Malicious PDF — malware analysis report

Static analysis result for SHA-256 422cd71c084f2dce…

MALICIOUS

PDF

68.2 KB Created: 2020-12-17 02:51:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2369374cbec23aad64a738af4aecf5ac SHA-1: bba65152db30fe9422cbd03e0fde178ec48bc49a SHA-256: 422cd71c084f2dceaea5bdd2f2cb08c091421810b1674b5a2dd33141f7f84f9f
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://trafftec.ru/strik?utm_term=what+is+an+affidavit+of+correction PDF link annotation
    • https://vebupixe.weebly.com/uploads/1/3/4/8/134854050/poxavuzagu_bojasem_suxev.pdfIn PDF document text
    • https://gemitipob.weebly.com/uploads/1/3/4/4/134474898/joduma.pdfIn PDF document text
    • https://jivoxafur.weebly.com/uploads/1/3/4/3/134382284/16f57.pdfIn PDF document text
    • https://dofukuligofevo.weebly.com/uploads/1/3/4/8/134869200/0cb378.pdfIn PDF document text
    • https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/6121330.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/xezonijida/whatsapp_plus_free_for_iphone.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6cb2f3de5e49b55cfb10/1606380723074/miwifoxosalijavenusazibo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc54b94084698658e7b646c/t/5fcdcdac7ae85b53b2b2de87/1607323055739/nixamowefagapirutupobikij.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/manual_for_ge_dishwasher_gdt695ssjss.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/best_job_application_letter.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/dorujebiwiribepidobiku.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7b8b25426f52a30e0d42f/t/5fcf48c50ff3944fc5571e0d/1607420108449/fijuroluxolamazexobonopod.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_off0000cbe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBE8 5152 bytes
SHA-256: fbec2a17a0f4c710b9a81e18701d75cd8fa867cc477d7e4196933e609d7f002e
font_01_sfnt_off0000dd7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7C 11212 bytes
SHA-256: d2d805bea8d21f61e9afbfb5e8b5cbb5b25f805ae4cf469a429372c81cdeef1b

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