Malicious PDF — malware analysis report

Static analysis result for SHA-256 64da9a7053a72cdd…

MALICIOUS

PDF

70.5 KB Created: 2021-03-03 05:42:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4b1e04b45f6dcf1455693bafb579ad20 SHA-1: c03ea02ee9f226bbbe98304be29f36538295aa0c SHA-256: 64da9a7053a72cdd97388e69d240e0e1624a89f85a8c245302622b395b6b9915
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://midufefew.ru/wb?keyword=compaq%20presario%20cq57%204gb%20ram PDF link annotation
    • http://jiloxoxono.iblogger.org/duwaxitutotovezipo.pdfIn PDF document text
    • http://prodive.su/56965254668l2dry.pdfIn PDF document text
    • http://gogejevi.iblogger.org/mamawusaken.pdfIn PDF document text
    • http://nedugitovo.iblogger.org/wofusibodizuvumo.pdfIn PDF document text
    • http://kudorifet.22web.org/12434132486.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dufijofitaj.epizy.com/1452947095.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/medicine_management_guidelines.pdfIn PDF document text
    • http://pubitawiwinas.rf.gd/sijusesuzukoninuzafime.pdfIn PDF document text
    • http://vekaxuluxixabev.rf.gd/lupirujanuxu.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/bikas.pdfIn PDF document text
    • http://vejesigivilowen.rf.gd/68485359514.pdfIn PDF document text
    • http://gefofezas.rf.gd/arcsight_console_admin_guide.pdfIn PDF document text
    • http://vebuluxuj.rf.gd/fapabufemi.pdfIn PDF document text
    • http://faduzidivatakid.epizy.com/sofefamemorotufa.pdfIn PDF document text
    • http://padapafodimaf.rf.gd/habitat_organic_cotton_sheets_canada.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_off0000cdea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDEA 5684 bytes
SHA-256: a657120c3c8efcebed78581b1202f442b049ebe5ca588dcc8070edb74d1e685e
font_01_sfnt_off0000e12f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE12F 14260 bytes
SHA-256: 1551267e124d7033323353c0eb94461d061fe0e91476149dfd5191e5fdb1d5f1