Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b5ab66beb26766f…

MALICIOUS

PDF

67.0 KB Created: 2021-03-02 16:56:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d7aa6f962c8f4bbb013e5db4f71ad2b8 SHA-1: 258a92937f81cfb99d67aebecc810c0fa843965d SHA-256: 5b5ab66beb26766fa54dfea2c1dc8e8e29bcf3ea2221cc7788a4feb11e5fb925
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://baarspo.ru/wix?keyword=intermatic+t101+instruction+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408719/normal_600cf25053070.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/hihBNwN/41333199114.pdfIn PDF document text
    • https://cdn.sqhk.co/kugorazig/OjaqNjg/komofinok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383924/normal_603bd58422a15.pdfIn PDF document text
    • https://cdn.sqhk.co/degavorofala/eiazje7/comedy_central_roast_battle_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479214/normal_5ffb100ce5449.pdfIn PDF document text
    • http://netewe9.xyz/patrick_spongebob_meme_templateskrui.pdfIn PDF document text
    • https://cdn.sqhk.co/gisanewat/wiijdnE/quick_draw_mcgraw_in_spanish.pdfIn PDF document text
    • https://cdn.sqhk.co/begokaxawip/nBYjjgd/tutexegededireg.pdfIn PDF document text
    • http://salonhq.xyz/83856913376wq9g9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389581/normal_5fe3b5de055e0.pdfIn PDF document text
    • http://arendagg.xyz/apn_nrj_mobile_pour_android2bbzu.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/tutapaxi/how_to_reset_hp_4500_wireless_printer.pdfIn PDF document text
    • http://vitorozakosi.rf.gd/arcaea_mod_apk_2._1._0.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/27105616173.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/dark_knight_guide_bdo_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/ultrasound_scan_report_boy.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/which_oral_b_brush_head_is_the_softest.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_off0000cb90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB90 5076 bytes
SHA-256: d746b0603f562eb173d1c1d45a0f0adcd87f4b08b22215f241bcb9350036268e
font_01_sfnt_off0000dcb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB5 10032 bytes
SHA-256: 2d4818b830abb79060db7c40f9ad3c3cae6d48ad32bf842c99511ea8189b6716