Malicious PDF — malware analysis report

Static analysis result for SHA-256 03158b9077856a1a…

MALICIOUS

PDF

83.1 KB Created: 2021-01-29 23:44:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b80f96f5b3eacebdf25457c09ab20067 SHA-1: 24d6266e894560796f2edac13bde24d6870897c9 SHA-256: 03158b9077856a1a07bee2f502ea3c1961342704fba06dc8e507c707c61e9dcb
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=download%20car%20driving%20simulator%20city In PDF document text
    • http://aycotoro0.xyz/mein_schiff_kreuzfahrt_2020_islandv9pzn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369659/normal_5fcb186699fe3.pdfIn PDF document text
    • http://argo-tourism.com/noxatiw9gi1.pdfIn PDF document text
    • https://cdn.sqhk.co/jetuzama/aUhjRaC/79894730176.pdfIn PDF document text
    • https://cdn.sqhk.co/zolaxadivowe/TY1pCie/55803301471.pdfIn PDF document text
    • http://it50off.info/general_tso_s_instant_pot_shredded_chicken99kus.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/idDjbjc/oxenfree_gameplay_length.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387931/normal_5fdaf95f4cc45.pdfIn PDF document text
    • http://medtechnika1.ru/gokeso2j1hu.pdfIn PDF document text
    • http://znakomstva18x.site/messe_que_tes_oeuvres_sont_bellesq5tae.pdfIn PDF document text
    • http://paktum.pro/safari_magazine_english_free_download_2017aj23i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420037/normal_60121d1be85e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471514/normal_5fc894a52c148.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sujemitusosida.epizy.com/palo_alto_3020_datasheet.pdfIn PDF document text
    • http://bivoxubi.epizy.com/davis_s_drug_guide.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_off00010705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10705 5512 bytes
SHA-256: 0ecd2ac99f13766ccb9cea4536b402bf44a65471354b80d2adb9dd8dcadc4787
font_01_sfnt_off000119d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119D0 11124 bytes
SHA-256: 0cc09d4322f3746120aa4b6252cd54cbf4daf3d2922f41644a80c46272c1e728