Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ff157b08a2ecd2f…

MALICIOUS

PDF

85.7 KB Created: 2021-05-19 04:20:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 68bdfc5696de93f9a97ebdecf29a6c5b SHA-1: 937abf6995bd6406421b9cfd57c7b360c5a3e281 SHA-256: 5ff157b08a2ecd2f0630e3ab7dec16d4fbf029912b239c3786a2f5f8afb25f70
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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/strik?utm_term=el+hombre+m%25C3%25A1s+rico+de+babilonia+por+george+s+clason+pdf PDF link annotation
    • https://gekibevuzoz.weebly.com/uploads/1/3/4/5/134503907/6854938.pdfIn PDF document text
    • http://zonetufe.iblogger.org/esc_stemi_guidelines_2017.pdfIn PDF document text
    • https://likudone.weebly.com/uploads/1/3/4/6/134681098/9196115.pdfIn PDF document text
    • https://ponosozuvovisu.weebly.com/uploads/1/3/4/6/134668850/jegewexo.pdfIn PDF document text
    • https://doliwejivus.weebly.com/uploads/1/3/4/3/134353379/763980e8aaa83.pdfIn PDF document text
    • https://rawubewo.weebly.com/uploads/1/3/1/4/131405976/darezekoxobez_vubonanazupubu.pdfIn PDF document text
    • https://xexemisekugo.weebly.com/uploads/1/3/4/6/134679242/393cc.pdfIn PDF document text
    • https://ruzuxopamekegi.weebly.com/uploads/1/3/4/7/134748505/3653635.pdfIn PDF document text
    • https://gijagexerifaru.weebly.com/uploads/1/3/5/3/135322880/denovogu.pdfIn PDF document text
    • http://pisobadepujo.22web.org/51100076485.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://loxulipusamirol.epizy.com/adobe_photoshop_classroom_in_a_book_2020_release.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb84b18b-1d7d-46b4-80af-e05f620b39c3/beranujuta.pdfIn PDF document text
    • http://xutunebel.epizy.com/does_ikea_donate_to_nonprofits.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03c92734-aa8f-4acd-946e-1d4b76179bb2/luxpro_thermostat_locked_psp511lca.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d506b64-8ae7-49d5-97be-09b270fcff8c/gravely_60_zero_turn_mower_blades.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/930d77b2-ff3b-4512-b406-2cb7e77aa3c1/4740436866.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c0fdbed-4843-42db-b50f-e5153a9b4540/what_is_an_example_of_an_essay_question.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ad33281-a2f0-4a25-a730-66a6692a8660/how_do_i_connect_my_hp_deskjet_2620_printer_to_wifi.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/arjun_the_warrior_prince_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/decb16ab-f59b-4fc8-9bf0-3c3e70ec2d8e/attachment_style_questionnaire_for_adolescent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac57803c-cb49-4114-9eaf-5e51ab85dea3/is_diary_of_a_wimpy_kid_wrecking_ball_the_last_one.pdfIn PDF document text
    • http://gamadajizi.rf.gd/879999760.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/67290760723.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_off00010b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B1E 5900 bytes
SHA-256: 8ca6ea1aaae47d5ffaf71df2006d070276219a92f034ddb5a006451c27b68ca3
font_01_sfnt_off00011e71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E71 12152 bytes
SHA-256: d345252ebccc0bc5eaabe7b572047f0e204842aa83680914e0cfaedf57527ea1