Malicious PDF — malware analysis report

Static analysis result for SHA-256 022681ff59aba8e1…

MALICIOUS

PDF

70.9 KB Created: 2021-01-29 20:52:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 5fa616eda8aefacdfc739a3f86c85f34 SHA-1: 13eb70606de1b88b301f821495c6eef8a1f7efa9 SHA-256: 022681ff59aba8e1b125abca5d45d2e93c6af5b6870b6eac946b7f0746dd69cc
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/aws?utm_term=ceftazidime+avibactam+prescribing+information PDF link annotation
    • https://cdn.sqhk.co/ruwonumatag/hd8jjgi/my_sprint_rewards_me_login.pdfIn PDF document text
    • http://nosinoski.shop/6264590g8i02.pdfIn PDF document text
    • http://itanto.space/capsule_promo_codelp5ha.pdfIn PDF document text
    • http://granitmetrospecstroy.ru/check_domain_name_availability_whois031d5.pdfIn PDF document text
    • http://c-advance.space/duzazidumjv1ox.pdfIn PDF document text
    • http://heliusdesign.ru/sunifavipadjopyl.pdfIn PDF document text
    • https://cdn.sqhk.co/fukonovum/e5jck1T/mascot_dunks_from_three_point_line.pdfIn PDF document text
    • http://pemutoguxo.66ghz.com/technique_pour_arreter_le_bgaiement.pdfIn PDF document text
    • https://bikewodeganesu.weebly.com/uploads/1/3/4/5/134596115/0b97bd679bcbd.pdfIn PDF document text
    • http://tamowigaxijatot.66ghz.com/china_embassy_visa_form_bangladesh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuwarikufaz.epizy.com/kudatobazizi.pdfIn PDF document text
    • http://bafemiw.epizy.com/joules_slipper_socks_size_guide.pdfIn PDF document text
    • http://newotev.rf.gd/commas_in_lists_worksheet.pdfIn PDF document text
    • http://wofelekupobepo.epizy.com/bifowugawukulamegemejaro.pdfIn PDF document text
    • http://dimegebewode.epizy.com/94861529016.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_off0000d6d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D8 5596 bytes
SHA-256: 247180ec0e7c672e661e9717d1098786b168d0cd1f66fe364a3421fa66449abc
font_01_sfnt_off0000e9dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9DD 10780 bytes
SHA-256: 91500f653d494d3015b126f48692e3df8e263ebc018fc62484ff769155a941fe