PDF malware analysis — malicious · e8828f13e1570d7b

MALICIOUS

PDF

11.6 KB Created: 2009-02-19 14:45:49 -02:00 Authoring application: Writer (via OpenOffice.org 3.0)

MD5: 0c6be25267ad2132c4435cf40e2f04d1 SHA-1: 68da163e871ab00e71bb4b38fce9e17359eba7af SHA-256: e8828f13e1570d7b95af3acd10108ff5857be33f4e9b59ed44559d32686a29d4

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The file is detected as malicious by ClamAV with the signature Pdf.Exploit.Agent-35541. Static analysis revealed embedded JavaScript with eval() calls and fromCharCode usage, indicating obfuscated code execution. The presence of a PDF launch action further suggests an attempt to exploit a vulnerability. The embedded JavaScript file, javascript_obj0027_000.js, is likely responsible for the malicious activity, potentially downloading and executing a secondary payload.

Heuristics 7

ClamAV: Pdf.Exploit.Agent-35541 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35541
Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0027_000.js` `ff37711e7eb4065677375fe20943b2bf335f47d995723c6a70064fba26bf80af`	pdf-javascript-stream	PDF /JS object 27 at offset 0x21C1	15646 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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