Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e8da99560bf25ef…

MALICIOUS

PDF

13.5 KB Created: e1svrt Authoring application: Adsfgddfobe (via sfgasdfgsd) First seen: 2026-05-10
MD5: 73d8ba018cee87a90463d885bcc65303 SHA-1: 5f50ab5c8f8a905e3cd68bcafaf44b5daf96451e SHA-256: 3e8da99560bf25efcb35bfedd9cdcc2deaf39a8ed9072a4bb518c56406f0b8f3
188 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains embedded JavaScript streams, indicated by PDF_JAVASCRIPT and PDF_JS heuristics. The presence of PDF_EVAL and PDF_UNESCAPE firings suggests that the JavaScript is obfuscated and likely attempts to execute arbitrary code. The extracted JavaScript files, javascript_obj0015_000.js and javascript_obj0017_001.js, are suspicious artifacts. The obfuscated nature of the script prevents a definitive analysis of its exact payload, but the techniques used strongly indicate a downloader or dropper functionality.

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 0x32B3 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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