PDF malware analysis — malicious · ec0d7ecfd13c6fd4

MALICIOUS

PDF

3.9 KB Authoring application: rxode (via va)

MD5: c9369b97e3e95b26c0427b9855da299e SHA-1: c3988448c8e229196b23743b1fd130feb925b1a2 SHA-256: ec0d7ecfd13c6fd469b4185d4e001f7bd8ac199898ca849b29517f1825564d8e

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Phishing: Spearphishing Attachment

The PDF file exploits CVE-2010-0188, a vulnerability in Adobe Reader related to XFA forms and LibTIFF image parsing. This exploit allows for the execution of arbitrary code. An embedded file was also detected, suggesting a multi-stage attack. The attack pattern is consistent with a targeted phishing attempt leveraging a known PDF vulnerability.

Heuristics 5

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

PDF contains the CVE-2010-0188 exploit template: XFA JavaScript heap-spray setup, a generated TIFF image payload, and assignment of that TIFF data to an XFA image field rawValue to trigger Adobe Reader's LibTIFF parser.
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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
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_obj0041.bin` `083e9c7ad9f1ecf5d98d3ffd3888a8ce8e33d70b4e8866f0b78da2d08624f19f`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9837 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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