimon_guide.pdfIn PDF document text
    • http://zukizibukuxupir.epizy.com/97407346466.pdfIn PDF document text
    • http://wajodojizofe.epizy.com/51185295516.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE93 5416 bytes
SHA-256: 3955b60450b9eb09d605d07a0b4ccd44c06e7fb10a8b80199dc19cff909260ee
font_01_sfnt_off0000e134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE134 9732 bytes
SHA-256: e7eb6699a6dad1d48e73726ae12cc518189433c7f24100607502c01f0adbc40a
font_02_sfnt_off00010240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10240 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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