PDF malware analysis — malicious · e71cf9414dff7ca8

MALICIOUS

PDF

13.5 KB

MD5: 5d3eedf89a94038d84d9437e4fc3f852 SHA-1: 991f47d6b633da73d5aa8b2a9c5338d7bca4768f SHA-256: e71cf9414dff7ca89c39c65f13e98147460cce101d056e7c25c53abc1b890e28

166 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell T1204.001 Malicious Link

The sample is a PDF document that exploits CVE-2010-0188, a known vulnerability in Adobe Reader related to XFA forms and TIFF image parsing. The ClamAV detection 'Pdf.Exploit.Dropped-90' further confirms its malicious nature. The embedded file and XFA structure indicate an attempt to deliver a secondary payload. The document body contains obfuscated strings that likely form part of the exploit or payload delivery mechanism.

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.Dropped-90 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-90
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` `e46d3e34a0339331f08a45e72deb408cd04c0ebd2ecb2ab491bfe661846ad2a3`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0xA6	13357 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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