PDF malware analysis — malicious · c76323cdbe86fe68

MALICIOUS

PDF

3.4 KB

MD5: 71c30ab832e7db6fdfc184f9f7d90cd1 SHA-1: dc7fe8d75b6a7b0e4e8561f44d8edff0925a1a5d SHA-256: c76323cdbe86fe68bef77c3f11ca96844fb61b7fc945a42c517f90a76bfe2879

78 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The sample is a PDF file that leverages the CVE-2010-0188 vulnerability in Adobe Reader, specifically targeting XFA forms with a LibTIFF exploit. This indicates an attempt to execute arbitrary code on the user's system through a malformed PDF. The presence of an XFA form and the critical heuristic firing for this CVE strongly support this conclusion.

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.
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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
`stream_000_off000001e9.bin` `0a7181e25900c46c01c4608b2a4c557acf1f24d721e639d1f4f43bc2f4477cbd`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1E9	13469 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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