PDF malware analysis — malicious · bcab6099645e6889

MALICIOUS

PDF

2.4 KB

MD5: 83e707538a7a49b9847e1cf0d11d64ba SHA-1: 0e30ea9a0346bd21d222ec5b4ee961d3f919d329 SHA-256: bcab6099645e688965b370181ce80a38a80f680b45da5e7838e21a1f2dbfc434

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious JavaScript

The PDF document contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. A critical finding is the CVE-2007-5659 exploit targeting the Collab.collectEmailInfo function, which is known to be used for arbitrary code execution. The embedded JavaScript, specifically the unescape() call, further suggests an attempt to obfuscate malicious code. The primary intent appears to be exploiting this vulnerability to run arbitrary code, likely to download and execute a secondary payload.

Heuristics 5

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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.
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_obj0007_000.js` `e4b3f2ac87d6a75faabf8cc6ce451dfa3dac832433b8628a95519d47f7b91115`	pdf-javascript-stream	PDF /JS object 7 at offset 0x2A5	1425 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `06e9ef3d84f4a2d674c4ee6a21d97d887c332fc4633ed8a13b06ef4618542fe2`	pdf-javascript-stream	PDF /JS object 7 at offset 0x2A5	51 bytes

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