PDF malware analysis — malicious · b24216cfcd662cfd

MALICIOUS

PDF

127.4 KB

MD5: ffe5110a888c24a392ccbe1209003ae5 SHA-1: b21c4fdfe2fee74a01caa37c8cebce0b7c1eb9c0 SHA-256: b24216cfcd662cfd3148d1dfa88715944f854867da9ef2b30c89425b2fee2d34

160 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains obfuscated JavaScript, indicated by the `PDF_JAVASCRIPT`, `PDF_JS`, `PDF_EVAL`, and `PDF_UNESCAPE` heuristics. ClamAV also flagged it as `Heuristics.PDF.ObfuscatedNameObject`. The embedded JavaScript file, `javascript_obj0116_000.js`, is likely responsible for executing malicious code, potentially downloading a second-stage payload. The exact behavior of the script is difficult to ascertain due to obfuscation, leading to a slightly reduced confidence.

Heuristics 7

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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.
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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_obj0116_000.js` `8a43996bc20dcfe8ec8126a37162098e0b1384166d1eebd1bb963763798d7c70`	pdf-javascript-stream	PDF /JS object 116 at offset 0x4BB	41052 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 209 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.