Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb3ede1409b300a…

MALICIOUS

PDF

67.0 KB Created: 2021-01-20 12:43:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5d739a39fe377105c4e5c98d9f72d03f SHA-1: 3fe741f669eecc6732d4a28dfbedeb4c66f32095 SHA-256: dbb3ede1409b300a7a8b3a8325ce90556b1ff8bd5c68428cb6f3baa047916f2c
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://maypoin.ru/aws?utm_term=barcode+scanner+usb+driver PDF link annotation
    • https://cdn.sqhk.co/mimotulifoti/aJegigj/stickman_and_gun_3_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/nivopekodi/dvYyi0a/sozekelufugarabuvozewa.pdfIn PDF document text
    • https://cdn.sqhk.co/farafakilof/fBshcEN/tiki_kart_3d_old_version.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402720/normal_5fbec166004f4.pdfIn PDF document text
    • https://cdn.sqhk.co/kapapomabu/9sgAKje/14447098503.pdfIn PDF document text
    • https://cdn.sqhk.co/finulepaf/TFgfifS/nitulinugid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491151/normal_5ff9f252203be.pdfIn PDF document text
    • https://cdn.sqhk.co/xanodujijefu/FLa6ihB/sky_roller_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369926/normal_5f91dbee6fdb6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://guruwemuzotal.epizy.com/trumpet_sheet_music_hot_cross_buns.pdfIn PDF document text
    • http://jumebesatupa.epizy.com/vmware_windows_10.pdfIn PDF document text
    • http://limixumijegaf.epizy.com/adobe_after_effects_titles_templates.pdfIn PDF document text
    • http://duvexarido.epizy.com/judos.pdfIn PDF document text
    • http://juwemijawikipo.epizy.com/97532416185.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/zateguxel.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_off0000c9fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9FD 5148 bytes
SHA-256: 8bf7599b63207e27440ba64de7f01717ad742f4e220730fab436a60594e5bbd1
font_01_sfnt_off0000db8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB8F 10496 bytes
SHA-256: 32df0b6d7b9e11a8190ba660239c7f7eebd574112b7b1789f66f5982b3a083da