Malicious PDF — malware analysis report

Static analysis result for SHA-256 95e038a44722f74e…

MALICIOUS

PDF

73.1 KB Created: 2021-03-02 23:28:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: db18f366784b323434ec2ab876390264 SHA-1: a3621e3f9f773cba6ea49c9ff29ed9d232b0f64c SHA-256: 95e038a44722f74e70e096188bc56d065791bcaa21e1146aedfbad884331b7a9
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://jacksth.ru/wix?keyword=ucla+sdn+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486971/normal_5fdc554c6d198.pdfIn PDF document text
    • http://jiwitoletazadag.iblogger.org/lakagoxoleporaladobok.pdfIn PDF document text
    • http://grantmedica.ru/pisilibe2df76.pdfIn PDF document text
    • https://xosulokut.weebly.com/uploads/1/3/4/4/134466674/b7ee9fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391898/normal_5feaff6890e7a.pdfIn PDF document text
    • http://gesitaxipuvav.22web.org/libro_azul_2015_autos_gratis.pdfIn PDF document text
    • http://prosale.company/punokitibozitadalizuehdmw.pdfIn PDF document text
    • https://motisodufar.weebly.com/uploads/1/3/5/4/135400919/rakofi-wileratiwa-miwaga-pixamuzefapus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451970/normal_601b600757a9d.pdfIn PDF document text
    • https://zijunuriv.weebly.com/uploads/1/3/4/8/134892089/6841fb1.pdfIn PDF document text
    • https://fekebejoluxoji.weebly.com/uploads/1/3/4/3/134309121/4279352.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483624/normal_5ff624b822ac0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403681/normal_6028cee2d2597.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fosekor.epizy.com/9th_grade_math_word_problems_worksheets.pdfIn PDF document text
    • http://kigejumepit.rf.gd/business_name_registration_form_for_partnership.pdfIn PDF document text
    • http://rerodijunenema.epizy.com/butterflies_are_free_play_script.pdfIn PDF document text
    • http://raburuterurova.rf.gd/python_web_programming_step_by_step.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_off0000e28f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28F 5308 bytes
SHA-256: c65ffba31ab839fcb163042486e44ae1b8a5c8f264cabeb4cb211fea58934202
font_01_sfnt_off0000f4b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B0 10196 bytes
SHA-256: 1edb1a3f0b6ef3a3077e3feb64504ddb8d1ae272e8257181e3b6fdaca2ab6984