Malicious PDF — malware analysis report

Static analysis result for SHA-256 00924e851efd3a84…

MALICIOUS

PDF

68.9 KB Created: 2021-02-26 20:24:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2b7b05962a1f13ebfc208376ca86e687 SHA-1: 4fb043d0872e953172d4b681b8446494e813bea2 SHA-256: 00924e851efd3a84234ccc8d235f0fe13bf110b9167760279c6a2a86956f1610
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://midufefew.ru/award?keyword=how+to+unlock+a+speed+queen+commercial+washer PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4476011/normal_5fca64011b824.pdfIn PDF document text
    • https://lofokuvowuvi.weebly.com/uploads/1/3/4/3/134362742/5701629.pdfIn PDF document text
    • http://winoorama.site/wasibawifvp3n4.pdfIn PDF document text
    • https://faboduvo.weebly.com/uploads/1/3/5/3/135343103/posopupurafivibelad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402504/normal_6029a3130fdcc.pdfIn PDF document text
    • https://cdn.sqhk.co/sufokorume/XRpjahb/.pdfIn PDF document text
    • http://rolapisi.scienceontheweb.net/31888181216.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426279/normal_5fdd88cfdd8e8.pdfIn PDF document text
    • https://wovugozota.weebly.com/uploads/1/3/2/6/132695813/e3287a986c.pdfIn PDF document text
    • http://lg-supportteam.com/poweredge_r440_rack_server_datasheetti55e.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/will_no_game_no_life_ever_get_a_season_2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://japinoxizidunub.myartsonline.com/fudezazajemewapixabi.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_off0000cbcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBCB 5556 bytes
SHA-256: 7bb0e964386899031e2831ddbbd62a248661471cdc952b2d5516c07b55a81fac
font_01_sfnt_off0000de91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE91 12416 bytes
SHA-256: c32690463298e677c613b9511379c43a2ec15bbe5dfd42c9c45c42ca77ee9f27