Malicious PDF — malware analysis report

Static analysis result for SHA-256 b68ebbc68a3b17d5…

MALICIOUS

PDF

45.0 KB
MD5: acb2abf284d4e559bcf57d554c91f32a SHA-1: 7e65019b2a6afc390d59685530960a468c9d488b SHA-256: b68ebbc68a3b17d5690316792c4749f34587b6ef1d9ac05c467e4b16264b4494
76 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings and the presence of JS streams. ClamAV detection as 'Pdf.Exploit.Agent-36128' strongly suggests exploitation of a known PDF vulnerability. The embedded JavaScript is likely responsible for executing a malicious payload, although its specific actions are not detailed in the provided evidence. The document body content is not indicative of a specific lure.

Heuristics 3

  • ClamAV: Pdf.Exploit.Agent-36128 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Exploit.Agent-36128
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0008_000.js
370152f035072dabecebb9dd7f49b98d5b53f73a7d8f61c245b741dfcb72996f		 pdf-javascript-stream PDF /JS object 8 at offset 0x1E7 45305 bytes
legacy_pdfkit_stage_000.js
0c94724af81e4cdd138c424bdf6c874dc1ba7d95b576f19b4adf07b1b5b19931		 deobfuscated-js double percent-decoded annotation JavaScript at offset 0x1E7 33047 bytes

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