Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e778fc1f6aca1ad…

MALICIOUS

PDF

69.3 KB Created: 2021-03-10 12:34:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 82d85738ff7b99d1aa25c1033bd51dfe SHA-1: 5a9115718bafb08321f574256da7d61b71432960 SHA-256: 8e778fc1f6aca1ad8e27e140ef246c48e4152e73ade5910b01fdf45a48d8316b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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=biomass+fuelled+power+plant+seminar+report+pdf PDF link annotation
    • https://pumaxodevuk.weebly.com/uploads/1/3/1/8/131872084/xerilirodivek.pdfIn PDF document text
    • http://swiss-gear-top.xyz/55997486102aiqq.pdfIn PDF document text
    • http://ayazshabutdinov.club/accident_report_writing_in_englishrv44p.pdfIn PDF document text
    • http://naturalik.fun/plan_anual_trabajo_comision_tecnico_pedagogicowqunj.pdfIn PDF document text
    • https://jujuguzifise.weebly.com/uploads/1/3/5/2/135299578/xizonewufojitizesu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409417/normal_5fccbdcbdf0c2.pdfIn PDF document text
    • http://kieverts.xyz/hamlet_full_text_downloaducs0h.pdfIn PDF document text
    • https://vimopoferozure.weebly.com/uploads/1/3/4/8/134858925/7939304.pdfIn PDF document text
    • http://devgm.design/bexuvivedidumosoxazekoep4r8.pdfIn PDF document text
    • http://sellforce.ru/at_t_tv_customer_servicep044k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500679/normal_5fdd8404a36bf.pdfIn PDF document text
    • http://greatholl.com/winafejisisawodufufkz4s3.pdfIn PDF document text
    • http://gatorama.space/47856922036nbfnc.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/45e0acb6-de89-4402-b4a5-4d7b4432518e/ottlite_led_white_desk_lamp_with_clock_and_wireless_charging_station.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c19c7fa-c459-4645-8131-af42e9f1a29c/22432330881.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2284901d-2b72-45ac-81c5-9ea2cfbd6621/how_to_update_grub_config.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e22c403-7c48-4c88-9125-f4a25957c69f/what_is_ethics_education_in_nursing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4008bf0-e50d-4134-8c0c-792829154ecf/economic_development_jobs_salary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a48ffc56-8637-41ec-9f85-a0bddbf2427e/what_is_interpersonal_conflict_in_nursing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd7e86a9-ee71-4d17-854e-f9517f2f3093/multiplication_times_table_chart_1-12.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c5ca257-a940-486e-a2ee-59db321fc0b4/lunukizagovuxape.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_off0000d131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD131 5328 bytes
SHA-256: fc670e21c33217810ad47185e7df9066ee8a22096c5f5d55c4389cf2c36dc8c0
font_01_sfnt_off0000e347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE347 10768 bytes
SHA-256: c17012e7dded8f5bbb394b52240268ed6485d112d3525af7bdc5ace2bac1064f