Malicious PDF — malware analysis report

Static analysis result for SHA-256 749ce4bde9b9bb7b…

MALICIOUS

PDF

67.9 KB Created: 2021-02-23 22:35:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9db1ed6d7877f149a7dff38ae81325f6 SHA-1: fd73d4f2d81bc77107f8dc6659671c8e3f7b157a SHA-256: 749ce4bde9b9bb7b560cb4d14739ef980f910863505584e6725da3f924cd370d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wix?keyword=sears+online+assessment+test+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4470526/normal_5fe21959a8b96.pdfIn PDF document text
    • http://bitipusefotas.66ghz.com/juzorukonitesaw.pdfIn PDF document text
    • http://sotovezi.22web.org/nadipiwozogalifobugokug.pdfIn PDF document text
    • http://tendernes.ru/namuwetivikoxosovedjcip4.pdfIn PDF document text
    • http://nanolenka.xyz/59584557600e6m73.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490547/normal_603351f050dfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475406/normal_602da9d98e4c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403822/normal_60139935ef44a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375507/normal_5ff3f89d69ec3.pdfIn PDF document text
    • http://vujedamezux.22web.org/fisher_price_revolve_swing_not_working.pdfIn PDF document text
    • https://cdn.sqhk.co/goremujoz/hfhagju/agneepath_all_songs_video.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lekipuvuji.epizy.com/fitness_training_session_plan_template.pdfIn PDF document text
    • http://rifesos.epizy.com/cateye_bicycle_computer_manual.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_off0000ce52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE52 5028 bytes
SHA-256: 0b308d92075cab2383dc7e8d046fb4e3a7efe31b6aed143e5b323835f9ca5ffd
font_01_sfnt_off0000df5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF5E 10464 bytes
SHA-256: 9c2cbf4599bb5dbbe1fd644999ca19b731b6c166fca3a349e41b8fe75ff9ebf7