Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1e0c7233bffbd45…

MALICIOUS

PDF

73.0 KB Created: 2021-02-18 03:45:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 53a61e57fb4dbda30b15d3cce0cee28c SHA-1: b5f5ade23987ba45ae407907a5eaf32646571068 SHA-256: e1e0c7233bffbd4503476a20216ffb6efd186b0327e0ab648ee968c87b81cd01
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://crophysi.ru/wix?keyword=3+year+old+pool+player In PDF document text
    • http://idealslimitaly.site/887912522194fmln.pdfIn PDF document text
    • http://vejofewi.iblogger.org/christmas_party_images.pdfIn PDF document text
    • https://cdn.sqhk.co/someteku/FKIiaC4/roads_of_rome_3_online_game.pdfIn PDF document text
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/dijofimokerepitutimnpkj6.pdfIn PDF document text
    • http://triple-doska6.club/assertive_examples_sentencest4xo1.pdfIn PDF document text
    • http://vsspb.ru/avg_antivirus_para_android_apk_fullhkw0q.pdfIn PDF document text
    • http://shoplus.info/zajiwikadatuvuxeri4wg1h.pdfIn PDF document text
    • http://sudesisobibimit.22web.org/gold_rush_season_9_episode_guide_uk.pdfIn PDF document text
    • http://vulewonatetil.22web.org/spotify_music_mac.pdfIn PDF document text
    • http://welepazabu.22web.org/como_atualizar_whatsapp_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vavogave.rf.gd/51189471041.pdfIn PDF document text
    • http://rebipilu.epizy.com/muxedo.pdfIn PDF document text
    • http://botasalipigu.epizy.com/whirlpool_refrigerator_manual_wrf535swhz00.pdfIn PDF document text
    • http://fipiwafupogo.epizy.com/nipikafibilunimaxil.pdfIn PDF document text
    • http://pelatid.epizy.com/week_5_nfl_injury_report_2019.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_off0000e37c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE37C 4948 bytes
SHA-256: 02f3365832fe8143d52a58cd4897a242d97f873b5697094881c1e1c7d7e5f182
font_01_sfnt_off0000f463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF463 10288 bytes
SHA-256: b918cb78958004fc13b078b8891651e69bfe99c9e6ef54458864f01ff4a39c9b