Malicious PDF — malware analysis report

Static analysis result for SHA-256 403f08aa79f38718…

MALICIOUS

PDF

73.8 KB Created: 2021-02-27 08:30:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: cd592a8a1e06fbbdd1cfe8bd0b266362 SHA-1: 246c71858e8284deaea952d442d4ceec4c12b9a4 SHA-256: 403f08aa79f387187abd6664d2a8ef1da0f644231a526b44a4d54ea6581d328c
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://lozipotod.ru/wb?keyword=how%20to%20adjust%20wahl%20senior%20clippers PDF link annotation
    • https://cdn.sqhk.co/xawobovuji/iiwhgaf/mojorusatafunuwuv.pdfIn PDF document text
    • http://sijubuwejipamun.mywebcommunity.org/something_like_an_autobiography_amazon.pdfIn PDF document text
    • http://lololoj.sportsontheweb.net/hp_photosmart_d110_printer_wont_print.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420930/normal_60312a3d8f81d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469836/normal_5fd133e882946.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/ehg88ia/87598415243.pdfIn PDF document text
    • http://sakhavto.ru/23260296369q2gal.pdfIn PDF document text
    • http://golden-charm.ru/berigatiranavkgmo6.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/ccXKehb/play_online_tennis_legends_2016_unblocked.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481065/normal_600ba27ae78ae.pdfIn PDF document text
    • https://cdn.sqhk.co/sipobufiw/get7Bhi/online_2d_rpg_games_free.pdfIn PDF document text
    • http://stnold.com/dekemulebef1pcw0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zakagoxufi.epizy.com/wofipof.pdfIn PDF document text
    • http://ludezowitupaxel.rf.gd/wexaguje.pdfIn PDF document text
    • http://sewasijibakel.epizy.com/83586238623.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_off0000e27b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27B 5292 bytes
SHA-256: 081ab77c61c4f3a10a5f05a8675f5ae30c35121cf57533c130bea80dbb2701ca
font_01_sfnt_off0000f487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF487 11072 bytes
SHA-256: e580d97c121409d003a4a3065571c90d6cdeb44d2135d639f38200021d086923