Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d717e30d3776dc7…

MALICIOUS

PDF

75.8 KB Created: 2021-03-29 17:54:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: cc69ec750a27e375965fe3673729c27d SHA-1: bd1a36fccfbf099626d292481a74187747f5ad49 SHA-256: 1d717e30d3776dc77e4fbaa070cfda210badcec32a3e6a56f1df8cdefc6311e7
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple embedded URLs, with one prominent URL pointing to a site that claims to offer a hacked version of a game. This suggests a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving exploitation of PDF vulnerabilities to redirect the user to the malicious site.

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://xezojetit.ru/wix?keyword=drag+race+demon+deluxe+hacked PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4474191/normal_6007375cef754.pdfIn PDF document text
    • http://wopudidadufi.22web.org/how_to_enable_primary_network_on_ubee_router.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366969/normal_604d8ea63a557.pdfIn PDF document text
    • http://helpcenterbusiness.xyz/software_engineering_interview_questions_and_answers_for_freshersmepcl.pdfIn PDF document text
    • http://lyudi23.ru/notuvafisixiwonitigutif97l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453889/normal_5fdf41b56a3ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404730/normal_6025022bcad4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368998/normal_602d20546193e.pdfIn PDF document text
    • http://blekrossi.ru/eba_guidelines_outsourcing_agreementslri7h.pdfIn PDF document text
    • http://gawivekarebuvus.22web.org/excel_vlookup_formula_example.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385417/normal_60061e867b7cb.pdfIn PDF document text
    • http://tk-time.site/79279869408sljzw.pdfIn PDF document text
    • http://nutristrike-shop.ru/buwonijakodojaminukegofzbx1x.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://wodutedemozaw.epizy.com/gemasidiwa.pdfIn PDF document text
    • http://borobosen.rf.gd/cashew_nuts_pic.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/vafekawitinuwodibedu.pdfIn PDF document text
    • http://xuwewajefifa.rf.gd/sozakagigazo.pdfIn PDF document text
    • http://zajegugolex.epizy.com/lojokumuguxavosu.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/usmle_first_aid_2019_errata.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD26 5060 bytes
SHA-256: 5fa9205f4fa75b797a4b5116c686db8eee5bd77aa35a29bfb446e6244032e86e
font_01_sfnt_off0000ee1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE1B 11180 bytes
SHA-256: 8153b645507411f90be8ec212fcb3c03e7c207c6a8c73156c75a00cc17fcf4cf
font_02_sfnt_off0001140f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1140F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.