Malicious PDF — malware analysis report

Static analysis result for SHA-256 54b584f7f27968aa…

MALICIOUS

PDF

70.8 KB Created: 2021-02-20 09:51:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c760f63e4a6ebec0624e649a6a3a8a7b SHA-1: 9d2b0cc3d2f06e477186a95427945e58fda7b1b5 SHA-256: 54b584f7f27968aa8b392ffac2d4ec79e12b7a469104f590b5064e2e83f60431
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://druttle.ru/wix?keyword=filson+alaskan+guide+shirt PDF link annotation
    • https://cdn.sqhk.co/gavezexu/Pja63ib/death_breath_farming_monk.pdfIn PDF document text
    • http://opensoda.pro/45289196281kb0ti.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383577/normal_5fcf98ac1c937.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384468/normal_5fc78d54e6037.pdfIn PDF document text
    • https://cdn.sqhk.co/manoxixo/ozabgiP/16488523594.pdfIn PDF document text
    • http://cancandance.org/31385337427myq0p.pdfIn PDF document text
    • https://cdn.sqhk.co/runenuti/cjg0ihm/28307385187.pdfIn PDF document text
    • http://stav-games.ru/the_essential_life_book_australianeulz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489045/normal_601d6381ac6db.pdfIn PDF document text
    • http://9gusevshop.space/root_browser_pro_apk_2018vme0g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378151/normal_601990200f9dd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473052/normal_5ffbdc8b90ca9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuvugagud.epizy.com/sefix.pdfIn PDF document text
    • http://rabuxevemut.rf.gd/ayo_teo_rolex_m4a.pdfIn PDF document text
    • http://bikikifuxax.epizy.com/google_analytics_website_templates.pdfIn PDF document text
    • http://soxomidil.epizy.com/sadijugokabukepuj.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_off0000da31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA31 5108 bytes
SHA-256: 21cd3423c1c400dbb0bc7d3afefbfb52b347f4b110e0510576fc089f2b743df1
font_01_sfnt_off0000eb86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB86 10168 bytes
SHA-256: b111b02249b62385363e6d21dd3187fa7dcf33f6e7652fc41d1f804ee4fb18aa