Malicious PDF — malware analysis report

Static analysis result for SHA-256 537e027645efe6a6…

MALICIOUS

PDF

67.8 KB Created: 2021-03-03 21:24:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 95bddc32420225e21b7375b60dbf5706 SHA-1: 361ecb5bd7e6ff7c6f4c9e46727b443a405ae72b SHA-256: 537e027645efe6a67ecbb16432ad33f3f7914ddc1d8d41c6a299242b3d844e81
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://bologen.ru/award?keyword=lords+of+chaos+streaming+hd PDF link annotation
    • https://cdn.sqhk.co/guvevifowo/ghhehhc/ping_pong_games_unblocked.pdfIn PDF document text
    • http://gofadivus.mygamesonline.org/dnd_5e_warlock_expanded_spell_list.pdfIn PDF document text
    • http://ostanni.fun/durga_saptashati_in_telugu_free_downloadtzpv2.pdfIn PDF document text
    • https://cdn.sqhk.co/rivotoxupow/Qzhioje/95884509354.pdfIn PDF document text
    • https://cdn.sqhk.co/geroterunetu/hhLifzG/house_painting_cost_melbourne.pdfIn PDF document text
    • https://cdn.sqhk.co/jokawefezo/Ndfhahg/mt_rushmore_weather_in_december.pdfIn PDF document text
    • http://wimuzawoxi.getenjoyment.net/short_note_about_school_life.pdfIn PDF document text
    • https://cdn.sqhk.co/xonepogafix/Ajjhcij/beholder_2_lite_walkthrough.pdfIn PDF document text
    • https://dulewidojupetor.weebly.com/uploads/1/3/2/6/132695372/d74154b2b2e4b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378852/normal_5fd109906c7e3.pdfIn PDF document text
    • https://cdn.sqhk.co/zenekukera/ijiduRq/endless_frontier_online_idle_rpg_games.pdfIn PDF document text
    • http://doorstepcomputers.com/ruregexanugebidusokujl53ms.pdfIn PDF document text
    • https://cdn.sqhk.co/rirodute/igiCggj/the_world_s_not_falling_apart_lyrics.pdfIn PDF document text
    • https://binazinir.weebly.com/uploads/1/3/4/1/134108718/dalurufilo-tubiv-xoxupopubukiwot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://keregimuw.onlinewebshop.net/tobumodobupukikadufavutep.pdfIn PDF document text
    • http://tiwatimab.atwebpages.com/jitoxiwujapiniv.pdfIn PDF document text
    • http://sazasewugekupej.onlinewebshop.net/ue_boom_2_speaker_not_charging.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_off0000cbbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBBB 5344 bytes
SHA-256: ed0de28885f7f78a661f24ff8e1f203a05293ec0abf593bf23be517f4ce24b93
font_01_sfnt_off0000ddbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDBF 10636 bytes
SHA-256: 0f7c03d2e722148bb097326256bc3e9ff8ea75c06744a708088979833cc7ae1a