Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e05ff2d7dc08dc8…

MALICIOUS

PDF

78.3 KB Created: 2021-05-01 03:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: f9d974d9ac938f139f0b885c03908fb2 SHA-1: da904a69f10bcda5ad5676d85a61310b68ace486 SHA-256: 7e05ff2d7dc08dc877bc5badd3edc0131efeecf9a8fd7388410ec53dbca5855f
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://midufefew.ru/strik?utm_term=codigo+nw-1-19+netflix+lg PDF link annotation
    • https://cdn.sqhk.co/wepunajexiju/ghghihm/chase_mobile_checkout_customer_service.pdfIn PDF document text
    • https://cdn.sqhk.co/dekavaka/b9hdQjh/rapids_water_park_in_palm_beach_county.pdfIn PDF document text
    • https://vaxatimiroxak.weebly.com/uploads/1/3/4/6/134617636/31616545.pdfIn PDF document text
    • https://liwufetut.weebly.com/uploads/1/3/4/5/134596667/sitomivo_kesub.pdfIn PDF document text
    • https://soregoba.weebly.com/uploads/1/3/0/7/130739918/pipami-belaxobuno.pdfIn PDF document text
    • https://mafopovum.weebly.com/uploads/1/3/4/3/134322216/xisiboju.pdfIn PDF document text
    • https://cdn.sqhk.co/xobadata/mPEmQtH/53916286976.pdfIn PDF document text
    • https://posofipijetudu.weebly.com/uploads/1/3/1/3/131380531/7315328.pdfIn PDF document text
    • https://kaginugopaz.weebly.com/uploads/1/3/4/3/134310825/8030911.pdfIn PDF document text
    • https://bagawilikazukir.weebly.com/uploads/1/3/1/0/131070307/lorezagemejoj-lutabowo.pdfIn PDF document text
    • https://zubikazosiz.weebly.com/uploads/1/3/4/7/134761183/wetosekisej_joputuposamodug.pdfIn PDF document text
    • https://wixexiwe.weebly.com/uploads/1/3/5/3/135316610/degazezepijow.pdfIn PDF document text
    • http://fudazozotakaxal.mywebcommunity.org/alejandro_dumas_libros_gratis.pdfIn PDF document text
    • http://tifoxikutawe.sportsontheweb.net/45202881994.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/fipijife/primary_gyratory_crushers.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/55450595409.pdfIn PDF document text
    • https://s3.amazonaws.com/wozoxub/92319815485.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/59459265384.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/zomunapigogu.pdfIn PDF document text
    • http://gamelaluwer.myartsonline.com/24501487792.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/55995433650.pdfIn PDF document text
    • http://zatuvejamubolo.atwebpages.com/92430123588.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/cardinal_newman_sixth_form_open_day.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/1824205528.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/fifty_shades_darker_hindi_dubbed_download_480p.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/xitimegikujowadijewexe.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_off0000f46c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF46C 4896 bytes
SHA-256: fcbb47e8118a4985efc2fce1ba2c6f83419bbef159d55b4f27f070add3d706c0
font_01_sfnt_off00010556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10556 11036 bytes
SHA-256: 1db204bb0e48c01191b6746133b01e43f09513faa598a022befc8c7b127d6dd4

Open this report in the interactive analyzer, or submit your own file for analysis.