Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3367a79187bd214…

MALICIOUS

PDF

69.5 KB Created: 2021-02-12 18:44:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 09d9a5bfc395e9e7f2feb40cf2792338 SHA-1: 32356e304f03c51298b0063778a7d42d37e9b828 SHA-256: a3367a79187bd2143f08710c3b87958324a97caf5c1cf900c82f9896b51bbc1c
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://bologen.ru/123?utm_term=what+was+the+reformation+yahoo+answers PDF link annotation
    • http://ag-management.space/rozepiburiwere56s.pdfIn PDF document text
    • http://delayikapy.xyz/proposition_juxtapose_et_coordonnep91kc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366377/normal_600f9dbaf0d12.pdfIn PDF document text
    • https://memagakotis.weebly.com/uploads/1/3/4/7/134760483/fefafaxa-nimusibenumi-loposefaw.pdfIn PDF document text
    • https://somigoduwus.weebly.com/uploads/1/3/4/4/134470899/cfbc58d.pdfIn PDF document text
    • http://kanshoper.site/oanda_currency_cheat_sheetfdl99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424689/normal_60120e4bedd85.pdfIn PDF document text
    • https://delazodudiz.weebly.com/uploads/1/3/4/5/134591817/9718354.pdfIn PDF document text
    • http://sushibara.net/15482747493db08q.pdfIn PDF document text
    • http://ampinternational.org/vorefariner8y6j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393644/normal_5ffbfb021f33e.pdfIn PDF document text
    • http://ufenmac.com/teenage_chore_list_templates0h135.pdfIn PDF document text
    • https://cdn.sqhk.co/kinanekoxo/PibHahi/bosawixumegemi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405946/normal_5fde6d9198391.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470027/normal_5fd256c67ac44.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_off0000d4a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A9 5184 bytes
SHA-256: 8e845529617d6378e163ae906aa5d4a2018c55f0d5478c9111fe7ee59e88cf1e
font_01_sfnt_off0000e63d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE63D 10272 bytes
SHA-256: afb5b6df5c8d56500e0d295ca114e2cc45d66c29c0db8700b1eacd2c92e8e8df