Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dc45d24493d21fc…

MALICIOUS

PDF

62.8 KB Created: 2021-02-15 20:58:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9e20e2fa61f45ac51c871b534beb881f SHA-1: 4b24dbd1398b9c02912b682626cc8c3f4e945b8d SHA-256: 8dc45d24493d21fc55cc20247b15e9332a3183e27bdc1866466042dde73f1f4e
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://baarspo.ru/wb?keyword=shark%20lift%20away%20deluxe%20nv360%2026 PDF link annotation
    • https://bapefakujina.weebly.com/uploads/1/3/4/4/134483882/pofugo-labataz-timajonebogoxuk-pazejewebawijok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493600/normal_601d169d42651.pdfIn PDF document text
    • http://idealslim-italiaoficial.site/autocad_2d_chair_blocks_freegvr5r.pdfIn PDF document text
    • http://potobol.22web.org/vaduxegorumezu.pdfIn PDF document text
    • http://d2-club.ru/85735736411l58b1.pdfIn PDF document text
    • https://vojonabof.weebly.com/uploads/1/3/1/3/131383251/mujisegonu-vigifi-dumural-bigupopadomado.pdfIn PDF document text
    • https://cdn.sqhk.co/jabupexipa/fgfhc8A/latest_us_election_2020_polls_fox_news.pdfIn PDF document text
    • https://cdn.sqhk.co/xixujipum/ijggZhh/paxulifupixozalitamemupa.pdfIn PDF document text
    • http://milanomodaitaly.site/civil_war_battlefields_in_west_tennesseec1hbf.pdfIn PDF document text
    • https://fakivafepupu.weebly.com/uploads/1/3/0/8/130873921/luveburisutoburino.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vemaxijamez.epizy.com/40361896165.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/61816176258.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/lujuwazezaliweki.pdfIn PDF document text
    • http://paruwegugu.rf.gd/xezaf.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/66387878598.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_off0000b9fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9FE 5896 bytes
SHA-256: 189931335f33817f1ffb6772006174ee8c87037835334959a513c173871583de
font_01_sfnt_off0000ce28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE28 9428 bytes
SHA-256: e56d5d012b3e5a6513e9b92672b9fda2b7238c67d99d702547b30c5e47fbed2f