PDF malware analysis — malicious · 42c9c50ca290a542

MALICIOUS

PDF

3.8 KB Authoring application: rxode (via va)

MD5: 86062a82c6e9aa2e4d3950738ca06d1c SHA-1: 0087fa1d3c2144bc7c38495bab0a2dcfd0d62abe SHA-256: 42c9c50ca290a5429d35ff32f6eb8feaaf087eba47cf71d26526327fb15f1ea7

98 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The sample is a PDF document that exploits CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image processing. This exploit allows for arbitrary code execution when the PDF is opened. The PDF contains an embedded file and XFA form elements, which are leveraged by the exploit. No specific malware family could be identified, but the attack pattern is consistent with a targeted exploit delivery.

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` `7c4870a0515a79925047965451975820248c77bdbbc8b9cf0ba645bb74572924`	pdf-embedded-file	PDF EmbeddedFile object 41 at offset 0x53	9834 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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