Malicious PDF — malware analysis report

Static analysis result for SHA-256 47cf398b7deb4817…

MALICIOUS

PDF

60.2 KB Created: 2020-12-22 15:47:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5b6beccaa5df41d9fdfe297d45f9d5e8 SHA-1: 03ac1ab8cfcc1de067a059a9f29796c967876a9c SHA-256: 47cf398b7deb4817a92e278020355399fca81f540e88a8e53000c2e6dabd077f
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 0.9992

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://trafficel.ru/strik?utm_term=coloring+fun+color+by+number+games+online PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427094/normal_5f9b7a1868520.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482002/normal_5fcad6cb81e21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424361/normal_5fd7b2426ccc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419628/normal_5fd1a96105fd4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404739/normal_5fcc797486d41.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379035/normal_5fb7e7658db36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445749/normal_5fbc0b974be65.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/5fc64a715687f52b6ba5cdb4/t/5fcff9457025b80c81701aa6/1607465286166/best_way_to_learn_english_grammar_online_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc50833d49dd124474ed35a/t/5fcbd79836758319a55e48bd/1607194520636/zurejonewavoxomexuboveke.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/anaconda_prompt_for_mac.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_off0000a684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA684 5268 bytes
SHA-256: d20c46bfd66068cdc23be850a8a360c38b2a24e894bbfca3bf9b84dc3ad1f6c1
font_01_sfnt_off0000b856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB856 8664 bytes
SHA-256: 282e7d0288b064108e92e2a13e1562f4a772bc6d21c56a3da7720b2e8d2f869b
font_02_sfnt_off0000d5eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5EB 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71