PDF malware analysis — malicious · e9fb1015da1fdcd1

MALICIOUS

PDF

1.64 MB

MD5: 6e9ff1b3ff512f68679ce5461a1e8beb SHA-1: 1d5c0358f15826250857786438a32eab48fec5bf SHA-256: e9fb1015da1fdcd1b39b0b38068c9e583b0039722d69e1d8505af04656221b6b

78 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The critical heuristic firing indicates exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader related to the LibTIFF library within XFA forms. This suggests the PDF is designed to execute code upon opening in a vulnerable reader. The embedded file further supports the malicious intent, likely containing a secondary stage payload. The document body content is heavily obfuscated and unreadable, providing no further clues to the specific lure.

Heuristics 4

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.
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` `4039e9c998334ff031d82f5ca110045c516b3c5ea8785535b9ad33d41166a47b`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x4F	13560 bytes

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