PDF malware analysis — malicious · a5d50ca82e7ee7eb

MALICIOUS

PDF

51.0 KB Created: 036º031[T½èwÁál027Cóe#6ÀB÷e First seen: 2026-05-10

MD5: 896d6b79ded3cbacc4ea1b646f2640be SHA-1: 54d9d161f7295b7653774c400319e9c527176d6d SHA-256: a5d50ca82e7ee7ebe1ba18ce377a82ba5f20f640f7711bbc7115e30c0238e667

152 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file contains embedded JavaScript, which is flagged as suspicious. The JavaScript is likely used to obfuscate the malicious content and potentially download further payloads from the embedded URL http://www.cadkas.com. The presence of JavaScript within an encrypted PDF indicates an attempt to hide malicious activity from static analysis.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 7

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.
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.
Encrypted PDF carries /JavaScript — payload hidden from static analysis high PDF_ENCRYPTED_WITH_JS

PDF declares /Encrypt and also references an executable trigger (/JavaScript). Document encryption hides the JavaScript body and stream contents from static scanners — combined with auto-execution indicators this is a known evasion pattern used to deliver weaponised JavaScript that the analyst cannot inspect without the decryption key.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://www.cadkas.com In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0019_000.js`	pdf-javascript-stream	PDF /JS object 19 at offset 0x693D	42 bytes
SHA-256: `76e21958c55cd739dc2b69ddc0b41e5d5cf8ff3ddaccfc6393f1aec9622bde05`
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 eval("eval(\""+getField("e").value+"\")");
`javascript_obj0030_000.js`	pdf-javascript-stream	PDF /JS object 30 at offset 0x18F1	42 bytes
SHA-256: `fb426bd9efde1d439d296a08b6f68bba4bfbeead17cde76d4aca2a2ba9ece5be`
Preview script First 1,000 lines of the extracted script �xS@� (z�p��ѩ� $�� hK�� ~�fYU� ~��

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