Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fdf0a5f50b2752b…

MALICIOUS

PDF

71.6 KB Created: 2021-03-01 04:36:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d81555a2784ed2594529ebb2b78575e7 SHA-1: d98ffd6631a26b28f1b5573f05c73b8891494d5d SHA-256: 1fdf0a5f50b2752bb2b3505cc72b8a69916c800d4a65fb6f4600ef28914cdce4
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://jumiwimov.ru/award?keyword=real+scottish+journeys+reviews PDF link annotation
    • http://garant-ritual.online/4182862276pdax0.pdfIn PDF document text
    • https://cdn.sqhk.co/jimevexir/ja0VnWI/planetary_annihilation_legion.pdfIn PDF document text
    • http://milky-rp.space/gout_cookbook_indigot6md1.pdfIn PDF document text
    • http://ubzvp.com/74651143978z7ran.pdfIn PDF document text
    • https://wusitezuredov.weebly.com/uploads/1/3/5/3/135314125/katomag.pdfIn PDF document text
    • https://cdn.sqhk.co/saboxiwago/7gihaoN/reberodokokoxos.pdfIn PDF document text
    • http://trydouche.xyz/what_is_the_sociology_of_religion_paradigmo8on0.pdfIn PDF document text
    • http://xavimelobuvi.22web.org/stay_alive_book_summary.pdfIn PDF document text
    • http://bighome.space/streamelements_alerts_not_working28111.pdfIn PDF document text
    • http://smeh-mif.space/jonek12wgj.pdfIn PDF document text
    • http://kzrovk.xyz/974118679705mowr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ralivapoked.epizy.com/hellp_syndrome_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/fabriano_sheets_a3.pdfIn PDF document text
    • http://vugapadilubokis.epizy.com/best_regards_email_template.pdfIn PDF document text
    • http://vidodelogedotub.epizy.com/58521816658.pdfIn PDF document text
    • http://lugirike.epizy.com/jafopugomamujatinu.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/vemifositumijovenidu.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/selenium_webdriver_in_c.net_learn_with_examples.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_off0000dd7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7D 5224 bytes
SHA-256: 8f4b43f39cfb5088f5f0d8c1b0ebeab320f4c92809a96b50c9dd8bf72873d731
font_01_sfnt_off0000ef5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5A 9928 bytes
SHA-256: a48456f249cf2bfa7d73fd39cc053c0fb412f9ce8e82dc897cc924ab65622c18