Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6b398263057dd62…

MALICIOUS

PDF

83.2 KB Created: 2021-02-10 20:54:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 294cc327885f6d43c48a111d52f7d361 SHA-1: 1db77cd0b3a32c481412487c176bd60c3fa3f6db SHA-256: c6b398263057dd6281a82399f74271315edfd3b79c38099bf0ec96b079ae0fe3
126 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
  • 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=audio%20editor%20software%20for%20pc PDF link annotation
    • http://ygrash.website/sowexeneler8235u.pdfIn PDF document text
    • http://sodalabs.pro/lipirisveui7.pdfIn PDF document text
    • https://letosuve.weebly.com/uploads/1/3/0/7/130739520/999657.pdfIn PDF document text
    • http://noncomform.space/17449146829shubu.pdfIn PDF document text
    • https://mavezuwunokil.weebly.com/uploads/1/3/4/6/134627141/1132717.pdfIn PDF document text
    • http://diwokaxojizo.iblogger.org/lomadefajitilako.pdfIn PDF document text
    • http://all-system7.club/xupelokeladanojazerupini74ajk.pdfIn PDF document text
    • http://wuderiwewilew.22web.org/nosufamiridapol.pdfIn PDF document text
    • https://gewujamagig.weebly.com/uploads/1/3/5/3/135339218/zukonuk.pdfIn PDF document text
    • https://jevijoju.weebly.com/uploads/1/3/5/9/135978445/dosewasarim-zizotulovegev-sepel.pdfIn PDF document text
    • http://pokemonrivals.online/byju_s_the_learning_app_online1yuc1.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/kufazete/armenian_unicode_keyboard.pdfIn PDF document text
    • http://kozifina.epizy.com/42987764055.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/wanirupeli.pdfIn PDF document text
    • http://waboxizolomove.rf.gd/7447225536.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/alistar_guide_s8_support.pdfIn PDF document text
    • http://zaniwemikadas.rf.gd/caste_certificate_application_form_in_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/siwiwikarinonujidanu.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_off00010a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A02 5200 bytes
SHA-256: f835c6563f95aa6f891d0e3421491037d2dbf333e7f2b55264d28d4a2f261004
font_01_sfnt_off00011bd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BD5 10572 bytes
SHA-256: 249633dbe0371eace74326f72543a4211b6fab7f1c594023fe5b2c14d0b9107c