PDF malware analysis — malicious · 42f8cda98b73a0d3

MALICIOUS

PDF

4.8 KB

MD5: 30569c16a8c675370f20f339d9df157c SHA-1: 672fdc2b9c98ae0e95289d50b015491289fd7cf7 SHA-256: 42f8cda98b73a0d3fd3f2a4625844beffd1c7ca0ae0d5155da77488787039f43

168 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1027 Obfuscated Files or Information

The PDF file contains an embedded object that triggers the CVE-2010-0188 exploit, targeting Adobe Reader. This exploit is known to download and execute a second-stage payload. The presence of ASCIIHexDecode and ASCII85Decode filters further indicates obfuscation techniques used to hide the malicious content. The ClamAV detection confirms the malicious nature of the file.

Heuristics 7

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: Pdf.Exploit.Pidief-3 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Pidief-3
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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_obj0001.bin` `cf02ae37d363c91f4b7f05f69d59fa19392b7c91b5c28a8ca525e56365a14d27`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x7A	13441 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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