PDF malware analysis — malicious · d7754bcbf0e5454f

MALICIOUS

PDF

602 B

MD5: 710835cfec479c2669392e8baaf64f3a SHA-1: a508b5dd946358fb8f1e2b878b09e34ebb85d0aa SHA-256: d7754bcbf0e5454fc31327dcae401a6e937638833cc2acdf06233d3f830c0bab

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 Command and Scripting Interpreter: PowerShell T1059.003 Command and Scripting Interpreter: Windows Command Shell T1204.002 Malicious File Execution: Malicious JavaScript

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The JavaScript stream utilizes eval() and unescape() functions, suggesting obfuscation and dynamic code execution. The extracted artifact 'javascript_obj0009_000.js' is likely the payload. This pattern is consistent with a malicious PDF designed to download and execute further stages of malware.

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
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_obj0009_000.js` `4f363a85d56f1a4ac73841245ba43e0997267f06361bab678b91dfdeaa7f3b50`	pdf-javascript-stream	PDF /JS object 9 at offset 0x1B3	49 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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