Malicious PDF — malware analysis report

Static analysis result for SHA-256 146cd39488a80d8b…

MALICIOUS

PDF

76.1 KB Created: 2021-03-23 08:57:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0faecf2c6ec156fa165b7cec1e745bed SHA-1: eb8c6bd86c56aad37f80a0020592a69b4c88d024 SHA-256: 146cd39488a80d8b5b06ef184b024cf24ffbf1076264a3806a7ca9b13d9decf3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wix?keyword=duskwalker+pathfinder+2e PDF link annotation
    • https://cdn.sqhk.co/kokademesuz/j2hbcOp/fun_facts_about_halloween.pdfIn PDF document text
    • https://cdn.sqhk.co/gixirunizem/ifpQg0Y/3d_inventor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481059/normal_6015af8dd6633.pdfIn PDF document text
    • https://cdn.sqhk.co/jamosolil/giZeDja/pocket_racing_drift_3d_unlimited_money.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484355/normal_5fcbc5f0102ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477409/normal_6056e6d26c65e.pdfIn PDF document text
    • https://cdn.sqhk.co/sivadapexiri/gNii0Ar/unlimited_tok_views.pdfIn PDF document text
    • http://gadetebes.sportsontheweb.net/lapufurigipofonoleweke.pdfIn PDF document text
    • https://xugubevowasisof.weebly.com/uploads/1/3/4/8/134885616/jedoginumot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445882/normal_6048a2245e2ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415937/normal_602005965cea8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411691/normal_604886c978ada.pdfIn PDF document text
    • http://maxobujixeweden.sportsontheweb.net/baixar_carrie_a_estranha.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495839/normal_5fc7b2ee7806c.pdfIn PDF document text
    • https://mifopezuzata.weebly.com/uploads/1/3/4/4/134484464/vowonerepetiwu-tigijuzefi.pdfIn PDF document text
    • http://xikapajami.mypressonline.com/adrenalina_efeitos.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/e1eb4c46-79a7-48fa-8c7c-7ec070dd814d/91833465648.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e710f208-829c-4883-8bb0-24d933042fbb/royal_1620mx_shredder_manual.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_off0000eb8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8D 5416 bytes
SHA-256: 45170481c035874d26d2b5f49157138d8f546a14af8836f934f3c4f7ed7f2425
font_01_sfnt_off0000fe17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE17 10524 bytes
SHA-256: 2fa0ded3a5f7d7a399c203b3d81f9bd757cfcb5a2b4c9b747e466f8f50d8cedc

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