Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8e4ddd7bcec3882…

MALICIOUS

PDF

71.5 KB Created: 2021-02-12 04:36:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 247c3e3ff6298e39c3637633aa312ca5 SHA-1: 359f2f07b6277198d8ebadb369a26537d5603d47 SHA-256: e8e4ddd7bcec3882ba015ab7530e10c8fe11a1802b08b0010c1711b8f2ca6dff
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=what+is+danielle+cohn%2527s+boyfriends+age PDF link annotation
    • https://vamalogobiw.weebly.com/uploads/1/3/4/6/134696595/refojiloxevajedix.pdfIn PDF document text
    • http://gta-msk.ru/954328248136pbsy.pdfIn PDF document text
    • http://natnat.fun/barry_eisler_el_destacamento_e-los_l9bsjp.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxofidipo/idjfheg/27956811572.pdfIn PDF document text
    • http://blacklaser.ru/durokf7we3.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuronufepu/RrCghha/euro_truck_driver_2_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/bopesajan/hj7hevN/nixovas.pdfIn PDF document text
    • http://silkhfig.bid/57171064053kfmmw.pdfIn PDF document text
    • https://cdn.sqhk.co/tijatabov/i8Djfid/dokus.pdfIn PDF document text
    • https://xesusilinani.weebly.com/uploads/1/3/0/8/130874458/suxesokur.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/genedesowul/gozojolam.pdfIn PDF document text
    • http://tuzipani.rf.gd/dogfight_1942_ps3_trophy_guide.pdfIn PDF document text
    • http://pofepopogako.rf.gd/lademokegasajaziwela.pdfIn PDF document text
    • http://fekamenuzexogam.epizy.com/towopabezeloxa.pdfIn PDF document text
    • http://sabukizazuse.epizy.com/gantt_chart_project_management_template._xls.pdfIn PDF document text
    • http://podugidak.epizy.com/difference_between_monocot_and_dicot_seeds.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_off0000dbc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC6 5572 bytes
SHA-256: 5820463a5fe9e33897565ae2391b98c703e7ce58ad2f649b1c883b971e9ffb18
font_01_sfnt_off0000eecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEECD 9992 bytes
SHA-256: 2491a14f9fb3c9cdf453d1ab9e7fecac1b4090e0a9d5d92195f843a5b0d78101