PDF malware analysis — malicious · c45b183aca038d75

MALICIOUS

PDF

2.6 KB

MD5: 7d07c7698a622930e70cf4a69ca0deb6 SHA-1: 39890e411f1cb1dee7e12d118c881b7fd350d5d1 SHA-256: c45b183aca038d758eed07d6405bf23181e49c9f699c75a40461db7dd6868bcc

136 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including 'PDF_JAVASCRIPT' and 'PDF_JS'. A critical heuristic, 'PDF_ANNOT_SUBJECT_MARKER_EVAL_STAGER', suggests the JavaScript is used as an eval stager, likely to download and execute a secondary payload. ClamAV also detected the file as 'Pdf.Exploit.Agent-36064', reinforcing its malicious nature.

Heuristics 4

Annotation subject percent-decoding eval stager critical PDF_ANNOT_SUBJECT_MARKER_EVAL_STAGER

OpenAction JavaScript forces annotation enumeration, reads an annotation /Subject payload with getAnnots(), rewrites marker bytes into percent escapes, decodes it with unescape(), and dispatches it through eval. This is a high-confidence exploit-kit staging pattern. It is intentionally not mapped to CVE-2009-1492 unless getAnnots() itself carries the crafted integer or long argument shape for that vulnerability.
ClamAV: Pdf.Exploit.Agent-36064 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36064
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `a5c8f0f722df4dd9876a0087e1eee65bd3020c5995f94f6729f7e17f3f3677a0`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1A4	331 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.