PDF malware analysis — malicious · b9c8aaa794a2eb12

MALICIOUS

PDF

92.7 KB

MD5: 9749baf3c5c016078ee94c76c7f6f97d SHA-1: 2f5c9cd8d9d4290946eba7d8f400953ddfabd143 SHA-256: b9c8aaa794a2eb12e2fcb2464ddd079788cb04ed8658fefec3853df4d27d0042

160 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1204.002 Malicious Link: Clickjacking

The PDF file contains an embedded exploit targeting CVE-2010-0188 in Adobe Reader, specifically within an XFA form's image component. This indicates the file is designed to be opened by a vulnerable PDF reader to execute arbitrary code. The ClamAV detection further confirms its malicious nature. No scripts were extracted, and the document body was minimal, so the primary indicators are the exploit and embedded 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.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
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` `743c66bd1920cd346406e464797b7deda117370b793eabd9476e99d08bf0869c`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x5B	13414 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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