PDF malware analysis — malicious · 976f4b155566478a

MALICIOUS

PDF

4.7 KB

MD5: bb01947999c0c70216e7f64eca2bb69b SHA-1: 1abb4f0918fb64c421ccd0f4e80642deae2c71e7 SHA-256: 976f4b155566478ab498387228de083a1340e1cdfbe0fb5cf47ab72fc16a71f4

226 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1027 Obfuscated Files or Information

The PDF file contains an embedded TIFF image that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms. This exploit is designed to achieve arbitrary code execution. The ClamAV detection 'Pdf.Exploit.Pidief-3' further confirms the malicious nature of the file, indicating it's a known PDF exploit.

Heuristics 8

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
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.
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` `616b8764400e1fe08943e192ec49b9c35c990b182f2e3d6c32769f0186ada2a3`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x7A	13441 bytes
Detection ClamAV: Pdf.Exploit.Pidief-3 Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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