PDF malware analysis — malicious · 0db7548e6bd8d3b5

MALICIOUS

PDF

31.8 KB

MD5: 76418d751bcaf8eadc1679d363635fb4 SHA-1: 5f68ac9305b091ce93fac64201d4a3acf9d4fd75 SHA-256: 0db7548e6bd8d3b5286a60e64de29938afdc543d4ad5db64116d19bf1d505409

276 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF file is malicious due to the critical detection of CVE-2010-1297, an Adobe Flash exploit. The exploit targets RichMedia (Flash) content embedded within the PDF, leading to the execution of a SWF file. This SWF file, identified as WTCHnMUgV.swf, is likely a downloader for a second-stage payload, as indicated by the embedded JavaScript which contains obfuscated code and references to potentially malicious actions.

Machine Learning

Nyx PDF Classifier malicious score 0.9919

Heuristics 8

Adobe Flash authplay SWF exploit in PDF — CVE-2010-1297 critical CVE likely CVE_2010_1297_FLASH_RICHMEDIA

PDF combines RichMedia Flash activation, a crafted SWF with ActionScript prototype/AVM-era markers or the AES-PHP/authplay variant markers, and PDF-side shellcode heap-spray staging. This is the static delivery shape associated with CVE-2010-1297 in Adobe Reader's bundled authplay.dll.
ClamAV: Pdf.Exploit.Agent-35955 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35955
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
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.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
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
`WTCHnMUgV.swf` `c2b666a3ef4c191b77b78c037656e50477b8ba3d35fd61ae843a3a1f4d41c5c1`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x1534	26774 bytes
Detection ClamAV: Pdf.Exploit.Agent-35955 Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `193160a60f4a0d15339fa364f0858d09b8b6d0cd2307030cf4b12eec63b789b5`	pdf-javascript-stream	PDF /JS object 6 at offset 0x146	3661 bytes

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