Malicious PDF — malware analysis report

Static analysis result for SHA-256 50bb169ed45ece44…

MALICIOUS

PDF

65.7 KB Created: 2021-03-01 12:45:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d7d56a027314499f4565c6fa8b4b6c95 SHA-1: 895b39358270e363d35e075716ecf59df93dd2ca SHA-256: 50bb169ed45ece4461408148592ae4a953cfbbf969627aaf80168e5f141c5533
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://gimoguvi.ru/award?keyword=how+to+program+garage+door+remote+and+keypad PDF link annotation
    • http://crubr.space/warcry_faction_cardsv0lyt.pdfIn PDF document text
    • http://salet.store/cramped_in_a_sentence3ad5a.pdfIn PDF document text
    • http://kexufiloruruki.22web.org/27020043909.pdfIn PDF document text
    • https://fiwugepupuladav.weebly.com/uploads/1/3/4/7/134740110/124c23ee8.pdfIn PDF document text
    • https://femidizori.weebly.com/uploads/1/3/4/6/134684525/worasulowup-sulip.pdfIn PDF document text
    • https://nakofasojerurog.weebly.com/uploads/1/3/4/5/134592478/8639887.pdfIn PDF document text
    • http://prodson.space/what_size_is_3_4_classical_guitare9v8m.pdfIn PDF document text
    • https://tumafivefaj.weebly.com/uploads/1/3/3/9/133999435/49cde.pdfIn PDF document text
    • http://tehnotop.site/v_for_vendetta_film_poster2xpnj.pdfIn PDF document text
    • https://genezekanoz.weebly.com/uploads/1/3/1/4/131413678/jakiforujipix.pdfIn PDF document text
    • https://roxadaxakisa.weebly.com/uploads/1/3/1/4/131437443/zavuva_levezi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382003/normal_603c59ef734ed.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://toguzojokes.epizy.com/hamlet_movie_mel_gibson_cast.pdfIn PDF document text
    • http://pikowejinaruwut.rf.gd/27449398966.pdfIn PDF document text
    • http://xibogowidam.epizy.com/futopesezusofasala.pdfIn PDF document text
    • http://porilebunenagu.rf.gd/how_to_use_wahl_beard_trimmer_to_cut_hair.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_off0000c6ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6CE 5288 bytes
SHA-256: d46a8f833784ce8686a3aabcff8cb35181573bf64237b00a01fdebaca5a92324
font_01_sfnt_off0000d8cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CB 9644 bytes
SHA-256: ef5db919b188925859e9ad16957e62b642def2eea23c72849430cbd942ac035b