Malicious PDF — malware analysis report

Static analysis result for SHA-256 af1e034e989716c5…

MALICIOUS

PDF

70.1 KB Created: 2021-01-19 00:02:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 1bff385d85a4aa4e34c3a1609ce9ef50 SHA-1: 6ea2df7c14159358a9f0f0c25fbab61f7ed0849c SHA-256: af1e034e989716c5494da86925733f902fcf98832b669e1e427ffd6e395ea8e7
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://sasadonosixez.weebly.com/uploads/1/3/5/3/135332683/042e9d59.pdf.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/123?utm_term=chicas+cabaret+houston+tx+77037 PDF link annotation
    • https://cdn.sqhk.co/kewesowovim/jbOjaVr/57901573877.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/dihVfij/wepafumurixa.pdfIn PDF document text
    • https://site-1177224.mozfiles.com/files/1177224/fovixikifunigisizegalaxo.pdfIn PDF document text
    • https://site-1179415.mozfiles.com/files/1179415/seturoxirutido.pdfIn PDF document text
    • https://site-1171847.mozfiles.com/files/1171847/hazardous_waste_report_management_method_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/dupeguwova/bbhc9hF/smart_connector_ipad_air_3.pdfIn PDF document text
    • https://cdn.sqhk.co/kulizuxekume/hbDLeQo/hokey_pokey_elmo_recall.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372702/normal_5fc2ff8447a5a.pdfIn PDF document text
    • http://rejuxipo.iblogger.org/bts_anpanman_official_mv.pdfIn PDF document text
    • https://sasadonosixez.weebly.com/uploads/1/3/5/3/135332683/042e9d59.pdfIn PDF document text
    • https://site-1247550.mozfiles.com/files/1247550/din_en_iso_12100-_1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zijomofi.epizy.com/chameleon_baritone_sax_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/33814979633.pdfIn PDF document text
    • http://faberaladaruz.epizy.com/gresham_house_strategic_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/kiwib.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_off0000d32f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD32F 5352 bytes
SHA-256: 98e7a3906a10ed5f9ec763c5aa5e1b0b6e2fcb62ce4b4a9f87f1ba6f169caa12
font_01_sfnt_off0000e55f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55F 11284 bytes
SHA-256: 56f613e51510518137dc3c2704a4bb8058128da7e4d1aa38102def0088434292