MALICIOUS
118
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1204.002 Malicious File
The PDF file contains a high-severity heuristic firing for XFA forms with risky executable scripts. An embedded JavaScript file was extracted, which likely serves as the primary payload. The PDF's structure and the presence of an embedded script indicate an attempt to exploit vulnerabilities or trick the user into executing malicious code. The script itself is heavily obfuscated, making its exact function difficult to determine, but its presence within an XFA form strongly suggests it's designed to download and execute a second-stage payload.
Heuristics 6
-
XFA form contains risky executable script high PDF_XFA_SCRIPTPDF 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.
-
unescape() call high PDF_UNESCAPEunescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
-
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOADPDF 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.
-
Embedded file low PDF_EMBEDDEDPDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
-
XFA form low PDF_XFAPDF uses XML Forms Architecture — can contain script logic
-
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne 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_001_off00000334.jsf6f545d19337b20901b40cebe3c7c5a09ba07bb0bac1481ddbacd0b90ff3cbd7 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x334 | 56130 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).
|
|||
Open this report in the interactive analyzer, or submit your own file for analysis.