Malicious PDF — malware analysis report

Static analysis result for SHA-256 6354e776c6f573ec…

MALICIOUS

PDF

72.2 KB Created: 2021-03-03 14:24:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d0de70276a2231a7596bf2e9fa33e705 SHA-1: fe6c4af3797c204588f53e85b9c6e17c9662bb97 SHA-256: 6354e776c6f573ece1ecf8bdf35d3721be0aff26453750d44ebb32799f9b038f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://fokemale.ru/award?keyword=cathedral+raymond+carver+symbols PDF link annotation
    • https://cdn.sqhk.co/kosifodalab/jgjeJha/rukazulapek.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/hIdHyIi/saziger.pdfIn PDF document text
    • https://cdn.sqhk.co/reparepoki/zMEjdOC/zesetudakukalogal.pdfIn PDF document text
    • https://cdn.sqhk.co/fifapupifig/gjsayhj/world_war_z_crossplay_icons.pdfIn PDF document text
    • https://cdn.sqhk.co/buruvalufe/jJAShda/7294781029.pdfIn PDF document text
    • https://pufotesur.weebly.com/uploads/1/3/1/3/131378771/voguwuwimoxi.pdfIn PDF document text
    • https://kaxojolomo.weebly.com/uploads/1/3/4/8/134885197/ccbde0.pdfIn PDF document text
    • http://juwoniki.getenjoyment.net/chapter_12_ap_chemistry_test.pdfIn PDF document text
    • http://wijetaz.mypressonline.com/aircraft_maintenance_engineering_salary_per_month_in_dubai.pdfIn PDF document text
    • http://vofufime.mypressonline.com/how_much_does_a_life_coach_certification_cost.pdfIn PDF document text
    • https://kuvitoguke.weebly.com/uploads/1/3/0/8/130813837/494388.pdfIn PDF document text
    • https://cdn.sqhk.co/nusatabi/KgikjiH/warriors_game_tonight_channel_comcast.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/3_letter_airport_codes_nz.pdfIn PDF document text
    • http://mizejodaf.mywebcommunity.org/watch_twilight_online_download.pdfIn PDF document text
    • https://cdn.sqhk.co/winudesuw/w6Hiiji/lexikidizemarof.pdfIn PDF document text
    • http://nupesupo.mypressonline.com/samsung_ml-2165w_software_download_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/hdAWtwv/girosobus.pdfIn PDF document text
    • https://wumigativagulam.weebly.com/uploads/1/3/1/6/131637174/zedoten.pdfIn PDF document text
    • https://komijeji.weebly.com/uploads/1/3/1/6/131606126/pijafofomopa_xaparemaxuj_jalow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wififeju.atwebpages.com/89262398091.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_off0000deeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEEB 5388 bytes
SHA-256: 6d7dcbe48c32fa59b7372975248bb41f62eed403389933d9b80f84c62b837368
font_01_sfnt_off0000f116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF116 10060 bytes
SHA-256: 118896bbb1329499ab0c6f44842b610e8ceb2711bfd5a031b13c88bc8c83c5a9

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