PDF malware analysis — malicious · 1d84c0a3e9ec3d1a

MALICIOUS

PDF

6.7 KB

MD5: 8076c92e8031aa48a0649cdf3182deaf SHA-1: 02fda4a5e2d067df5055036285772a147250a986 SHA-256: 1d84c0a3e9ec3d1a21c3cfda6e831ea40f6f7ef15a2a1bfa151198ba5c972393

178 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript that utilizes the CVE-2009-0927 vulnerability via a `Collab.getIcon` call. This JavaScript is obfuscated and likely intended to download and execute a second-stage payload. The presence of JavaScript actions and streams, along with the specific CVE exploit, strongly indicates a malicious PDF designed for exploitation.

Heuristics 6

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (matched in decompressed stream)
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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.
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_obj0006_000.js` `f5326309da5368c4267a7e6a7f83f6f1d637d8e56597b8e5bfa7538705c7441f`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A1	5751 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).

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