PDF malware analysis — malicious · 4d8f5b9d26427d22

MALICIOUS

PDF

2.6 KB

MD5: ee7f9ae8ef5b08d9d3be585841ebf7ee SHA-1: 6602e5bdcfc456b36dec4a2e0c3b9e81e37cffa6 SHA-256: 4d8f5b9d26427d2227635a6113f51df54e8b65abc9052f01ebc99cfd34037f2c

138 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The PDF file contains an embedded artifact that triggers the CVE-2010-0188 exploit, targeting Adobe Reader. This exploit is known to facilitate arbitrary code execution. The embedded artifact was further identified by ClamAV as Win.Exploit.CVE_2010_0188-7, confirming the exploit's presence and malicious nature. The deobfuscated JavaScript further suggests an attempt to download and execute a second-stage payload.

Heuristics 5

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 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 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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0001.bin` `88a823be5f8d7e9192c9dd9e0ab994278a6fef51203ab85637bacd0c213a19bc`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x51	13430 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`acroform_b64_00.js` `f5cefb742a5d0c0fbfff01c03a7cb9f020164ee15c22934c6a943dfac8bd715a`	deobfuscated-js	PDF AcroForm base64 (decompressed) at offset 0x586	8642 bytes
Detection ClamAV: Win.Exploit.CVE_2010_0188-7 Obfuscation or payload: unlikely

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