PDF malware analysis — malicious · 3db3aa2388c93253

MALICIOUS

PDF

7.1 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: c2dce8b43af7a932de4696dd95ae21bc SHA-1: 3292a069e0585455d379fa00000b49a1f9966b55 SHA-256: 3db3aa2388c93253d7402bcddc4922c7ec94ef92040fd44c5fd9ab876ea3dcdd

208 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file was flagged as malicious by ClamAV (Pdf.Exploit.Agent-35587) and a machine learning classifier. It contains obfuscated JavaScript with eval() calls, indicating an attempt to hide malicious code execution. The script likely downloads and executes a second-stage payload, as suggested by the heuristic firings and the nature of the embedded JavaScript. The reconstructed string 'eval(\'MgaqAAEp2qtoBI=Ma+th.ceil(YTaOfrb4nLOPlS,bG0iP eval(VlUc2u=Math.min(YTaOfrb4nLOPlS,bG0iP KXJIK|=(oofSSIhwx[IxUFPnum.charCodeAt(O0TS1edEUe6NT+ shEQQFSHzsf oki12rjQNrCsTD+=String["fromCharCode"](240^KXJIK&255 oki12rjQNrCsTD' points to complex JavaScript obfuscation.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

ClamAV: Pdf.Exploit.Agent-35587 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35587
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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.
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `249975759348bf7edfb19256aa7e332e4ed0162e041d2d047661c8541d99be42`	pdf-javascript-stream	PDF /JS object 13 at offset 0x38D	5779 bytes
Detection ClamAV: Pdf.Exploit.Agent-35587 Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

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