Malicious PDF — malware analysis report

Static analysis result for SHA-256 42ca7dc15eaefdf4…

MALICIOUS

PDF

74.7 KB Created: 2021-02-09 08:44:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 416308ec95492a913d5622c913854d71 SHA-1: 89745afc5ad2e1f5755739b0e888b3b5c4491c25 SHA-256: 42ca7dc15eaefdf4945f037c9f667f62b3761caf5d6df459bf9ed49a787adec9
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://leonvi.ru/wb?keyword=best%20manual%20breast%20pump%20nz PDF link annotation
    • https://cdn.sqhk.co/gogojelawov/icHjahh/21068275957.pdfIn PDF document text
    • https://cdn.sqhk.co/wisaputal/dRhgdij/buduneguvikujame.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483365/normal_60053ff6b4d95.pdfIn PDF document text
    • http://zupedaganivo.66ghz.com/gevakuganatagugakixe.pdfIn PDF document text
    • https://cdn.sqhk.co/dekaroku/jjdjjgw/34372184150.pdfIn PDF document text
    • https://cdn.sqhk.co/dilizilozok/jahhhbV/temple_final_endless_run_3_download.pdfIn PDF document text
    • http://salet.store/roman_numerals_2020_tattoo0bo2p.pdfIn PDF document text
    • https://cdn.sqhk.co/wulupumiwi/ivjhheg/long_nails_meme_poop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496380/normal_5ffa231cd2665.pdfIn PDF document text
    • http://vasetar.iblogger.org/90256604101.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://risawanidav.epizy.com/punapizujimobezew.pdfIn PDF document text
    • http://lakiver.epizy.com/training_certificate_templates_word.pdfIn PDF document text
    • http://nasewuji.epizy.com/alpona_hd_image.pdfIn PDF document text
    • http://gizejofak.epizy.com/35409461453.pdfIn PDF document text
    • http://gexazavere.epizy.com/87201218585.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_off0000e82a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82A 5204 bytes
SHA-256: e684361b168f052ab5ebbccab0a60d9e1897d5140ffe82730fb7964f45dc2e42
font_01_sfnt_off0000f9c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C1 10808 bytes
SHA-256: 3b9b3b80b233af9b9119985ad62cf388d33f5802d752dc4a2f2c20b35bacd2eb