Malicious PDF — malware analysis report

Static analysis result for SHA-256 cac15151959e2253…

MALICIOUS

PDF

77.1 KB Created: 2021-07-14 00:26:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: e8e7e2c66461330292f8e56ccb16ffd9 SHA-1: 64fc5dea8ed71b724722cfbf10e1847fd528cdfb SHA-256: cac15151959e2253861583816847a06b90786e842bca846966f10a8f723ee746
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a malicious PDF by ClamAV, specifically as 'Pdf.Phishing.Trojan'. It contains an embedded URI that points to content related to downloading live football TV for PC, suggesting a phishing or scam lure. Although no scripts were explicitly extracted, the presence of embedded URIs and the phishing detection indicate a likely attempt to trick the user into downloading further malicious content or visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier clean score 0.2489

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://feedproxy.google.com/~r/sq/ugae/~3/gOBB6uaVNRA/square?utm_term=download+live+football+tv+euro+for+pc PDF link annotation
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec7e438bb04542cee3fcab/1626111555294/46704903720.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec874c72e2584f2463b22b/1626113868685/building_telephony_systems_with_opensips.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://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_off0000cb87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB87 10836 bytes
SHA-256: e796f708e45c17f0620807203ac1dd5e43dfcb38ec52153d91a4219c1b71e145
font_01_sfnt_off0000e472.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE472 16976 bytes
SHA-256: 5ca3765cb6926169242f1a20294162d4b70212e36d414dddbae5f3a8151f83c8
font_02_sfnt_off0001107b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1107B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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