PDF malware analysis — malicious · dc7700512a0424d1

MALICIOUS

PDF

4.0 KB

MD5: 48f46799fd35e74ed666d06cdc6c03e4 SHA-1: 2403954a364db6f2f5a3f4a10f00d648b3f1bf9f SHA-256: dc7700512a0424d11d8a3b8c5b7bd551eb931976ebedaef7e845608df17bb15b

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File: User Execution: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical ClamAV detection of 'Pdf.Dropper.Agent-7685834-0' strongly suggests its malicious nature. The presence of eval() and String.fromCharCode functions within the JavaScript points to obfuscation and dynamic code execution, likely to download and run a secondary payload. The extracted JavaScript files, 'javascript_obj0013_001.js' and 'acroform_b64_00.js', further support this, with one being identified as a deobfuscated JS stream.

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7685834-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7685834-0
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `f15ee0ca229c4e1231e930c117769a34926b665766c8d956e4d79b413621bfa3`	pdf-javascript-stream	PDF /JS object 13 at offset 0x368	6333 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`acroform_b64_00.js` `1c58942926bd475b017891555bc40ac88b39d84a07d20a2b7f92935fbce19363`	deobfuscated-js	PDF AcroForm base64 (decompressed) at offset 0x99D	3595 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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