Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2db07e1244d93b2…

MALICIOUS

PDF

74.3 KB Created: 2021-04-06 00:02:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 6d39fde1c002215faabe9d3016da0827 SHA-1: c351d40de6e0a69b0c2dbf7f77ff8ef96e266fdd SHA-256: d2db07e1244d93b2b03811b043da4723598a9c821642e9e430eaf8a209805e2c
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs, many pointing to disposable hosting, suggesting a link farm designed to redirect users to potentially harmful content. The presence of a keyword in one URL ('kingdom+lands+mod+apk') implies a lure for users searching for specific software, which is a common phishing tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=kingdom+lands+mod+apk PDF link annotation
    • https://cdn.sqhk.co/feketukadoz/jO3hhji/zozapovetidosapotuvore.pdfIn PDF document text
    • https://cdn.sqhk.co/mivijigonof/eba3O1b/2_dots_on_ultrasound.pdfIn PDF document text
    • http://felidefewipikig.22web.org/niviboloxofagemogorakebo.pdfIn PDF document text
    • https://cdn.sqhk.co/tamoravuwera/ijnjchf/alabama_road_trip_route_planner.pdfIn PDF document text
    • http://workshop-fb.ru/2e_chronomanceruzu21.pdfIn PDF document text
    • http://mini-camera-super.club/23528967985uql1v.pdfIn PDF document text
    • http://com-servers.online/maps._me_offline_maps_travel_guides_navigationn6rcx.pdfIn PDF document text
    • https://cdn.sqhk.co/karewura/irrHjem/ganevavupaligom.pdfIn PDF document text
    • https://cdn.sqhk.co/lojavowi/hyVjdhb/adrenalina_injetavel_bula.pdfIn PDF document text
    • http://vitrinachel.ru/discipline_and_punish_asa_citation21nxm.pdfIn PDF document text
    • https://cdn.sqhk.co/naludibeg/0htiajh/life_simulator_app_game.pdfIn PDF document text
    • http://usacreditmonitoring.info/sharp_atomic_weather_station_resetneszl.pdfIn PDF document text
    • http://dubiniba.iblogger.org/bharat_acharya_book_8051.pdfIn PDF document text
    • http://reduslim-ordina.site/32328779815s9qzc.pdfIn PDF document text
    • http://unosital.space/los_feminismos_ante_el_neoliberalismomww9o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d92196c-1fcc-49bc-973b-64e302f533d4/95209499367.pdfIn PDF document text
    • http://kepirodineloga.epizy.com/ashokan_farewell_piano_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11750f33-c0a5-4cf0-898b-33e9f9279f86/hp_designjet_500_plus_treiber_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f5a9b64-b60b-4bbd-ab97-d7aceb8e2fe0/overlord_light_novel_art.pdfIn PDF document text
    • http://xojesulelu.rf.gd/industria_alimentaria_definicion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/417f468f-e2ae-45db-8363-fc8dd80aa657/presentation_zen_slides.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_off0000e577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE577 5216 bytes
SHA-256: db432ba8a435946943579322139efa968fc11c595f304c2cdbd3df8a2b83fb23
font_01_sfnt_off0000f72b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72B 10428 bytes
SHA-256: 00ac2705cd9682ba23e0c4d5e01b799ce0d57c2a05fe8fcb3cf6bf8d5aff8964

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