Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d5de2ef57bec6e5…

MALICIOUS

PDF

72.5 KB Created: 2021-03-04 19:44:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a93f99584f0c777e7c3937c054a7eba8 SHA-1: ec942b0502f6c7185d8d339447a997106c15efdf SHA-256: 3d5de2ef57bec6e5d8a5f6dca55d45428c40447ca888e287122e8c2490f3963c
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://dafemum.ru/wix?keyword=ms+access+2013+bible+pdf+free+download In PDF document text
    • https://xagomutub.weebly.com/uploads/1/3/4/3/134321984/vapozokifawimobuxol.pdfIn PDF document text
    • https://vobilazi.weebly.com/uploads/1/3/5/3/135300702/a82dabc3120d9.pdfIn PDF document text
    • https://cdn.sqhk.co/salenasova/gp5id5L/roxegexijosajixaforafu.pdfIn PDF document text
    • http://logowiwubapokar.iblogger.org/91716869318.pdfIn PDF document text
    • https://cdn.sqhk.co/bezakebijuk/bjfhaje/tile_ideas_for_kitchen_island.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/iwS6msn/58010097546.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/mgcijat/lep_s_world_3_mod_apk.pdfIn PDF document text
    • https://zudamuberul.weebly.com/uploads/1/3/4/8/134854759/77414.pdfIn PDF document text
    • https://cdn.sqhk.co/rekubapapup/imMhfIx/how_to_get_paper_airplane_glider_fortnite.pdfIn PDF document text
    • http://manekobe.22web.org/sun_movie_free.pdfIn PDF document text
    • http://lisulav.iblogger.org/89718774815.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/zekurupijubozujomipolobel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ebadeb5-f909-4073-bfe6-368e489ef0d3/percy_jackson_and_the_olympians_5_book_paperback.pdfIn PDF document text
    • http://luboligivite.epizy.com/fegegezujovubapu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c51ba33-96aa-455b-8d69-defe77d51877/xiravugejomefa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6b44374-088c-4f4a-a601-bd5205bae563/sorry_fire_and_ice_instructions_hasbro.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/corrugated_metal_pipe_installation_guide.pdfIn PDF document text
    • http://pulizot.rf.gd/mujikug.pdfIn PDF document text
    • http://gijafusatuvaxoj.rf.gd/sokaju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3662e395-367f-43a0-96b8-ffd009a06374/92150351853.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/512da0fa-9e7c-420d-a09f-9b5f21645eb3/sears_water_softener_installation.pdfIn PDF document text
    • http://nuzejotegaze.rf.gd/how_are_i_spy_books_made.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_off0000dd20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD20 5876 bytes
SHA-256: ab1ff71b922f31df6d981e77ea79e9a54da7da506f0a64ffd0e347357a5e89df
font_01_sfnt_off0000f142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF142 10412 bytes
SHA-256: dde8ab932337fc9e4819c07e5baf772be4c9cbefc63430bdc5745a777614cb1b