PDF malware analysis — malicious · 2a6554dd1fac6e63

MALICIOUS

PDF

30.8 KB

MD5: b0a7dcb4c9b22278fafb2bd44d4b8e9a SHA-1: 5bf1ec3174beb354c2bf4ad1709eaf5d41f757a9 SHA-256: 2a6554dd1fac6e6337cf9b25e8d77266ee52ed20886e9f4759d0e3bece624693

226 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript and a RichMedia (Flash) object, indicated by the PDF_JAVASCRIPT, PDF_JS, and PDF_RICHMEDIA heuristics. The critical CLAMAV_DETECTION and EXTRACTED_FILE_CLAMAV heuristics confirm its malicious nature, identifying it as Pdf.Exploit.Agent-35955. The embedded JavaScript, likely responsible for executing the Flash object, is the primary mechanism for delivering the malicious payload. The extracted artifacts are GiDCYnTodjTuo.swf and javascript_obj0006_000.js.

Heuristics 8

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
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (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.
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
`GiDCYnTodjTuo.swf` `c2b666a3ef4c191b77b78c037656e50477b8ba3d35fd61ae843a3a1f4d41c5c1`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x111E	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` `d8ff4de2be6cb21893f1e6ebcc358002e9c1571d24fefa1b5aac267f6c4f5e6d`	pdf-javascript-stream	PDF /JS object 6 at offset 0x13E	2876 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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