Malicious PDF — malware analysis report

Static analysis result for SHA-256 4869ffa8b5b604bc…

MALICIOUS

PDF

71.6 KB Created: 2021-03-01 02:16:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e6c15f37fb06a09605ded0acb7f6b0ce SHA-1: 5638967811f63e6960068e6c378eb382d8868087 SHA-256: 4869ffa8b5b604bceb062bfe7255a0cffc06ea958b162a6a23ed163f9239d5f0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://druttle.ru/wix?keyword=kill+clip+vs+rampage+blast+furnace PDF link annotation
    • http://egosikenclub.com/334437067077cool.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427506/normal_5ff909d4bdf44.pdfIn PDF document text
    • https://cdn.sqhk.co/vimewiki/NSdb0if/35122310653.pdfIn PDF document text
    • http://websporizlehd.com/lagu_dj_mr_bombastic1vp7o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402740/normal_603c16634bcba.pdfIn PDF document text
    • http://kasyanbeauty.com/kendo_spreadsheet_custom_toolbarvkivh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476427/normal_5fe6761c6bcbc.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/ewicje9/cooking_games_for_playstation_vr.pdfIn PDF document text
    • https://gurawibozogudex.weebly.com/uploads/1/3/0/7/130739732/rudatoxotaxux.pdfIn PDF document text
    • https://tuwagufo.weebly.com/uploads/1/3/3/9/133999840/f56f0d29.pdfIn PDF document text
    • https://cdn.sqhk.co/sojowidaz/haVhohc/jafawimuruxolinuj.pdfIn PDF document text
    • https://cdn.sqhk.co/vujuzira/fBgfQGx/teacher_anecdotal_notes_examples.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jijekoseme.epizy.com/74197628754.pdfIn PDF document text
    • http://pogapebod.rf.gd/embedded_video_from_website_online.pdfIn PDF document text
    • http://suxopubovokok.epizy.com/vutezole.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/bogachev_measure_theory.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_off0000dca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA9 5504 bytes
SHA-256: 63f17ac9bcc99f792dbc6e02fc1fb9f95166420bda984d0f62d1b944e431985a
font_01_sfnt_off0000ef5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5B 9992 bytes
SHA-256: 8bf7b59a75167c5b86e4f25aa83edfee9b62f688cc73eed0b198613d32162b46