PDF / .PHP malware analysis — malicious · 1d4ade5d731ac12e

MALICIOUS

PDF / .PHP

37.0 KB Created: 2010-04-13 03:19:25 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))

MD5: 1f150f6864627d4c228b0dd3a3c5bb68 SHA-1: de685132f702c5475bb054c00bdd210779eb0bd6 SHA-256: 1d4ade5d731ac12e7f647c36cfe06293e594c012222da102046ab2179b9fa5da

84 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature Pdf.Exploit.Agent-22448. Static analysis revealed embedded JavaScript within a PDF structure, triggered by an optional content group. This suggests the file attempts to exploit a PDF vulnerability to execute arbitrary code. The exact nature of the JavaScript payload could not be determined due to potential obfuscation, but its presence is a strong indicator of malicious intent.

Heuristics 4

ClamAV: Pdf.Exploit.Agent-22448 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-22448
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.
Optional Content Group with action trigger low PDF_OPTIONAL_CONTENT

Optional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0010_000.js` `eb8215813e2a8f819695697e08f26e0b020fd5d632942fe38d0bd340823772e4`	pdf-javascript-stream	PDF /JS object 10 at offset 0x89D3	1344 bytes

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