Malicious PDF — malware analysis report

Static analysis result for SHA-256 3947e35d0be22548…

MALICIOUS

PDF

68.4 KB Created: 2021-02-24 14:18:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 135d9890913200274f9e8c67765349fa SHA-1: a82c8af8bf5923fad6229022f0de8e0286c4e3d6 SHA-256: 3947e35d0be2254819c3a7118ad31cc5648d9b55be96ce2ea8f307e88129a1a8
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=anime+episode+1+english+dubbed+romance+comedy PDF link annotation
    • http://ecoterritory.store/glade_air_freshener_safety_data_sheetq8sm7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411717/normal_5fe62a408a8bc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412151/normal_5fe1923d2bad1.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/bgfpgjv/7685897104.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413125/normal_601dd171cde25.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482413/normal_5ff1d818ba924.pdfIn PDF document text
    • http://tumbaa.space/wh_phonics_worksheetsfu7p0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368760/normal_601e38a4011fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455684/normal_602d790f7c8df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466666/normal_5ffcd919de0d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378628/normal_6031867952723.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371265/normal_5fcbfe899a250.pdfIn PDF document text
    • http://pubolovuwete.iblogger.org/16705695999.pdfIn PDF document text
    • http://stylecurtains.com/60078253652o0ki7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/desorapetibowopa.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/isc2_ccsp_cbk.pdfIn PDF document text
    • http://poradenojipedu.rf.gd/garrett_ace_250_user_manual.pdfIn PDF document text
    • http://kojodidekojamu.rf.gd/best_tecno_android_phones_in_nigeria.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/nageropomisifa.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/activepresenter_64_bit.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_off0000ccb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB5 5768 bytes
SHA-256: ea354655b43802c17643089dee1a57f39927925aa69a1036cacb4cf172242dbb
font_01_sfnt_off0000e037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE037 10532 bytes
SHA-256: adeade10870e5d7cc1778d2034aa0215a2110bf95edab774b9372ca2555129ad