Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba31064966531b01…

MALICIOUS

PDF

71.7 KB Created: 2021-03-05 21:54:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 2701e97af594f4e08e6f36ad1cdadf30 SHA-1: 88d33b6c95e948173ff0a78fce2ac51b2e517541 SHA-256: ba31064966531b01f64f50b427355559a58d06c8a62bace076b4235883adeb2a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://jumiwimov.ru/wix?keyword=ccds+study+guide+pdf PDF link annotation
    • https://kofulunaj.weebly.com/uploads/1/3/5/3/135320514/wewafopon_fixowaxise_texidotoreja.pdfIn PDF document text
    • http://kalidejomepajo.scienceontheweb.net/how_to_structure_a_poetry_comparison_essay_aqa.pdfIn PDF document text
    • http://ruvogodozipabiv.scienceontheweb.net/53956873387.pdfIn PDF document text
    • http://bixaxivajujojar.mypressonline.com/ketogekaxori.pdfIn PDF document text
    • https://cdn.sqhk.co/lanumakefu/Piijji1/54512670574.pdfIn PDF document text
    • http://jakesubinosol.scienceontheweb.net/que_es_una_propuesta_de_investigacion_cualitativa.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/is_there_a_book_9_of_outlander.pdfIn PDF document text
    • https://cdn.sqhk.co/rumoligodo/Juwhgxo/best_ringtones_free_download_for_iphone.pdfIn PDF document text
    • https://divekoworubu.weebly.com/uploads/1/3/4/0/134017674/wukozotod.pdfIn PDF document text
    • https://fabuxitewuf.weebly.com/uploads/1/3/4/3/134349615/lajajatalufavejo.pdfIn PDF document text
    • https://cdn.sqhk.co/kisesawaropo/c8Qibgg/backpack_mod_for_minecraft_pe.pdfIn PDF document text
    • https://cdn.sqhk.co/deloreba/XtMnwgi/bawolejelukaxawufajovowum.pdfIn PDF document text
    • http://lololoj.sportsontheweb.net/risuritadun.pdfIn PDF document text
    • http://rowowevu.mypressonline.com/dozijigusewugu.pdfIn PDF document text
    • http://gadivawiw.sportsontheweb.net/sugar_shack_blues_song.pdfIn PDF document text
    • https://cdn.sqhk.co/wagomito/ijhjbym/pokemon_quest_para_pc.pdfIn PDF document text
    • https://vofirojaj.weebly.com/uploads/1/3/1/6/131637635/5098309.pdfIn PDF document text
    • http://pidawudimo.scienceontheweb.net/57678283839.pdfIn PDF document text
    • https://sefujokugitexas.weebly.com/uploads/1/3/1/4/131408298/6531898.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://33c7e2ec-32fc-4676-a642-9d95a4379e01.filesusr.com/ugd/622218_6c9b7ebc5003448ea0019ab03594ee96.pdf?index=trueIn PDF document text
    • https://69868269-04aa-4a0d-8379-1371762fd556.filesusr.com/ugd/d8beff_0aa563a80a3f4c549410d1de61f4a77b.pdf?index=trueIn PDF document text
    • http://ziwemasux.myartsonline.com/62282730782.pdfIn PDF document text
    • http://sodowurivav.onlinewebshop.net/wepaxe.pdfIn PDF document text
    • https://737c154f-ca75-4484-807d-9d5c19d76377.filesusr.com/ugd/7e84b7_fe22fa7dbd354d6db739acc539a55925.pdf?index=trueIn PDF document text
    • https://4ad55601-b8ab-4ae0-bc0e-e90069072326.filesusr.com/ugd/3aca14_994a3e1efd954574828c3ba3ccd6916e.pdf?index=trueIn PDF document text
    • http://manosotidokef.myartsonline.com/getavejikawoka.pdfIn PDF document text
    • https://cf62593c-3f62-494e-9ef9-3c2a63ead7d7.filesusr.com/ugd/93dae2_12ce5ae40feb4a28969a7cc99448c470.pdf?index=trueIn 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_off0000dbf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF3 4992 bytes
SHA-256: 5d80a9f3caf83aa48758727fbec7ea1c927d13c78ebc791baa4484c4063a989f
font_01_sfnt_off0000ed14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED14 10612 bytes
SHA-256: f4a26a9e1fa52e629c374cbc8cb4adebafa156235f2296a57d6b9784fd77ceb8