Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed459b0d981f16e…

MALICIOUS

PDF

71.9 KB Created: 2021-02-12 09:39:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 36a923ee036444af7de472876029bebe SHA-1: cd40020bf42e1de1929088dc791c4cee1a19ff18 SHA-256: 1ed459b0d981f16ed2e3cf5d33d01902735920009cc7316958e1da38f4b6c7c8
134 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/wix?keyword=vsco+mod+apk+for+pc PDF link annotation
    • http://1xbet-football.fun/descargar_arcade_game_emulator_apkcpglb.pdfIn PDF document text
    • https://sodefabufu.weebly.com/uploads/1/3/4/4/134473286/nufawuzizede.pdfIn PDF document text
    • http://gladkoe-telo.xyz/lokotasxtb9u.pdfIn PDF document text
    • http://puwonasomoso.22web.org/gojosekewubojetev.pdfIn PDF document text
    • https://cdn.sqhk.co/dofexoxev/jaFIgib/dupupibi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380859/normal_602492e9472ee.pdfIn PDF document text
    • https://cdn.sqhk.co/mibemofega/Nggr4je/wikuwezutitilipajajofutep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rijogutigoxek.epizy.com/bt_phone_number_to_report_a_fault.pdfIn PDF document text
    • http://puwagof.rf.gd/broiler_farming_project_report_1000_birds.pdfIn PDF document text
    • http://fofilelajisemap.rf.gd/lenovo_thinkpad_x1_yoga_spec_sheet.pdfIn PDF document text
    • http://zowetilazu.rf.gd/43256828228.pdfIn PDF document text
    • http://guxasimedoki.epizy.com/63158488691.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_off0000de95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE95 5296 bytes
SHA-256: a26eb92c5af24c99484ae463920351a9f5c885a59163d4c223212c338258860b
font_01_sfnt_off0000f08e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08E 10248 bytes
SHA-256: d9f7aabcc16185f86eb8323659c3d9a530b698428ddda82c6975190571193f0b