PDF malware analysis — malicious · da42acbe8e378f03

MALICIOUS

PDF

5.5 KB Created: sdtres

MD5: cf55fbf57d8c494f995e0dc4e42bca2a SHA-1: 81c989f23cffd0def1a7f253086aaa625896ed21 SHA-256: da42acbe8e378f03feeb418ee8ac0ca384c0b5ba6796571c4d810a5825da1807

210 Risk Score

Malware Insights

MITRE ATT&CK

T1204 User Execution

The PDF file contains an XFA form that exploits CVE-2010-0188, a known vulnerability in Adobe Reader. The exploit targets a decompressed JavaScript payload embedded within the PDF stream. This payload is designed to be executed when the document is opened, likely leading to further malicious activity.

Heuristics 6

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.
ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
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.
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.
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
`stream_001_off0000044d.js` `ab2a8e9d36d14debeb345f83c3760df6ac97b7ce4828ef23b4fd27c68c2cdbcf`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x44D	33236 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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