Malicious PDF — malware analysis report

Static analysis result for SHA-256 19a83e34ebf787a7…

MALICIOUS

PDF

77.6 KB Created: 2021-05-04 06:31:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 479bec78141f8413a01cfef9322f78d2 SHA-1: 5789a9ba7346ebfd69d8acf8a52d094f76b25893 SHA-256: 19a83e34ebf787a744498887dd0545b116e215192c6f31fa442e17d3a2242067
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xajibur.ru/strik?utm_term=3g+lg+cosmos+3+vn251+verizon+or+pageplus+slider+phone PDF link annotation
    • http://fresh-ita.space/ar_15_scopes_trijiconotxta.pdfIn PDF document text
    • http://stonersfranchise.com/25280881831x1i32.pdfIn PDF document text
    • http://remont-pc.website/sipozipafa0cmp.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474470/normal_5ff502f9cbe9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407062/normal_601724b47f4db.pdfIn PDF document text
    • http://ca-manalapan.space/aprilaire_thermostat_8466_installation_manualurxvv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454813/normal_601ae017d4a26.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452593/normal_5fcd6580244a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402289/normal_605f865bcaf1d.pdfIn PDF document text
    • http://brumbum3.xyz/harry_potter_sound_clips_free_downloadkase4.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/napejaxosinages/journey_to_the_east_hong_kong_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/besudodolafutut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a31abf3-77e1-4a4c-bc41-a0972aa2927c/what_is_micro_level_planning.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/17976043713.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/37424387118.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/biometricprompt_example_android.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/reading_charts_and_graphs_worksheets_third_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/minions_movie_2015_full_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e941bd1a-8595-406e-ad34-ed135c4a84d9/gozilaranosabit.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/conflict-coping_strategies_in_relationship.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/851f3ff8-3e2d-4b65-9ca8-adbcc4b9d708/psychological_first_aid_training_philippines_2020.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_off0000ef44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF44 5972 bytes
SHA-256: bbfe434ffab8faaaea2f718aaf210933500b9cca802f415323c3304876690c80
font_01_sfnt_off00010385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10385 11012 bytes
SHA-256: c4b466563c62df0cd606b463e55923e2580888d30f7375df65749ddfd77140fa