PDF malware analysis — malicious · cc39d768413f1d66

MALICIOUS

PDF

2.9 KB Created: 2005-09-29 09:27:34 UTC Authoring application: Adobe PDF Library 8.0

MD5: 72a3dd470b334a3712c0aee95d86f10a SHA-1: 8e0da1c888f33d841d160bbeadd833a7d7191df7 SHA-256: cc39d768413f1d663b20ecff8d0a8ac8f0512b467ec75e59feb8ecde4daf2efa

162 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains embedded JavaScript and an XFA form, which are leveraged to exploit CVE-2010-0188, a vulnerability in Adobe Reader's handling of LibTIFF images within XFA forms. This exploit likely leads to the execution of a second-stage payload, as indicated by the detection of an embedded file and a critical ClamAV signature for Pdf.Exploit.Agent-36078. The embedded file 'embedded_file_obj0004.bin' is a strong indicator of a dropper or downloader functionality.

Heuristics 8

Adobe Reader LibTIFF XFA image exploit — CVE-2010-0188 critical CVE likely CVE_2010_0188

PDF contains XFA image data with an inline crafted TIFF payload and shellcode/delivery markers. This is the data-bound variant of the CVE-2010-0188 Adobe Reader LibTIFF/XFA exploit shape.
ClamAV: Pdf.Exploit.Agent-36078 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36078
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
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
AcroForm button with action trigger low PDF_ACROFORM_BUTTON

PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
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
`embedded_file_obj0004.bin` `f3ed34d99e8f3eae4a006638902ef86015a1b625b57990c8f66b83d3afc8c500`	pdf-embedded-file	PDF EmbeddedFile object 4 at offset 0x1C6	12827 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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