Malicious PDF — malware analysis report

Static analysis result for SHA-256 387326093b14955e…

MALICIOUS

PDF

70.8 KB Created: 2021-02-25 05:08:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a3393c68462761854003db25c1c6693e SHA-1: 46fecc2d86527ff3dc9568f94ea42ca6b98f008a SHA-256: 387326093b14955e44ebde505a1235b3326f47815e3dbd3d9db78dd7645ba081
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://jacksth.ru/wix?keyword=top+eleven+hacker+2017 PDF link annotation
    • http://1yamal.space/abcd_2_songs_wapkingtn12o.pdfIn PDF document text
    • http://denizan.com/ardic_cable_tray_catalogue9oa5m.pdfIn PDF document text
    • https://voberugupov.weebly.com/uploads/1/3/4/4/134496708/nozokurenojiwe_xusisuvimoro_wipulup.pdfIn PDF document text
    • http://smartcreditscore.info/2016_calendar_template_australia_word3x88a.pdfIn PDF document text
    • https://xabizukilitexe.weebly.com/uploads/1/3/4/3/134335342/cabb8e792c4.pdfIn PDF document text
    • https://mosivupidener.weebly.com/uploads/1/3/1/6/131637589/minidukinunek_zomina_nerixoteluru.pdfIn PDF document text
    • http://interbank.link/86529210041421i4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nufiwimuzobo.onlinewebshop.net/35477325640.pdfIn PDF document text
    • http://sizatopus.rf.gd/68946277634.pdfIn PDF document text
    • http://suwutosu.epizy.com/jovifalon.pdfIn PDF document text
    • http://tanegonezato.epizy.com/what_to_do_if_your_cat_eats_ribbon.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_off0000d8fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8FE 5324 bytes
SHA-256: 85c592394df7e4a17cce564f0440fb6d3c81c8e24d41252f922854cbc7553f3d
font_01_sfnt_off0000eb24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB24 10364 bytes
SHA-256: 5d12fce6e10d215006bf7d48aa0d9f2f7e1aeb91e5196aac63785b627adda95a