Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3b33057ff8e6890…

MALICIOUS

PDF

67.8 KB Created: 2021-03-05 03:33:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e7aa6ca689fab9e60d6ebab5fc7609bf SHA-1: f94d62aab8f42c8f404babab850fa92878fcd8fe SHA-256: e3b33057ff8e689035af138f3421b9d7c0174ddf4091eb0fb841df86a6e446e5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://kuzutuzo.ru/award?keyword=el+escudero+de+dios+pdf+descargar PDF link annotation
    • http://wugumonisukanib.sportsontheweb.net/how_to_connect_my_sony_soundbar_to_the_subwoofer.pdfIn PDF document text
    • http://segwaywheelchair.ru/acorde_de_sol_mayor_en_piano1lp5e.pdfIn PDF document text
    • https://pafetujesotizi.weebly.com/uploads/1/3/5/3/135348857/puviku.pdfIn PDF document text
    • https://pusesame.weebly.com/uploads/1/3/4/6/134662227/wikaf-menap-juzowejoro.pdfIn PDF document text
    • https://cdn.sqhk.co/togareguko/iaUEIE9/katezisutepas.pdfIn PDF document text
    • http://housefashion.ru/sanoloxokifiriremeliluwo7jq5k.pdfIn PDF document text
    • http://wrinklestiltskin.com/business_dictionary_book13gcy.pdfIn PDF document text
    • http://jesofoma.getenjoyment.net/891331166.pdfIn PDF document text
    • https://cdn.sqhk.co/wujutasowowi/hiehgCx/cross_linked_hyaluronic_acid_dermal_filler.pdfIn PDF document text
    • https://cdn.sqhk.co/pigexebobe/ieidjgg/bird_of_paradise_bush_florida.pdfIn PDF document text
    • https://kaperimivegorew.weebly.com/uploads/1/3/4/3/134371305/822dfccb510e.pdfIn PDF document text
    • http://gosofejabe.iblogger.org/dadimatogezaxaw.pdfIn PDF document text
    • https://cdn.sqhk.co/bokirebi/ifQiiBR/36372344563.pdfIn PDF document text
    • https://fifimijo.weebly.com/uploads/1/3/4/7/134748793/6478344.pdfIn PDF document text
    • https://matomuzunoto.weebly.com/uploads/1/3/5/3/135389802/putaxepijijagup-suvuza-pibilagujan.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rilasiwawizumo.rf.gd/wuwifodob.pdfIn PDF document text
    • https://b25bb209-51d3-4c1a-b111-f3d6b026631a.filesusr.com/ugd/3bcfef_247fffabc3504ff78b306f262eba63c6.pdf?index=trueIn PDF document text
    • http://pogetowem.onlinewebshop.net/best_app_for_child_to_learn_english.pdfIn PDF document text
    • https://203e7bc3-08d7-4ecc-a8df-f797e0d4a079.filesusr.com/ugd/d4579c_ba627c31ff35498fb8e07b6db8dd5256.pdf?index=trueIn PDF document text
    • https://03386fec-e341-46be-bf9f-2f2bd19f9bfe.filesusr.com/ugd/bf57b5_219269a3ea3d433aa76e4c1ef3ba54bd.pdf?index=trueIn PDF document text
    • https://eee5dff6-7331-416e-acdf-593d0c386862.filesusr.com/ugd/21e9e0_2ea6ce3bd3414168a239c467b4be8d66.pdf?index=trueIn PDF document text
    • http://tarobajasupimi.epizy.com/rikakoxukevisutixuvedema.pdfIn PDF document text
    • http://tufopabapud.rf.gd/gatinokulikore.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_off0000c99f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC99F 5280 bytes
SHA-256: aa4aae3a40ce5cc3636dc8f629431ade60f95d007f28e3a7e52e08976f00af13
font_01_sfnt_off0000dba5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA5 11028 bytes
SHA-256: 2af567ae95af4305a94e4df78144a91a7ba743b869930122632bcab880e2ff77

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