Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e63728217e5b14d…

MALICIOUS

PDF

71.6 KB Created: 2021-02-28 10:17:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4c74f3170820f4314256a38af9b4c8e1 SHA-1: 0615a5c6d528ebceb57b2704c82116e9302b1cd6 SHA-256: 2e63728217e5b14dc18733f138e940d2212f75b8b0808b42cb2d402f47c092cd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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://botokaw.ru/award?keyword=lg+washer+not+draining+well PDF link annotation
    • https://cdn.sqhk.co/zetuzire/ijGggjb/gewivebezuribudawa.pdfIn PDF document text
    • https://cdn.sqhk.co/remezebona/jbrWm7p/hydro_dipping_film_suppliers_in_south_africa.pdfIn PDF document text
    • https://lemefiware.weebly.com/uploads/1/3/4/0/134017231/1157384.pdfIn PDF document text
    • http://navevukosuso.mypressonline.com/xajasipemibololupubureliv.pdfIn PDF document text
    • https://cdn.sqhk.co/xidosisew/hehgFkk/best_android_emulator_for_windows_10_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vasibejovej/dIgglqh/72428381760.pdfIn PDF document text
    • https://rizebilawi.weebly.com/uploads/1/3/0/8/130814716/540592690d.pdfIn PDF document text
    • https://cdn.sqhk.co/rirakibugo/hjepiet/51890631497.pdfIn PDF document text
    • https://masezinonorokun.weebly.com/uploads/1/3/4/6/134685416/a133634945e0c1.pdfIn PDF document text
    • http://realnoe-obshenie.online/sharpen_pocket_knife_with_sandpaperriv2z.pdfIn PDF document text
    • https://cdn.sqhk.co/sukurorezib/E0ieePA/mp3_cutter_and_ringtone_maker_app_download_uptodown.pdfIn PDF document text
    • http://armada.technology/brian_tracy_best_sales_bookswoeaf.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/welanisowari/childhood_bilingualism.pdfIn PDF document text
    • http://redifigikutusoj.myartsonline.com/fundamentals_of_computer_course_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/xapomiranujatuverofole.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_off0000dbdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDF 5120 bytes
SHA-256: f32ecc22a1fbff7772278143d2ed74c2e6620fe27e9cd048c9c6f27d76f9ed81
font_01_sfnt_off0000ed57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED57 10668 bytes
SHA-256: 5ccef9a47fa7f71e1cbe0735ea71142d6b09d8617d47a02e8bfed5ed4ed4eaed