Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb8ef04de549500c…

MALICIOUS

PDF

67.2 KB Created: 2020-11-17 08:41:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 69e13d32cf3e7b8a2fad0b631472d2a3 SHA-1: 2c57a0a94f60eecd64149c5e44bda99336d0b0d1 SHA-256: bb8ef04de549500c8589766d754dd7fb59d049e4d138875b2e252d029300f672
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 0.9997

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://traffking.ru/strik?utm_term=o+feio+dachshund+1966+filme PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/puxovasituludep.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/jodatatesule.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/bosquejos_escritos_para_predicar.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/january_2016_chemistry_regents_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/90333730810.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/50816845482.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/sonex_sanitary_fittings_price_list.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/22646533411.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/vitamix_dry_container_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/pewibim/zadatekonulakekidokopet.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/povepuvupudilodakid.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_off0000ca7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA7A 5552 bytes
SHA-256: 5852f8c35cfb6b8097e7c6cc6f9ea6483a4cbec74d5ab4098879f44ebb8ad9f1
font_01_sfnt_off0000dd3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD3E 10180 bytes
SHA-256: 7a4496caef25e6ec73efa58ce2b5f50fda7bbdcf7f6441a84356706d0fdc857d

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