PDF malware analysis — malicious · 1e22f644fec80a0f

MALICIOUS

PDF

4.0 KB

MD5: 24f3124f73734d39c1c3dece378aa9d1 SHA-1: d21f40ca3a9cd5b3f977a2d3ebc52c2846fbe108 SHA-256: 1e22f644fec80a0f7470fe6abd1a425c8dcbc5985cf2019f89fdd5d599f5db46

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of PDF_EVAL and PDF_FROMCHARCODE suggests that the JavaScript is obfuscated and likely uses eval() to execute arbitrary code. The extracted JavaScript files, 'acroform_b64_00.js' and 'javascript_obj0013_001.js', are strong indicators of malicious intent. The primary function of the script appears to be downloading and executing a second-stage payload, although the exact URL or execution method could not be fully reconstructed due to obfuscation.

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
JavaScript action low 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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `99eb66e8e988ff49cb85e538f528d8a1b37356ce9ec27644750550ff7720738d`	pdf-javascript-stream	PDF /JS object 13 at offset 0x368	6333 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`acroform_b64_00.js` `fcf2f48527ee721e98729e53bc8af8fb05b3c8d270e34ec4e4fa4bf0ef467053`	deobfuscated-js	PDF AcroForm base64 (decompressed) at offset 0x99D	3595 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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