Malicious PDF — malware analysis report

Static analysis result for SHA-256 56ae31b87d7937d1…

MALICIOUS

PDF

71.8 KB Created: 2021-03-11 12:39:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 09ef81ac8550380397b76eb043f28789 SHA-1: cd71a12cbe26b3befcb88b7cec50130b573e74e3 SHA-256: 56ae31b87d7937d1b9e73f48d6fd222fcc0f959b2946e3da346e87086b76e639
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jumiwimov.ru/wix?keyword=how+to+hack+lucky+day+2020 PDF link annotation
    • http://bugosegu.scienceontheweb.net/22168766979.pdfIn PDF document text
    • http://gadetebes.sportsontheweb.net/why_wont_my_brother_printer_print_in_color.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383924/normal_5fde60927c976.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379482/normal_601a1e3ae50c8.pdfIn PDF document text
    • https://cdn.sqhk.co/takabalal/aUmjfgj/61605728804.pdfIn PDF document text
    • http://muxoman.mygamesonline.org/analog_computer_examples.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370264/normal_600b35d6ebb1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421473/normal_600f3345553de.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/dMX1ijk/senegumumidedexabali.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366316/normal_5ffb69a00fe48.pdfIn PDF document text
    • https://cdn.sqhk.co/kufiremikaf/a29ehjv/i_wish_your_happiness_always.pdfIn PDF document text
    • http://kosamaritaj.getenjoyment.net/21533020908.pdfIn PDF document text
    • https://cdn.sqhk.co/pozigafo/GVigCfx/s_p_world_exploration_trends_2019.pdfIn PDF document text
    • http://pirewarekow.mywebcommunity.org/jegemupake.pdfIn PDF document text
    • https://cdn.sqhk.co/tifapoxur/Zhco3ih/fire_sniper_runes.pdfIn PDF document text
    • http://resipowepo.getenjoyment.net/pictures_of_hollis_woods_chapter_13.pdfIn PDF document text
    • http://pasipodo.mypressonline.com/srimad_bhagavatam_english_download.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/6f54fe5f-da19-4fca-82d0-a94f286f65c3/stock_market_crash_today_tsx.pdfIn PDF document text
    • http://zukomakiduw.myartsonline.com/how_to_become_a_licensed_finish_carpenter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7928640-3300-461d-abc9-05c5b3d73faf/vebilizofazuro.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_off0000dcf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF4 5248 bytes
SHA-256: 7ea7caade09a34f61b726fd7ddc7e78f7b18922f55c3893df9be8143e81ec2a6
font_01_sfnt_off0000eee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE2 10396 bytes
SHA-256: f984603fc1b60f22d2632f7d68af460c86cba4ece63ef4c23faad4825a50868f

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