Malicious PDF — malware analysis report

Static analysis result for SHA-256 06939e31541c28ad…

MALICIOUS

PDF

70.0 KB Created: 2021-02-28 11:07:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f32101e0f4389b0c20d07775272a2860 SHA-1: f6617d15f193889362aeb0b8ce97a4a812bdb0b7 SHA-256: 06939e31541c28ad3b468ca5715d80f80d5cff8db4186d2efaf7926fd68b39db
126 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
  • 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://ponafet.ru/wix?keyword=snows+cut+wilmington+nc PDF link annotation
    • https://wezawemexa.weebly.com/uploads/1/3/1/4/131410399/1276209.pdfIn PDF document text
    • https://cdn.sqhk.co/joxonorapa/ihEOibR/rowemejanev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458163/normal_5fd66f93db1ce.pdfIn PDF document text
    • http://hdsamara.ru/96044047040mlxi2.pdfIn PDF document text
    • https://nevozijefase.weebly.com/uploads/1/3/4/7/134748823/jeladotivefutaji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503050/normal_5fd100607d2be.pdfIn PDF document text
    • https://wixugowodekawa.weebly.com/uploads/1/3/1/4/131438135/wugefa.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzekofuwe/yKRxlha/how_to_start_your_own_youtube_channel_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401712/normal_5fea3fd664890.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447280/normal_6023f61a959f0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gosovugan.epizy.com/interactive_brokers_group_inc._annual_report_2017.pdfIn PDF document text
    • http://nerokezixuzat.epizy.com/93759097310.pdfIn PDF document text
    • http://talakukatutevib.epizy.com/35372399667.pdfIn PDF document text
    • http://jomusosufetobox.rf.gd/cobra_29_lx_eu_cb_radio.pdfIn PDF document text
    • http://xazexunipix.epizy.com/bojoxeroper.pdfIn PDF document text
    • http://gadoxijumulop.epizy.com/blast_furnace_guide_gold_bars.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_off0000d47b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD47B 5008 bytes
SHA-256: 7496f3a4ee2be2125704182d571a9706cb2a696279f5a8d23a2fba0712ba7bda
font_01_sfnt_off0000e58c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE58C 10920 bytes
SHA-256: 66469faabcb0f7dc0b1c529da2f9bbb83153469430a4c71ee166f3863d7ac59f