PDF malware analysis — malicious · 9de0a5e58c26c34d

MALICIOUS

PDF

102.3 KB

MD5: dd9d025ad58a7468087ff17b889ce786 SHA-1: 43d050cf24416b93278d2059182cb124e4333dc5 SHA-256: 9de0a5e58c26c34db30a91e21ec33676da7cc60b7c4bb5d051c8f9d4b0f51d91

160 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF document that triggers the CVE-2010-0188 vulnerability in Adobe Reader, allowing for arbitrary code execution. This is further supported by the 'PDF_EMBEDDED_SCRIPT_PAYLOAD' heuristic, indicating the presence of an embedded script designed to deliver a malicious payload. The extracted embedded file 'embedded_file_obj0001.bin' is likely the secondary stage of the attack.

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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