PDF malware analysis — malicious · 7a5720585b439b01

MALICIOUS

PDF

4.0 KB

MD5: 5f2b710521a2c001afb4d56bc511bcef SHA-1: 7fd60866b7ad2004202b05f095d6c1233a134341 SHA-256: 7a5720585b439b0106d8327c96a3c35d9f5d5ce50fe3a5ad769ea7b16c744ab2

110 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains an XFA form with embedded JavaScript, indicated by multiple high-severity heuristics. The embedded JavaScript, extracted as 'stream_000_off0000027f.js', is likely responsible for executing malicious code. The presence of XFA and eval() calls strongly suggests an exploit attempting to bypass PDF security measures to download and execute further stages.

Heuristics 5

XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
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
`stream_000_off0000027f.js` `532030abf332588e49bcc71b0a6906c3a6102950cb9149e04c8d9b8124eb44e8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x27F	10121 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 5 long base64-like blob(s).

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