PDF malware analysis — malicious · 1bd2e563a6948c0a

MALICIOUS

PDF

29.7 KB

MD5: 9ffb6dca824e2e0e2fca3edf586d539b SHA-1: 24f0dbc0859a50034d00c3fb558ac696ae59f635 SHA-256: 1bd2e563a6948c0aaf10b4ac7ab53322c850bc1f3948300476170129a9177c6a

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript and a Flash object (hJzrcNRhacMbB.swf), indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_RICHMEDIA. The unescape() call suggests obfuscation within the JavaScript. The embedded Flash file and JavaScript stream are the primary indicators of malicious intent, likely serving as a dropper for further stages. The presence of these embedded objects strongly suggests an attempt to exploit vulnerabilities within the PDF reader to execute arbitrary code.

Heuristics 6

RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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
`hJzrcNRhacMbB.swf` `767382813fc770c9716554c3266b22eee1636037ca964af05acf6ff66db4a27d`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0xBEA	26993 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.98, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `4107b63f870e87fdaa803db3fb73d0dfb4470b84b2be39c76493eb920d20133c`	pdf-javascript-stream	PDF /JS object 6 at offset 0xF9	1944 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.