Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cef0afa0fd3ad0f…

MALICIOUS

PDF

72.1 KB Created: 2021-02-03 10:53:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d1f29938f238d373fb19f2410e33eb4f SHA-1: e24ba18a86461b48211c7a1f9745474efbbd3561 SHA-256: 0cef0afa0fd3ad0fbdc624c747072749bbff1e1106631d4159c0773670144fc8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wb?keyword=almost%20lover%20fine%20frenzy%20piano%20sheet%20music PDF link annotation
    • https://tiparopodewab.weebly.com/uploads/1/3/5/3/135340776/bakix.pdfIn PDF document text
    • https://dovezoluwebib.weebly.com/uploads/1/3/4/0/134017866/9591753.pdfIn PDF document text
    • https://cdn.sqhk.co/perikowep/hhhdeha/classic_car_city_racing_3d_model.pdfIn PDF document text
    • https://cdn.sqhk.co/velabolo/hiqAjhY/.pdfIn PDF document text
    • https://rijevolokawuja.weebly.com/uploads/1/3/4/6/134661742/e19c2815d15e871.pdfIn PDF document text
    • https://pusotovoxidelo.weebly.com/uploads/1/3/1/6/131637553/kuvene_kudigo_xulivebisipux.pdfIn PDF document text
    • https://cdn.sqhk.co/zufuxirap/jibRgi7/xuxibo.pdfIn PDF document text
    • https://vizegibog.weebly.com/uploads/1/3/4/4/134458583/7076149.pdfIn PDF document text
    • https://legopojuze.weebly.com/uploads/1/3/4/3/134369078/kefukixixa.pdfIn PDF document text
    • https://wapojopaboxijok.weebly.com/uploads/1/3/4/7/134747084/tizil.pdfIn PDF document text
    • https://towipikegogu.weebly.com/uploads/1/3/4/6/134690187/gemetijaxuvudo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tusibav.epizy.com/bass_songs_punjabi_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/cover_letter_templates_free.pdfIn PDF document text
    • http://vuripoda.epizy.com/prince_george_s_county_police_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/xabovenenajom.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_off0000dbb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB2 5456 bytes
SHA-256: 2b1f2cd7d683451e5c10b9def62f5a5cf7ee5c8049f77800f4b769d3d38bb61a
font_01_sfnt_off0000ee30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE30 11516 bytes
SHA-256: 0f3f708df41daf07ff95e8582ea166c4083b2bf9883da81bad0874be4a300d68