Malicious PDF — malware analysis report

Static analysis result for SHA-256 947ba6e5cdfe300d…

MALICIOUS

PDF

64.3 KB Created: 2021-02-09 17:19:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 68d093c175e79b4c3ffd21f8d0a652b7 SHA-1: 60bb309ee4f0c2cbe2bbd4cde3eba4644fcf8f22 SHA-256: 947ba6e5cdfe300d2218d065bbc125cce593c216c98b4964272be19da4f170e6
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://bologen.ru/aws?utm_term=descriptive+and+limiting+adjectives+exercises+pdf PDF link annotation
    • http://supernefritroller.xyz/953595127485q0xe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465688/normal_601cb163c30da.pdfIn PDF document text
    • https://cdn.sqhk.co/rifokinimito/iFm81je/rock_climbing_near_me_for_adults.pdfIn PDF document text
    • http://qlemelest.online/dobokodagewaruysz6y.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375093/normal_5ff9741e063e3.pdfIn PDF document text
    • http://faceskinagainbeauty.xyz/wilalovizexajelin1csk.pdfIn PDF document text
    • http://stopnutristrike.ru/reported_speech_comicsvpnxt.pdfIn PDF document text
    • https://wutejaguruloz.weebly.com/uploads/1/3/1/8/131871665/nesewe.pdfIn PDF document text
    • https://nuxofenaf.weebly.com/uploads/1/3/5/3/135306259/forepewigomil_taromovasaxuz_foboto.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494883/normal_601276d6873fa.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/xupovobejanam/80892399564.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/pu_lahore_admission_form.pdfIn PDF document text
    • http://modefumagija.epizy.com/71145317803.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/nuvuj.pdfIn PDF document text
    • http://rifezovepon.rf.gd/kosuziwevizinorigelebufaf.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_off0000beeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEEB 5676 bytes
SHA-256: 06755c32d5bfda16d81af9ce61d51c2f38743ff3e27fc5a0f717d13f4bdc9c48
font_01_sfnt_off0000d23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD23F 9984 bytes
SHA-256: 0e27fa6d297486b848b30452d6a50cf9d3e1a420e6bb512a715f2f5df2c6452f