Malicious PDF — malware analysis report

Static analysis result for SHA-256 02441f2e6edf7665…

MALICIOUS

PDF

73.2 KB Created: 2021-02-17 15:30:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 221f51b77f1f6ced552a372f6eff641b SHA-1: 200d4f32f46d41bf8e23900b1810caa81dbb5426 SHA-256: 02441f2e6edf76656bd702a8ce38e301d6143b119592009efd2e03a1dafd2a9f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=nurse+change+of+shift+report+templates PDF link annotation
    • https://xogoluxoso.weebly.com/uploads/1/3/4/4/134444279/bd677b72f5b4.pdfIn PDF document text
    • https://cdn.sqhk.co/nigulavax/6EQfhhJ/cake_ideas_to_make_at_home.pdfIn PDF document text
    • http://espaceabonnes.com/kjv_bible_study_lessonshze2t.pdfIn PDF document text
    • http://usersdeviceprotectionservice.site/lulomibusonurexadux7slbg.pdfIn PDF document text
    • https://cdn.sqhk.co/setawigiz/Zgehd4G/50635273264.pdfIn PDF document text
    • http://apelsins.space/5_seconds_of_summer_top_songs_listboxpr.pdfIn PDF document text
    • https://pefodiral.weebly.com/uploads/1/3/4/4/134476409/nurilofegom.pdfIn PDF document text
    • http://yoga-italy.space/picsart_for_macbook_airjo61h.pdfIn PDF document text
    • http://laitlabs.pro/gupogevegenuzejuxox00e43.pdfIn PDF document text
    • https://kitedagipan.weebly.com/uploads/1/3/4/8/134892955/5940e56325145.pdfIn PDF document text
    • https://cdn.sqhk.co/bulunazi/rLiPieq/kinder_surprise_candy_eggs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454821/normal_6015b64a8b45e.pdfIn PDF document text
    • https://cdn.sqhk.co/ramazunor/CMojcXY/cabify_logo_font.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453579/normal_60039a7b42fa9.pdfIn PDF document text
    • https://nikigetevakawu.weebly.com/uploads/1/3/1/4/131413362/1547224.pdfIn PDF document text
    • https://cdn.sqhk.co/nuxegaxujifo/vgfibgf/zelle_limit_per_day_chase.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://napuvonir.epizy.com/captain_america_series.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_off0000e29b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE29B 5400 bytes
SHA-256: e25203f3199882947d0edab3292a200d84396d8ab0246bb006c09c837b961778
font_01_sfnt_off0000f4e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E0 10276 bytes
SHA-256: 46dcfba33e1e458cd535523806eaf6ee0f2965985657c5ed22c144e1cd394fa0