Pdf.Dropper.Agent-7212606-0 — PDF malware analysis

Static analysis result for SHA-256 509759ce99d34cdc…

MALICIOUS

PDF

5.5 KB
MD5: 5969c500c85e985c8ed0869e2e8ba8e2 SHA-1: c24198d72b645660fce4755ad6eb0578b594211d SHA-256: 509759ce99d34cdcb972b118161be5c0c8b685df0073b957c556d251ac650aa8
84 Risk Score

Malware Insights

Pdf.Dropper.Agent-7212606-0 · confidence 95%

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

The critical ClamAV heuristic identified the file as 'Pdf.Dropper.Agent-7212606-0', indicating a known malicious PDF dropper. The presence of embedded JavaScript, confirmed by multiple heuristics, strongly suggests that the script is responsible for downloading and executing a secondary payload. The document body content is unreadable, but the combination of the ClamAV detection and the JavaScript suggests a typical dropper behavior.

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7212606-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7212606-0
  • 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.
  • syncAnnotScan annotation-staging primitive low PDF_FOXIT_SYNCANNOTSCAN
    PDF JavaScript calls syncAnnotScan() — a no-op annotation-enumeration primitive used by exploit-kit JavaScript to stage payload reads from annotation /Subject fields before eval(). Not a vulnerable sink itself; rarely seen in legitimate PDFs. (matched in decompressed stream)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0005_000.js
a3319192cac6d4dc4eeb6af2d736b0ffec979b23116a003bc7c23382761c32a5
pdf-javascript-stream PDF /JS object 5 at offset 0x148 733 bytes
deobfuscated.js
6195eb523c28972157e71bb487cff138eb2bef298adbae91375dd6a6f331b702
deobfuscated-js PDF JavaScript deobfuscation pass 5426 bytes