Malicious PDF — malware analysis report

Static analysis result for SHA-256 2477699db0594a28…

MALICIOUS

PDF

73.3 KB Created: 2021-02-25 04:04:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7e6acc1618358be06da9a26a7481db10 SHA-1: 19b0e5ac3dafaa85438fad3bd1fd4f5b09588ba6 SHA-256: 2477699db0594a284cffdca5242e135830355b9a82ab8c10d33b8f0172eb4ee7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=maytag+centennial+washer+service+manual+pdf PDF link annotation
    • http://lg-copyright.com/liparopotibytn9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375093/normal_6011e19c806b1.pdfIn PDF document text
    • https://nirilixurem.weebly.com/uploads/1/3/4/4/134474770/7911931.pdfIn PDF document text
    • http://thepropheticapp.com/xiximopegj6xlh.pdfIn PDF document text
    • http://openlait.pro/forever_21_smx_warehouse_saledifhp.pdfIn PDF document text
    • http://farvestnn.ru/french_learning_book_freea1ywc.pdfIn PDF document text
    • http://hookup158.fun/sigmund_freud_books_chronology33s5a.pdfIn PDF document text
    • http://artyom.guru/mozivutokunebasinlxvdz.pdfIn PDF document text
    • http://hd-cam-mirror-up1.club/what_is_shinigami_worth_in_autcbu8p.pdfIn PDF document text
    • http://kudretbozaci.com/frigidaire_gallery_refrigerator_ice_maker_not_making_icepnvmu.pdfIn PDF document text
    • https://fanonobumoxevo.weebly.com/uploads/1/3/1/3/131384335/delem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414701/normal_5fda20889652b.pdfIn PDF document text
    • http://markettop.pro/bell_less_top_charging_systemtez3i.pdfIn PDF document text
    • https://fapufeloku.weebly.com/uploads/1/3/1/0/131071019/2922318.pdfIn PDF document text
    • https://feliwisinawo.weebly.com/uploads/1/3/1/8/131856919/zukojoviludexomef.pdfIn PDF document text
    • https://wojemalivameju.weebly.com/uploads/1/3/0/7/130775107/02d576fe61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496001/normal_60296cabdcca7.pdfIn PDF document text
    • https://fuwiwidiwijidex.weebly.com/uploads/1/3/1/6/131637339/9561521.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e22a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE22A 5828 bytes
SHA-256: ef87330b24a04089c6da84bf8a171c0003ccb55d756c15e4f10747734594ebd6
font_01_sfnt_off0000f606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF606 9920 bytes
SHA-256: 8ec625309c2f77d697c47de8842711ae88f546953fef9b0dc84b21b3e131e69c