Malicious PDF — malware analysis report

Static analysis result for SHA-256 43505425c2787078…

MALICIOUS

PDF

76.3 KB Created: 2021-03-08 08:45:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 6cf0b7ee963d5213f76cf9233e91a5a9 SHA-1: 1816fa2ec3bb021e7fc9daeadc567b2ae049f340 SHA-256: 43505425c27870781d0dcbe20a42c4140665b213d707b9a7d8555ae3effda5a8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/wix?keyword=que+es+el+punto+de+rocio+en+pintura PDF link annotation
    • https://cdn.sqhk.co/wanadujogo/gW2kRrq/tetris_ultimate_ps4_2_player.pdfIn PDF document text
    • http://pexiwaz.iblogger.org/bitlord_2._4._1_free.pdfIn PDF document text
    • http://fit-italy.space/tevebizudaxowjffq.pdfIn PDF document text
    • http://domastmsk.space/cuento_de_los_hermanos_grimm5skp9.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/ieghrjX/ticket_to_ride_europe_expanded.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403959/normal_6006897dd9fb5.pdfIn PDF document text
    • http://naturebiolog.space/aws_glue_cloudformation_templatewo8qc.pdfIn PDF document text
    • https://cdn.sqhk.co/mujexoxa/Hzigqhf/pounded_flat_chicken_recipes.pdfIn PDF document text
    • http://raisinshub.club/android_tablet_pc_replacement080zi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474720/normal_5ff0d675b93be.pdfIn PDF document text
    • http://dofukatejipoz.66ghz.com/gokizubizixukilukajati.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://leludopovofa.rf.gd/file_type_test.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/75657231447.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdea9d0a-0a9e-4065-8e59-5c3f54e18f85/boy_scouts_citizenship_in_the_community_merit_badge_pamphlet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d5b4960-c81d-426c-a2c6-9988bc629631/72600579682.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/98042988702.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d45a8f54-f6c3-41e3-aa2e-6571ba064a64/healthrider_s300i_price.pdfIn PDF document text
    • http://dofemuxu.rf.gd/boriz.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/zentangle_pattern_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/shankar_bhagwan_photo_ing.pdfIn PDF document text
    • http://sugekix.rf.gd/34240227605.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_off0000ed46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED46 5128 bytes
SHA-256: ca2962998a11b9c92dd39cce758f8d8ceadd8f4244837cf56450254862c13429
font_01_sfnt_off0000fec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC4 11460 bytes
SHA-256: d30c7e2609198504e6c345d952538016b1c67fc447c9f5e7581bb658148a9bd2

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