Malicious PDF — malware analysis report

Static analysis result for SHA-256 14d47549de34fb53…

MALICIOUS

PDF

75.1 KB Created: 2020-12-25 15:50:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: e7183a775261f5288aafa0ca9850f4ef SHA-1: 129ebfbfea1d0aec3db5dc38233e5c895496b678 SHA-256: 14d47549de34fb53a94c515d74bfbcb5bea767e07e6c298686090a1f5c3313d7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to a URL that appears to be a lure for downloading an Android application mod, suggesting a phishing attack. The presence of multiple embedded URLs further supports the malicious intent.

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=angry+fighter+attack+mod+apk+android+1 PDF link annotation
    • https://cdn.sqhk.co/woxemevimox/jg2e8hi/nail_designs_autumn_2020.pdfIn PDF document text
    • https://nosisakapu.weebly.com/uploads/1/3/4/7/134773138/nanakupax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484834/normal_5fbc2d2b78b6e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470027/normal_5fca98e7196f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403531/normal_5fb52121163bd.pdfIn PDF document text
    • https://cdn.sqhk.co/sofaxuleruri/RFfWf4p/411761228.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476783/normal_5fd80d3e71548.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447903/normal_5fb52f1fd2901.pdfIn PDF document text
    • https://wixotavu.weebly.com/uploads/1/3/4/7/134764887/6918248.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369498/normal_5fdc3726ee4d0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDBC 5568 bytes
SHA-256: 5593370bf4afb4208e96a92ea3d088062e1322083a155087735a7c5b7a264178
font_01_sfnt_off0000e096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE096 12340 bytes
SHA-256: ef8bc6b542e3008df1291540ba676b58042cf4fcd317a5b8a4d8696391fa0578
font_02_sfnt_off0001088b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1088B 16576 bytes
SHA-256: d74a6de6330564df7d07d5a5694d043d1cbd4d93037674419b334a7a3f601ec0