Malicious PDF — malware analysis report

Static analysis result for SHA-256 d25ad1f768b1a00f…

MALICIOUS

PDF

61.5 KB Created: 2020-12-09 13:49:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: c0a13308ec0b316cb70e7f6f806a0d60 SHA-1: bd47c0a1adf6e9ba25bba36e8bd0d36a2ba4676f SHA-256: d25ad1f768b1a00fcc079d38d6ac6e969e9b5e4dfe707bd7d1b2650ba8c08432
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 0.9994

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://traffine.ru/strik?utm_term=the+scientific+revolution+worksheet+pdf PDF link annotation
    • https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/refaxerezegekuroj.pdfIn PDF document text
    • https://finolija.weebly.com/uploads/1/3/4/6/134625313/a428b74eae1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392656/normal_5fcf6eda44094.pdfIn PDF document text
    • https://jutisopi.weebly.com/uploads/1/3/4/7/134775863/1646254.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418188/normal_5fbf8f4a9b5c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493266/normal_5fc562a794f3c.pdfIn PDF document text
    • https://marulokovew.weebly.com/uploads/1/3/4/6/134611896/sunesumotojizina.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377924/normal_5f9401c5222a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476272/normal_5fb72a3870b39.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fc1b2877d0c8f249d4667bd/t/5fc80c985d06c957858ba71c/1606945944613/57035984052.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc36b8e2e537a05ef192680/t/5fc4d3b4e18c5c478e9348e8/1606734783850/arma_3_csat_retexture.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a92d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA92D 5080 bytes
SHA-256: f5abc868be171223ae112572ade7d88cd4bba6b1b31946093e86f20754acee3b
font_01_sfnt_off0000ba78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA78 9620 bytes
SHA-256: 0b4a12f2d58a9f329620021d054f7f78e98bbda2a6cb2e64ab5870b37162c9c7
font_02_sfnt_off0000db4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB4F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2