Malicious PDF — malware analysis report

Static analysis result for SHA-256 e25f18302cf7de97…

MALICIOUS

PDF

72.6 KB Created: 2021-03-01 10:21:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c020ce6779666af4d92fbf1c672b0f37 SHA-1: ce1e72ca8f09431ee091eb29a12d952336e56669 SHA-256: e25f18302cf7de97385fdccef1e36730d3cc42f004879a31d22ecf8f342abb0a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/award?keyword=age+of+exploration+vocabulary+worksheet+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4373999/normal_5ff9a63ee0390.pdfIn PDF document text
    • https://wawisutifefot.weebly.com/uploads/1/3/0/7/130739430/manirepe.pdfIn PDF document text
    • http://safetymirrors.xyz/my_sister_the_vampire_switchedoa1b0.pdfIn PDF document text
    • http://wspring.space/scaled_agile_epic_template99vpm.pdfIn PDF document text
    • http://insta-sale.site/it_salary_rangestt73r.pdfIn PDF document text
    • http://csxmoney.info/applied_anatomy_of_upper_limbn159s.pdfIn PDF document text
    • https://lezanaxowap.weebly.com/uploads/1/3/2/6/132696506/dubobalige-napazewojuzevo-fefitojodi.pdfIn PDF document text
    • https://xavujome.weebly.com/uploads/1/3/0/7/130739328/94420f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445892/normal_5fe1a3022e2c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459780/normal_603c3347bf1c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419820/normal_60395b80e288a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368975/normal_6007ba3183733.pdfIn PDF document text
    • https://popiliguji.weebly.com/uploads/1/3/4/2/134265512/zupodixipemupinor.pdfIn PDF document text
    • http://sehq.xyz/vujimikovabikizinipo81dzg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469135/normal_603c388a04885.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402503/normal_5fdc2457c65c3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000df4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4A 5792 bytes
SHA-256: 1510177c4e7948a4b1f3f1056b61fa586f2e31f385f8d7e74226d6413039a0ed
font_01_sfnt_off0000f327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF327 9964 bytes
SHA-256: 975dcfa6358ff8fdf4d9a4073fba9d83760fdea20f1157a50d5df780c0971364