Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f1dc26248803076…

MALICIOUS

PDF

84.2 KB Created: 2021-03-05 11:44:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 2753eb3feb84f2360d74448b8b54d270 SHA-1: 3058ecb1d21acfa083f4322604445a31eec8b113 SHA-256: 6f1dc262488030766b2b8841ff24491289fc28decb258c88af48e334f1e27ab8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that redirects to a suspicious domain, masquerading as search results. This technique is commonly used in phishing campaigns to trick users into visiting malicious websites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for credential harvesting or malware delivery.

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://druttle.ru/wix?keyword=2020+california+libertarian+primary+results PDF link annotation
    • http://povisowalikim.scienceontheweb.net/how_to_play_bar_chords_for_beginners.pdfIn PDF document text
    • http://fertpin.online/proloy_bengali_movie_full_hducpyt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369160/normal_601808bf428d5.pdfIn PDF document text
    • http://raguvigawak.mypressonline.com/zojirushi_ns-tsc10_micom_rice_cooker_and_warmer.pdfIn PDF document text
    • http://vuzuwul.getenjoyment.net/sejokoko.pdfIn PDF document text
    • http://smeshnoykir.space/ruvitaxojikujeu9i.pdfIn PDF document text
    • http://jidapuxedepu.medianewsonline.com/is_ice_breaker_gum_sugar_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481164/normal_5fd038c5e91c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482629/normal_5fdc7823cc94e.pdfIn PDF document text
    • http://cashfree.store/831067162520u9gg.pdfIn PDF document text
    • http://reduslim-official.website/christmas_quilt_runner_patternsxx9wo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9c6f853-d8f0-45ac-bc8e-8b2ea4d906fb/kobalt_wet_tile_cutter_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3416013c-8d6c-4ec7-87bd-7825080ca530/coachmen_rv_stock_price.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/72718696360.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/belefowefi.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/consulting_industry_report_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/24600564273.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e918d8c-2492-441c-a77d-c2d99337a41e/95075268863.pdfIn PDF document text
    • https://s3.amazonaws.com/gopifu/sijelomiwopi.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/20220232248.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/wijalavuzowuxugobumafafi.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_off000107d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107D3 5580 bytes
SHA-256: 7ef9a8a4adc4b93a2d97c24e3c2f6c1eaf568062b49c2c4b1d2ccc8242fb17cf
font_01_sfnt_off00011abb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11ABB 12468 bytes
SHA-256: 0dd24e602ca1277983954786f7e1e4f34f507e5fb0a4345151db9d81b62d8cda

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