Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9243ca304962144…

MALICIOUS

PDF

72.1 KB Created: 2021-02-16 21:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 58001f6029c6515f28f35620f5a76b93 SHA-1: 3028d3f7571c8e1de27408a53a9a0016b6f24ef0 SHA-256: d9243ca304962144c38165d7a479173cda9ffd6891c7c747f72d29348c4d9b5b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://maypoin.ru/wix?keyword=spongebob+cooking+krabby+patty+game+flip+or+flop PDF link annotation
    • http://klosheff.xyz/7651169113665tr1.pdfIn PDF document text
    • http://faruvob.iblogger.org/titokaxupufakozat.pdfIn PDF document text
    • https://cdn.sqhk.co/koditisalupe/mghciav/17197155606.pdfIn PDF document text
    • http://milanbeachs.space/the_sims_freeplay_mod_apk_2019xdjb8.pdfIn PDF document text
    • https://cdn.sqhk.co/tovozovuzedu/hjfjijc/steam_summer_sale_2020_games_list.pdfIn PDF document text
    • https://vamubediva.weebly.com/uploads/1/3/4/9/134901044/d64f54bb530.pdfIn PDF document text
    • https://cdn.sqhk.co/lanumakefu/Piijji1/54512670574.pdfIn PDF document text
    • http://pubgucbayim.com/counter_strike_1._6_free_for_macbook52mcd.pdfIn PDF document text
    • http://ens-pictures.ru/math_place_value_worksheets_3rd_grade9rd3x.pdfIn PDF document text
    • https://gujejedadun.weebly.com/uploads/1/3/1/3/131398181/dijij-gubetufemopi-diwijasug-zaxevuwumita.pdfIn PDF document text
    • https://sobidoduwipiver.weebly.com/uploads/1/3/1/4/131406433/83601e6dcb159.pdfIn PDF document text
    • https://cdn.sqhk.co/kalusoxat/fUShaja/how_to_write_code_for_cnc_machine.pdfIn PDF document text
    • http://vseti.life/affairscloud_puzzle_downloadn854o.pdfIn PDF document text
    • https://foderojev.weebly.com/uploads/1/3/4/0/134041652/lewanoxitun.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/dezajok/sasulupedepupowabajugigej.pdfIn PDF document text
    • http://xumusemowujev.epizy.com/piriformis_syndrome_treatment_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/bridal_emoji_pictionary_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/informed_consent_medical_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/avengers_1978_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/vinejivunitego/easl_practice_guidelines_autoimmune_hepatitis.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/angularjs_formdata_object.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_off0000d139.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD139 3312 bytes
SHA-256: ac66ddecb1889e99694234647e4a1e19b6174440e696c9ee44c6cb9711419273
font_01_sfnt_off0000dd1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD1A 5564 bytes
SHA-256: 2f4369a2beab82bae4953fd74aed7aa166447e4f4c2cfb938870c6a8a7429f7a
font_02_sfnt_off0000f00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF00B 10016 bytes
SHA-256: b0023d376f3bd1cbb042b8066a493ccac0363d0c8824a9e77dce827ad8855e4e

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