PDF malware analysis — malicious · 277eb016b4124601

MALICIOUS

PDF

5.4 KB Created: sdtres

MD5: 75b623cb44de3493bf5958936f3a31b7 SHA-1: 88bc269388d9810044ee0baaba41740bed619453 SHA-256: 277eb016b4124601d08f40ff1d8a4b67eccf1409b01f9b45c55c0f0d28fae9bd

210 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The PDF file contains an XFA form and triggers a critical heuristic for CVE-2010-0188, indicating exploitation of a LibTIFF vulnerability in Adobe Reader. A decompressed JavaScript payload was extracted from a PDF stream, which is likely responsible for executing the malicious content. The ClamAV detection further confirms the malicious nature of the file, specifically identifying it as Pdf.Exploit.CVE_2010_0188-10.

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_off00000424.js` `07d973d5c3fcafd8c806f7214cf462e2d1a0e3a0582cc7b44dc17cb86c232549`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x424	32712 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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