Malicious PDF — malware analysis report

Static analysis result for SHA-256 0644724faae934f5…

MALICIOUS

PDF

72.9 KB Created: 2021-01-31 03:06:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dfd86b4181749d406e9bb60b6d1e48d3 SHA-1: 5058794a9475dcc483969c44417f74ba198afcf6 SHA-256: 0644724faae934f5e6aabfcc0ce30c96a0ffc9d3e013e214bda3efcc84c80170
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://leonvi.ru/wb?keyword=game%20boy%20ringtone%20for%20iphone PDF link annotation
    • https://cdn.sqhk.co/xedogigiloli/jckgcm9/vepekomo.pdfIn PDF document text
    • https://cdn.sqhk.co/gokovolasula/5hbEPjf/woodworking_table_bench_dogs.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/iiegcgh/wallpaper_free_download_for_desktop_windows_8.pdfIn PDF document text
    • http://ehaberdevlet.com/gakorebasuap1be.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwozavenu/jf8gjMW/nowebowululisidobuwom.pdfIn PDF document text
    • http://cadenalia.com/24313578458e0i26.pdfIn PDF document text
    • http://copyrightsupport-ig.com/63248031142tf6ko.pdfIn PDF document text
    • https://cdn.sqhk.co/zowesifona/jaJvzy0/destiny_2_companion_app_fireteam_full.pdfIn PDF document text
    • http://mikrotikwizard.com/bobby_malayalam_full_movie_free8gj09.pdfIn PDF document text
    • https://cdn.sqhk.co/zuvomafoda/gjfhjbd/minecraft_egg_wars_server_turk.pdfIn PDF document text
    • https://cdn.sqhk.co/zodozane/ihgTjiI/nolanugitanilalat.pdfIn PDF document text
    • https://cdn.sqhk.co/rurizibaxami/fgd9jeV/vimoxumawititumamepuve.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://deketinak.rf.gd/adobe_after_effects_project_files_free.pdfIn PDF document text
    • http://laniferes.epizy.com/satyanarayana_biochemistry_free.pdfIn PDF document text
    • http://zuxulabawiba.rf.gd/zotugon.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_off0000ded7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDED7 5376 bytes
SHA-256: 90567491d05d8f880a0a196712fbe0faeb4fd14b3c3357338ca8de4dc250c882
font_01_sfnt_off0000f108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF108 10868 bytes
SHA-256: 5761d33150f1abba95e518055e9552677bf32837611463d44d107b484616ebbd