Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ebee80a891402f6…

MALICIOUS

PDF

71.7 KB Created: 2021-02-25 01:45:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d17be9591abf0db0780c503ec2848c8a SHA-1: 3980e4f11a005d9e973b07e0ee86da14aaa39885 SHA-256: 2ebee80a891402f6ac47e92e4ee4a0ffa6cdc6d12894f53c58b117a7211f43dc
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=galena+mineral+price In PDF document text
    • http://esclub.pro/roluxewewobupamimihrpgz.pdfIn PDF document text
    • http://nipokaxa.getenjoyment.net/how_to_install_fios_backup_battery.pdfIn PDF document text
    • http://afracheat9.xyz/dazevotefaw2ez.pdfIn PDF document text
    • http://kersita.space/um_ko_woon_ucsd_rate_my_professorxlk55.pdfIn PDF document text
    • https://bujasosepamus.weebly.com/uploads/1/3/4/6/134626994/gakoborokaloxabi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490529/normal_600e81aaa3b9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500186/normal_60343adba0f71.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454547/normal_5ff11db7c5547.pdfIn PDF document text
    • http://gejokakop.mygamesonline.org/how_to_change_txv_valve.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403141/normal_5ff5a59236a7a.pdfIn PDF document text
    • http://fasekafalig.scienceontheweb.net/when_worlds_collide_song_spongebob.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/dazutun/42331600348.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/pakistan_stock_exchange_today_dollar_rate.pdfIn PDF document text
    • http://gutekuretejapoj.onlinewebshop.net/45485973405.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/spicy_calamari_inkantation.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_off0000de0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE0D 4932 bytes
SHA-256: 9308cc41924c546ff3048f7035dfff7c78e5f79666f8c4ade29c0e5428f29566
font_01_sfnt_off0000eec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC1 10340 bytes
SHA-256: 18d0b23001ad8e40bdc71a3ed957238c8ca7945ad0461d5e6534a1034fe92876