Malicious PDF — malware analysis report

Static analysis result for SHA-256 cce9915af75c8ea1…

MALICIOUS

PDF

72.2 KB Created: 2021-02-21 20:37:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f9b22b0b9d2bd295349ed2fedc02875c SHA-1: a044e8ad9fc729769a0a09993a2a5c94da43fee3 SHA-256: cce9915af75c8ea176b3ad643860b3054beb8faca3b69b4ff6ad2969c9da76d6
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=the+road+back+to+you+pdf In PDF document text
    • https://cdn.sqhk.co/gebunemif/jgge76l/giwijejibuxupunaw.pdfIn PDF document text
    • http://unreguezff.rest/radio_1_uk_top_40_songs_this_weekxi0ff.pdfIn PDF document text
    • http://3gusevshop.space/kindergarten_drawing_worksheetsx7tz8.pdfIn PDF document text
    • https://sipesavuw.weebly.com/uploads/1/3/4/6/134697333/9c581508.pdfIn PDF document text
    • http://masterpowerpoint.com/shopclues_apk_uptodownuea7f.pdfIn PDF document text
    • https://padawevuwelidas.weebly.com/uploads/1/3/1/4/131438111/kisopofebo.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvidomanale/ihbEmbL/screen_time_passcode_recovery_ios_13_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wiwuwigo/dnxTVhe/geometry_rush_cool_math.pdfIn PDF document text
    • http://vehicleusains.com/tekugedapegikavawifisos8awed.pdfIn PDF document text
    • https://fatatarulawug.weebly.com/uploads/1/3/4/4/134474158/jowudidisagokitafef.pdfIn PDF document text
    • http://usesalle.xyz/mofokadafoxebigisps28b.pdfIn PDF document text
    • http://badge-verification-center.com/17227998169jshzb.pdfIn PDF document text
    • http://ourfanz.com/h_s_c_marksheet_2019rtagw.pdfIn PDF document text
    • http://ellmax-site.xyz/bianca_nieves_y_los_7_toritos_chapter_5cvid8.pdfIn PDF document text
    • https://musisemikalig.weebly.com/uploads/1/3/4/6/134694348/0fc2b.pdfIn PDF document text
    • http://bumaga.bz/novecento_baricco_englishyqhkj.pdfIn PDF document text
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/fuxuxumibivo6aoq.pdfIn PDF document text
    • https://zavowajasobi.weebly.com/uploads/1/3/1/4/131406950/9089349.pdfIn PDF document text
    • http://justamorem.com/proform_intermix_acoustics_2.0_manuahasna.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dcee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCEE 5288 bytes
SHA-256: a641cb2da5ed63b3a4392bd0d1200129a576a0b619f8a2f3c7797b6c69b92aa4
font_01_sfnt_off0000eee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE9 10752 bytes
SHA-256: a518794d269b8fe5a31882f52d21573a53dfb9b1c4492c647a9892cbd64be731