Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f79012f5a50690d…

MALICIOUS

PDF

72.0 KB Created: 2021-01-20 18:21:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b26a266affeffa7a4363454da3d037c3 SHA-1: 97eec4e81bf4b4f3f6283a85ab0913d4b1a1990c SHA-256: 2f79012f5a50690de8e0441f9cfc1be41a60d008c412ac32e6fc3d2659a8f3a4
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://jottigo.ru/wb?keyword=dropbox%20space%20race%202020 PDF link annotation
    • https://cdn.sqhk.co/dogutadova/uIifHif/79292917166.pdfIn PDF document text
    • https://site-1178961.mozfiles.com/files/1178961/aap_ka_suroor_song_album.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/hdgjfhf/33499055760.pdfIn PDF document text
    • https://cdn.sqhk.co/sazobenapur/PiafSJq/5342742188.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412758/normal_5fdfde31c3a82.pdfIn PDF document text
    • https://site-1171686.mozfiles.com/files/1171686/mobofagesuwafejabugis.pdfIn PDF document text
    • https://cdn.sqhk.co/tewisifupib/7iiighj/27764973117.pdfIn PDF document text
    • https://site-1176165.mozfiles.com/files/1176165/32593879151.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384308/normal_5f988fad17917.pdfIn PDF document text
    • https://cdn.sqhk.co/lojeliju/iiiFgji/download_game_avenger_legend_mod_apk.pdfIn PDF document text
    • https://site-1168300.mozfiles.com/files/1168300/todomusuforegirup.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/pujirageg/irs_amended_tax_return_form_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/purawuma/andy_for_windows_xp_32_bit.pdfIn PDF document text
    • http://lamekukibudinos.epizy.com/friction_loss_in_pipe_flow_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/backuptrans_crack_free.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_off0000dd8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8C 5376 bytes
SHA-256: ca8a0e139afddf92ed3938f7972834500039fe14e355c9ca53e9314b13557e2b
font_01_sfnt_off0000efe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE3 10704 bytes
SHA-256: 9ea977e6593af5d9c59657e0b7a451198714b94e97083550a14691cf3f31a7c6