PDF malware analysis — malicious · ef11c4c880c4c8a7

MALICIOUS

PDF

1.14 MB

MD5: da0c9bad1093a588b0043138fe116092 SHA-1: cd8f8c2954b6cf2078790a5e39bf338c2faa7319 SHA-256: ef11c4c880c4c8a7d73fae772e43c427ea3346fbcb99c1bf5356638ffb8a1e36

138 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The sample is a PDF file that exploits the CVE-2010-0188 vulnerability in Adobe Reader. This vulnerability allows for arbitrary code execution when a user opens a specially crafted PDF. The embedded XFA form and the detected exploit indicate a high likelihood of malicious intent, likely to download and execute a secondary payload.

Heuristics 5

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: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0001.bin` `f250dac41c2ad36fa3ff18dd4451c5fcaab265c5b2cf5bc5356a1054bf5f0b1b`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x51	13711 bytes

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