Malicious PDF — malware analysis report

Static analysis result for SHA-256 e69acd5967d1bc84…

MALICIOUS

PDF

68.6 KB Created: 2021-03-01 04:26:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d1f23e489907964f1c97e9f6d948daca SHA-1: 62678e409f6cba667e31871ba66a160129e8d177 SHA-256: e69acd5967d1bc8453a3f468a962ab28a0a9bda03cb338a8460b214edb4b081c
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://crophysi.ru/award?keyword=how+to+get+dyson+owner+rewards+code+reddit In PDF document text
    • http://forovasax.medianewsonline.com/32809843651.pdfIn PDF document text
    • http://fijubigatusurov.scienceontheweb.net/39267812748.pdfIn PDF document text
    • http://kiwenalod.medianewsonline.com/19983814081.pdfIn PDF document text
    • http://bopolegokuruwe.22web.org/32973340845.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413111/normal_5fe38d24966dd.pdfIn PDF document text
    • https://cdn.sqhk.co/dusujukakal/iGJr81H/33197481380.pdfIn PDF document text
    • http://lupelisizi.medianewsonline.com/sovozipodiz.pdfIn PDF document text
    • http://finonit.mypressonline.com/dogoxenijol.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/vukusa/tencent_gaming_buddy_mobile_legends.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/25992028942.pdfIn PDF document text
    • http://lisunamubeso.epizy.com/41311577693.pdfIn PDF document text
    • http://dapukagizepor.rf.gd/37939609836.pdfIn PDF document text
    • http://regujivabi.rf.gd/kidnapping_stella_imdb_parents_guide.pdfIn PDF document text
    • http://getojigukas.epizy.com/attack_on_titan_xbox_one_digital.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/giwodex.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/senarai_website_movie_free.pdfIn PDF document text
    • http://momugegunimex.rf.gd/39687804470.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_off0000cf3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF3E 5232 bytes
SHA-256: 624b3221970ed5924b5e228f87447b0d20cadf210a0377846316981772194c44
font_01_sfnt_off0000e133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE133 10492 bytes
SHA-256: 00bd872c3959ed6b366298220b63280a827be5ed60a39d4f07917d44848cf396