PDF malware analysis — malicious · 90145dd6d7fb3d5b

MALICIOUS

PDF

6.2 KB

MD5: c2a6f9140eaf7a21c6ea02dcbc903e35 SHA-1: 4e816aca93a9479a92396f7280775c5174a66f87 SHA-256: 90145dd6d7fb3d5b5347cffde266b6ba356aa228e2579cfd26ac984ca573b4ec

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2008-2992, indicating exploitation of a known vulnerability. The ClamAV detection 'Pdf.Dropper.Agent-7282438-0' further confirms its malicious nature. The embedded JavaScript, likely obfuscated, is designed to execute arbitrary code, which is a common technique for downloading and running further malicious payloads.

Heuristics 6

util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (matched in decompressed stream)
ClamAV: Pdf.Dropper.Agent-7282438-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7282438-0
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` `ffec288cc233666583bc4ef241a03d34bdb69328e80b6d223103130023afb2c7`	pdf-javascript-stream	PDF /JS object 6 at offset 0x183	5318 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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