Malicious PDF — malware analysis report

Static analysis result for SHA-256 10fd9b07c69b689b…

MALICIOUS

PDF

82.6 KB Created: 2021-02-17 08:41:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d33ea226577c1b546520a2ec7c80a664 SHA-1: 84e202b34a02e1fcfd9ddc1489a0e2140afea092 SHA-256: 10fd9b07c69b689bf31b47f6786ba84e46737060f8cea0486e5770e4f7900695
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://baarspo.ru/wb?keyword=how%20to%20mentally%20prepare%20for%20dental%20work PDF link annotation
    • http://dezlice.ru/kinudepazetiv1am5i.pdfIn PDF document text
    • http://martakkord.ru/individual_career_development_plan_examplesqeqai.pdfIn PDF document text
    • http://ladukusuga.22web.org/befusipazuzupigemaw.pdfIn PDF document text
    • http://prostochillforum.fun/794240417317mrm1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449599/normal_600ed2a02fc87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383149/normal_5fe74129b1875.pdfIn PDF document text
    • https://cdn.sqhk.co/xutazazo/FP4heBQ/jolelinepofopazipoxoto.pdfIn PDF document text
    • http://redtea.space/409387674195wwr7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489852/normal_601b64d100450.pdfIn PDF document text
    • http://shlifovka-pol.website/nanda_2015-2017_downloadzob2d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450141/normal_5feda3fe458b2.pdfIn PDF document text
    • http://uuuuull.space/97672851746ykpbf.pdfIn PDF document text
    • http://blubadgehelp.net/4523546534902mct.pdfIn PDF document text
    • http://famojefefe.iblogger.org/52382889.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wepesubotivirel.epizy.com/96907307731.pdfIn PDF document text
    • http://wiwekire.epizy.com/bosch_induction_cooktop_user_guide.pdfIn PDF document text
    • http://gizexagivet.rf.gd/52685348137.pdfIn PDF document text
    • http://nelevevupa.rf.gd/wazafuzosorojaluvemo.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_off00010787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10787 5228 bytes
SHA-256: dd0002c7ae490be573a06f5c786458750cd094e7442ad0bcab54f06f1aac59d9
font_01_sfnt_off00011952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11952 10580 bytes
SHA-256: beece12d837c3a42c46d0cfd308944fbc3111d39913f24b21ae2d7fa04720bac