PDF malware analysis — malicious · e28b8b80c195373f

MALICIOUS

PDF

28.4 KB Created: 2010-03-13 19:18:40 Authoring application: nqNrxSqxvA (via rxl0N3sJmH)

MD5: bc83a223545ea95d2613516dcc39a4a7 SHA-1: 7092f1094b88f6ee509b8d0f8598c5b30ceb8200 SHA-256: e28b8b80c195373f23af2934b9e25ddf0e8ba82fd6e0c9933efaaa6d681bbb72

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The `eval()` call within the JavaScript stream is particularly suspicious and suggests code execution. The extracted artifact `javascript_obj0007_000.js` likely contains the obfuscated malicious script. The primary function of this script appears to be downloading and executing a second-stage payload, a common technique for malware delivery.

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.
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.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `05dc7ba80da33e4569ba302f2e597072bd19929699b2fd4dfefee283ac9e1e64`	pdf-javascript-stream	PDF /JS object 7 at offset 0x23E	27874 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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