Malicious PDF — malware analysis report

Static analysis result for SHA-256 5740fa7cfc0e789e…

MALICIOUS

PDF

89.2 KB Created: 2021-02-27 23:43:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 36c975acb7583e42fbdad90046883a8b SHA-1: f14cd4d672be0825dfd3d59731a96f75a1cc7f6d SHA-256: 5740fa7cfc0e789e1520e25538a52f40c1e9769fc2826d7fa0c69df6a9982c2b
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://leonvi.ru/wix?keyword=final+fantasy+14+summoner+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444096/normal_6015ffc9072dc.pdfIn PDF document text
    • http://kujunat.medianewsonline.com/how_to_clean_a_black_and_decker_dustbuster.pdfIn PDF document text
    • https://vujugorakiti.weebly.com/uploads/1/3/4/7/134719441/9272245.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393353/normal_5ffe032348347.pdfIn PDF document text
    • https://torovuzexas.weebly.com/uploads/1/3/2/7/132710592/7522570.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/rXii09L/komizamagofal.pdfIn PDF document text
    • http://appletopshop.ru/56613126408vbzwd.pdfIn PDF document text
    • https://wadonado.weebly.com/uploads/1/3/4/6/134677460/zutip_jepigos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404969/normal_6036bca59c0b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490974/normal_601fc4989c57b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370064/normal_60247af6702c3.pdfIn PDF document text
    • http://befotuke.mywebcommunity.org/pekikowimanutumetizulek.pdfIn PDF document text
    • https://nemelodanunoju.weebly.com/uploads/1/3/0/8/130874480/zesijo_kawofutide_vowobok.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sutexuvidag.myartsonline.com/basc_3_srp_sample_report.pdfIn PDF document text
    • http://wadoromutisagar.myartsonline.com/what_are_the_three_laws_of_power.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_off0001213b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1213B 5424 bytes
SHA-256: c801f4e8d98446db078b4489676ebbd193f8433067746dac68a07e6d52f0f7eb
font_01_sfnt_off000133b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133B3 10760 bytes
SHA-256: 35f10bb705484100cbf38a42a3ac30a5ed2cc07df23e887f0d7a8f014351ab27