Malicious PDF — malware analysis report

Static analysis result for SHA-256 0013671ae38797a5…

MALICIOUS

PDF

70.6 KB Created: 2021-01-25 14:14:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: dc63b77833c20a7979a17848d3400883 SHA-1: b364315535f4cab6e357b56b8b4baabf64f8de3a SHA-256: 0013671ae38797a53842fa5a947437737a82cd0279e418ea501dbcc30a05de42
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://jottigo.ru/wb?keyword=five%20below%20overnight%20stocker PDF link annotation
    • https://cdn.sqhk.co/dejijadu/8Eahfgc/nfl_fantasy_football_draft.pdfIn PDF document text
    • http://newser.site/video_downloader_for_instagram_video_lockermjb8d.pdfIn PDF document text
    • https://cdn.sqhk.co/suxupijisajo/1x3rie0/bluetooth_speaker_for_car_with_no_radio.pdfIn PDF document text
    • https://vavaxomutiposev.weebly.com/uploads/1/3/0/7/130738712/defumexu-bipilonumode-ladorusapixe-romimibixifut.pdfIn PDF document text
    • https://rulovuwupe.weebly.com/uploads/1/3/5/3/135386045/vebamusozo_nudafujuvizemi.pdfIn PDF document text
    • https://fubomagasikeka.weebly.com/uploads/1/3/4/4/134474343/7dc5a07989ff.pdfIn PDF document text
    • http://expressvpn.store/amazed_emoji_iphone6f6z0.pdfIn PDF document text
    • https://cdn.sqhk.co/jowowibow/hHYjctK/zugibikilakoxizalatox.pdfIn PDF document text
    • http://chaptejvxz.fun/happy_wheels_online_levels_pcuchxl.pdfIn PDF document text
    • http://begemot.space/lagujejip9fup.pdfIn PDF document text
    • https://mofumamivuzav.weebly.com/uploads/1/3/1/0/131070192/mawoliguk-girexobudi-rizusebumilop.pdfIn PDF document text
    • http://reweder.site/ella_mai_shot_clock_instrumental_mp3ahbzo.pdfIn PDF document text
    • https://cdn.sqhk.co/kowaziwaso/ftkEySj/carpet_cleaner_rental_home_depot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/bablu_dablu_video_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/dadupawo/duzuno.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_off0000d79b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD79B 5164 bytes
SHA-256: 6dbea4f661e81d76dd545179911643a684b9d8c09a6bc225a49a66c5bbcf8646
font_01_sfnt_off0000e947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE947 10724 bytes
SHA-256: 483c59c38629087d7bf4436799a30e4c2165a1fd3343ae921b6e57d06055205c