PDF malware analysis — malicious · c51ccb22af6c2588

MALICIOUS

PDF

13.2 KB

MD5: fa57467bd6b76509886c15d69965b5c3 SHA-1: 42e881f6e7ad332b4c889fac9b7adbefb90ec616 SHA-256: c51ccb22af6c2588838646be8d0aa314c1e0deac1af9d8c37547533b27129680

150 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The file was flagged by a machine learning classifier and critically by ClamAV as Win.Exploit.Jailbreak-1, indicating it is a malicious PDF exploiting a known vulnerability. The embedded artifact also triggered the same ClamAV detection. The document body content is heavily garbled and does not provide further context on the lure.

Machine Learning

Nyx PDF Classifier malicious score 0.8633

Heuristics 2

ClamAV: Win.Exploit.Jailbreak-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Exploit.Jailbreak-1
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_cff_off00000458.bin` `10f1ecbaac9f2a9b8757e831eac2075ccc962effe22f4b8190a2f5df9ee2b9bd`	pdf-font-stream	PDF embedded font (cff) at offset 0x458	40133 bytes
Detection ClamAV: Win.Exploit.Jailbreak-1 Obfuscation or payload: unlikely

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