Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3a584b56b8f2650…

MALICIOUS

PDF

91.5 KB Created: 2021-02-26 21:10:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1bc190bacc22981e13ba8aeccfd7f8b4 SHA-1: 582ac08cf5e9a9f55845eecf69f8b8250e0f9550 SHA-256: e3a584b56b8f265040dfcef8c8c920d568ef194a45553a5d792c1f36f53949a6
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://dugedepap.ru/wb?keyword=what%20is%20world%20religion%20definition PDF link annotation
    • https://rudusixan.weebly.com/uploads/1/3/0/7/130775573/150f4da8692a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387565/normal_5fd7c31f04892.pdfIn PDF document text
    • https://viwekaxirudadax.weebly.com/uploads/1/3/4/7/134700275/7258441.pdfIn PDF document text
    • https://ranetaxute.weebly.com/uploads/1/3/4/8/134886021/2354210.pdfIn PDF document text
    • https://zewazinox.weebly.com/uploads/1/3/4/2/134235380/6397009.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/what_is_the_9_box_model.pdfIn PDF document text
    • https://jobalexaxikut.weebly.com/uploads/1/3/4/8/134892204/1a2b91f080fc2.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/fezevasuzakubexi.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/40754254113.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/the_law_of_the_garbage_truck_book.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/10618974332.pdfIn PDF document text
    • https://kogofidovobe.weebly.com/uploads/1/3/1/8/131871531/f53633fec.pdfIn PDF document text
    • https://wifivarar.weebly.com/uploads/1/3/4/8/134887990/badc40b1766.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://banolepepo.epizy.com/dinosaurs_printable_worksheets.pdfIn PDF document text
    • http://mivevusewez.epizy.com/tijupofufopaza.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_off00012a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A85 5272 bytes
SHA-256: 02845272e6f21976ae604e2af8f24e831257c384de4aac17d674bc5d8adaf1db
font_01_sfnt_off00013c86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C86 11064 bytes
SHA-256: d1abc2260b4986de5c9fff9cacc33847f25d6e573d3dcda81d6806f5c3bc7991