Malicious PDF — malware analysis report

Static analysis result for SHA-256 eed4030315ebc908…

MALICIOUS

PDF

68.0 KB Created: 2021-01-31 10:31:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 49586b5d1c90fa5646007cbb27da8eab SHA-1: 1451d36ce9c8d21c12bf5b4ed2461c0d2c2dc63c SHA-256: eed4030315ebc908fb73af497d933fd8d39d4a005e781d88ed48c70d91311675
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://yafferge.ru/aws?utm_term=agenda+laboral+2018+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4414500/normal_600ae1199e190.pdfIn PDF document text
    • http://roskycnmx.com/anti_tank_guided_missile_nagh3lc2.pdfIn PDF document text
    • http://hargotel.xyz/20463238947dqkgj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380522/normal_5ff7115cb1f6b.pdfIn PDF document text
    • http://idealslimitaly-ufficiale.site/duxagawibowaihx3e.pdfIn PDF document text
    • http://wagajikis.iblogger.org/tukewazov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381320/normal_6007cc01d1108.pdfIn PDF document text
    • https://bemetezebore.weebly.com/uploads/1/3/4/8/134882820/8217d9b6a040b.pdfIn PDF document text
    • http://timecodes.net/bd_recharge_mobile_top_up_solutionswx77q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409255/normal_5fc5763edf03c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mopufeva.epizy.com/ottawa_senators_2017-_18_media_guide.pdfIn PDF document text
    • http://fositelorefux.epizy.com/darkness_rises_mage_pvp_guide.pdfIn PDF document text
    • http://vonimamodiji.rf.gd/poem_analysis_essay_example.pdfIn PDF document text
    • http://letituxis.epizy.com/92457689613.pdfIn PDF document text
    • http://wepaxilex.epizy.com/10402671233.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_off0000cae9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE9 5680 bytes
SHA-256: f1a0abe49ac8e12cfe863b2824506f395a5735257299695c6f803363258fc7dd
font_01_sfnt_off0000de51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE51 11128 bytes
SHA-256: 044b1edb12433d77b763f26a763e77d6425968404cfe635649028974814a012b