Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e9a1190daa9110c…

MALICIOUS

PDF

117.0 KB Created: 2021-02-27 05:32:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 50b2aa56767a4e74bd89bc6a40e44527 SHA-1: 9accca8a3767b291b1c082d85615a5fa6537ebb3 SHA-256: 7e9a1190daa9110c88e6285fbcd154d7e6824c557e09a7c176f581e5d12685d3
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/123?utm_term=grade+9+science+vocabulary+words PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4405895/normal_5fe5783039f4a.pdfIn PDF document text
    • http://kengoru.space/guided_pathways_dcccdyhk4m.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454990/normal_60031c5a30c4f.pdfIn PDF document text
    • http://asia.kiwi/sony_wega_trinitron_21_inch_tv_pricepa4xb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413240/normal_5fdbb5cab5cfe.pdfIn PDF document text
    • http://prostochillforum.fun/943762223327pibe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417998/normal_601814282cdd7.pdfIn PDF document text
    • http://sexedate69.site/jabikidelivubinidesuk6xjlv.pdfIn PDF document text
    • http://iranianvc.com/house_on_mango_street_quotes_about_sallyswwnb.pdfIn PDF document text
    • http://sqrab.top/rarogixac9ks4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379483/normal_6002d5becfd1d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407552/normal_5feafabf37e05.pdfIn PDF document text
    • http://procripton.com/94933865036cr93i.pdfIn PDF document text
    • http://hangookoil.ru/beano_comics_free_downloadh81y7.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/mizeteb/gikuwi.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/28435970831.pdfIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/sqlite_android_query.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_off00018ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18ECB 5512 bytes
SHA-256: 536a38914fc6974595a4e63cfbda3efc96df910e6f492df69b5628b8fd91068d
font_01_sfnt_off0001a1ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A1AC 11080 bytes
SHA-256: 0869943253fe2692346d0851346c8717c3519b0f64bec279205a5611a5b38a66