Malicious PDF — malware analysis report

Static analysis result for SHA-256 df295cfeb2ab93f3…

MALICIOUS

PDF

70.3 KB Created: 2021-03-16 12:43:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 2ef60f4550cb21efeac55b9292f5e94a SHA-1: 2466226727137bb345817c6ea9150276db342ae6 SHA-256: df295cfeb2ab93f35c935c6bbcd9a579d280211aabc054be5978fff464a6e177
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs, including one that appears to be a phishing lure related to Aadhaar card password removal. The presence of embedded URLs and the overall structure suggest it is designed to redirect users to malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://xezojetit.ru/award?keyword=aadhaar+card+pdf+password+remove PDF link annotation
    • http://circulshtangcalip.website/jebadanulotakakic6lh3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380384/normal_6044e5a610a76.pdfIn PDF document text
    • https://zomasaxejis.weebly.com/uploads/1/3/4/3/134325580/goneta.pdfIn PDF document text
    • http://detonic-ufficiale.website/kathmandu_nepal_imagesfmemw.pdfIn PDF document text
    • http://azakalaza5.xyz/9260819411530pgm.pdfIn PDF document text
    • https://jekufagiz.weebly.com/uploads/1/3/0/7/130739150/pupiruvopito-nesefafa.pdfIn PDF document text
    • http://creditscoreusa.info/vokixurep0oa9y.pdfIn PDF document text
    • http://feldhaus-klinker-plitka.ru/zikevewuxosemeeab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451210/normal_604cc5545648a.pdfIn PDF document text
    • http://kengoru.space/17351699733t4tev.pdfIn PDF document text
    • http://gravkamen.ru/merrill_lynch_corporate_credit_cardi53c1.pdfIn PDF document text
    • http://winsbig.space/xoveridedaxiduvijetuzujone3f.pdfIn PDF document text
    • http://nosinoski.shop/tigimd564e.pdfIn PDF document text
    • http://giocodigital.fun/vowoketeturimolojuudlbt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387814/normal_604d03789e68c.pdfIn PDF document text
    • http://antonioita.fun/kedufovisipmktp.pdfIn PDF document text
    • https://xipuruvu.weebly.com/uploads/1/3/4/6/134654852/xanokem.pdfIn PDF document text
    • http://twoup-viktoria.online/plantronics_model_m70_pairingw9177.pdfIn PDF document text
    • http://telgrm.site/30110884534elyn8.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/wotodedaruzuk/expecting_more_the_4th_trimester_workout.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/amiga_os_3._9.pdfIn PDF document text
    • https://s3.amazonaws.com/zinudipir/cursos_de_ingles_en_linea_gratis_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/excel_read_sheet_name_from_cell.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/wikutigulitajapetojavuwi.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_off0000d430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD430 5504 bytes
SHA-256: 421a2cfc702b3018cf018b2ebfe4afe6b58f208eb51cc348d5abc5c4b91ffaee
font_01_sfnt_off0000e6d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D8 10808 bytes
SHA-256: 473f0fa5085a05fe3cf9c8d425051b6dacbe6b66967296c507204acdf871d25d

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