Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1287823ad0009f0…

MALICIOUS

PDF

66.9 KB Created: 2021-02-12 10:32:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5b299b7055029c5d46d3be7e9b63d1f7 SHA-1: 7714a8670efb78f6ba16986e9d1e9beae8216410 SHA-256: d1287823ad0009f0dac024d9af380c2b074f2bcc750f60963d4f674da9507179
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://druttle.ru/123?utm_term=britax+marathon+70+g3+replacement+cover PDF link annotation
    • http://xplaintome.ru/dovebowusawekip02ng8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490738/normal_5fd96230817b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372074/normal_6010d5abe6ac0.pdfIn PDF document text
    • http://mozovurezet.iblogger.org/77176617566.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377662/normal_60005772eb00b.pdfIn PDF document text
    • http://malarusexomobaf.22web.org/44163265214.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417986/normal_5fea3bc328ceb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482880/normal_602264cfe714f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499351/normal_5ff66fe088d38.pdfIn PDF document text
    • http://reduslim-ordina.site/beethoven_piano_concerto_no_3tw0a1.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/makumapikeze/42393687804.pdfIn PDF document text
    • http://batuzotunar.rf.gd/90994341978.pdfIn PDF document text
    • http://sewuxuta.rf.gd/47884252521.pdfIn PDF document text
    • http://xavemiwikujuxuk.rf.gd/guide_to_effective_instruction_reading_4-_6.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/82103212162.pdfIn PDF document text
    • http://babudenipovux.rf.gd/vojonuzufutaralagon.pdfIn PDF document text
    • http://gesonumakokobal.rf.gd/pumpkin_carving_templates_witch.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/calendario_escolar_cyl_2019.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_off0000c517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC517 5732 bytes
SHA-256: b6f32121f9c10038504d657f90e9c04f1b0053fb407c92625878d2c90dbbfe6f
font_01_sfnt_off0000d889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD889 11160 bytes
SHA-256: 202d4676f614f8676aa64a5207ec30fb3674ae47107ff742995bf2e120f74a68