Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bcd8f1c205869a8…

MALICIOUS

PDF

71.1 KB Created: 2021-02-16 05:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 89db0106a19088045af939883738dd26 SHA-1: f173e2a7cb6767ac520347354b5890bc8ced889c SHA-256: 1bcd8f1c205869a8b984c889585dc6313bbdd6f0849bc44b244b640269f25ec2
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://maypoin.ru/wix?keyword=syma+x8g+manual PDF link annotation
    • http://instgrmmverifiedbadge.com/45279781181fuyn7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391898/normal_6015d5b55bdce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477401/normal_5fedfdf30d56e.pdfIn PDF document text
    • http://accface.in/osmosis_and_diffusion_review_sheet228i9.pdfIn PDF document text
    • http://ersoil.fun/witegazzvuy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461505/normal_5fd6a9f0b3ebc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369166/normal_5fcda05ca30f1.pdfIn PDF document text
    • https://cdn.sqhk.co/wijelukifap/gx9hG7C/annoying_sounds_roblox_song_id.pdfIn PDF document text
    • https://cdn.sqhk.co/gunuzuli/UAoycgi/ninja_blender_1200_replacement_pitcher.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/wegugus/alkuu_oku.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/stroke_assessment_form_physiotherapy.pdfIn PDF document text
    • http://zenuvivasefum.epizy.com/5286072464.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/jadadozepumemiwo.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/92140192990.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/christmas_tree_vector_art_free.pdfIn PDF document text
    • http://segudufarus.epizy.com/sebalu.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/dsd_tech_hc-_05_datasheet.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_off0000d989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD989 5196 bytes
SHA-256: 03023fe8f535a2ab711ac2db42e83b481433a2d273d4b85f6e55058b1c3ebd9b
font_01_sfnt_off0000eb2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB2C 10908 bytes
SHA-256: e77be41ff51f6237933f3f43e9f5099fce0cf5b55a33ab4c4b12838053260e3d