Malicious PDF — malware analysis report

Static analysis result for SHA-256 17c054dc2d1e4621…

MALICIOUS

PDF

71.4 KB Created: 2021-02-15 15:09:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cd24354e0bea5315145715fb0922064d SHA-1: d9c7317c36c71e1961196c5b5a71eebfd47cfbcd SHA-256: 17c054dc2d1e4621c22fea6105a6d1d9250d24b7fe0c7ce788defbecfb011429
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wix?keyword=csula+spring+2020+dates PDF link annotation
    • http://smirno.life/fagixizodubarejakexonipild69u.pdfIn PDF document text
    • http://devgm.design/jabojogikakabugadijivosk8c69.pdfIn PDF document text
    • https://cdn.sqhk.co/nogedapuvul/ijfmiff/xovodinufupuruneri.pdfIn PDF document text
    • https://xarupome.weebly.com/uploads/1/3/4/4/134469096/3286482.pdfIn PDF document text
    • https://cdn.sqhk.co/gitovera/fjaQCBO/kavunumilozorubaxowabol.pdfIn PDF document text
    • http://bestpriceforukraine.xyz/pavotasetln57.pdfIn PDF document text
    • http://form-lnstagramcopyrightservice.com/pobujoraxujupofoxoti0owee.pdfIn PDF document text
    • http://mif-smeh.space/90127256102guzhd.pdfIn PDF document text
    • https://melinifijegor.weebly.com/uploads/1/3/4/2/134265386/b17e3dae7.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/hcFgirW/moto_racing_3d_game_download_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/fopujetoros/hhhaUjb/20404396112.pdfIn PDF document text
    • http://tdsevsvet.ru/77037599250epn6p.pdfIn PDF document text
    • http://es50off.pro/reference_manager_free_for_windows_102h1d6.pdfIn PDF document text
    • https://cdn.sqhk.co/sevafeluba/mgfgixC/outbreak_dread_the_undead_sc.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/aiaAjVi/advance_auto_parts_bangor_maine_phone_number.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_off0000dc03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC03 5308 bytes
SHA-256: 80c7e6a45e7c121bde8e8e8db31fd27ee935a7daff3483dd7de880bf2c9da0b5
font_01_sfnt_off0000ee16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE16 10196 bytes
SHA-256: 24fc89d0d50b257a78a88334cb1699f2d6b42e24c2ed31769ba0ba884d6fa5b6