Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ddfe620b66e0163…

MALICIOUS

PDF

82.0 KB Created: 2021-04-09 06:07:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 2a95e4faddd1c78ce5adac14f31b49ed SHA-1: 2f225fcb61e59a7e07c7d8f62b3e8017132a0083 SHA-256: 7ddfe620b66e016397527cebbc8841cb1059ec51c0bd9161764b46cadac553ad
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains an embedded URL that redirects to a malicious domain, likely serving a phishing or malware payload. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though partially corrupted, suggests a lure related to McDonald's keto options, which is a common phishing tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/strik?utm_term=what+can+i+have+at+mcdonald%2527s+on+keto PDF link annotation
    • http://boxijogirexu.medianewsonline.com/lajixajinijizonurinal.pdfIn PDF document text
    • http://sedisifoxe.22web.org/gabizovodad.pdfIn PDF document text
    • http://valuburikodajad.medianewsonline.com/26771768941.pdfIn PDF document text
    • http://zijixiteluwek.scienceontheweb.net/can_cochlear_implants_stop_working.pdfIn PDF document text
    • https://cdn.sqhk.co/dusujukakal/jdyjeQf/vatabalifegede.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386828/normal_6041ed338b542.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/lofineleforisoxozotonu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412170/normal_606e4a989eb26.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/Fijjhjp/vitamina_b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485172/normal_5ffdd26397f29.pdfIn PDF document text
    • https://cdn.sqhk.co/botuvawezej/c3s9hjW/61237125012.pdfIn PDF document text
    • https://cdn.sqhk.co/zobelekivix/hgjhCia/93629897033.pdfIn PDF document text
    • http://bewizasosu.sportsontheweb.net/mecanismo_renina_angiotensina_aldosterona.pdfIn PDF document text
    • http://somixewavado.sportsontheweb.net/schengen_visa_application_form_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489058/normal_6055579b866a6.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/xokebore/cheppave_chirugali_mp4_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/dekafa.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/2009_audi_a4_cabriolet_owners_manual.pdfIn PDF document text
    • http://kutadomirezo.rf.gd/joe_mettle_turning_around_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/ambito_educativo_definicion.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_off000100cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100CD 5256 bytes
SHA-256: 0754dd16857c8f4016a18021b0137f93a31a1eaeb56dc58ddb19ff631e715d94
font_01_sfnt_off0001129a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1129A 11344 bytes
SHA-256: 90379d50d42c6f8ebafde7e88711b94d48d02cfb4f8e2592ea51ce01a13ad079

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