PDF malware analysis — malicious · aefef98dc05b827b

MALICIOUS

PDF

102.3 KB

MD5: ee7451d320b30a7f67a0f3d318bb92fb SHA-1: fe17292b0a565bf7a8c5a27206fa43ba582857cb SHA-256: aefef98dc05b827b717304442ba9c6268f6888a3474a4a0cff73bae8972ce411

160 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

This PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader. The heuristic 'PDF_EMBEDDED_SCRIPT_PAYLOAD' indicates the presence of a script within an embedded stream, which is a common technique for delivering secondary payloads. The ClamAV detection further supports its malicious nature. The document body is heavily obfuscated and does not provide clear textual lures.

Heuristics 7

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: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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.
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
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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` `24ee324d971a2390f42ec88e69f7721db978d1669794a4f3fbd9481085560810`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x104	25105 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 long base64-like blob(s).

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