PDF malware analysis — malicious · 83958e648741a2cf

MALICIOUS

PDF

3.4 KB

MD5: 6ab49c40f91905ebd9b6c92974c0b07f SHA-1: 1d1d49fb97568329614cf5f24a8b1e5091c4544f SHA-256: 83958e648741a2cfbfb20e23a85e0f353e29459e8915899493b5365d88dc4389

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution

The PDF file contains an XFA form and utilizes ASCII85Decode filters, which are indicators of exploit activity. Specifically, the critical heuristic firing for CVE-2010-0188 confirms the presence of an Adobe Reader LibTIFF XFA image exploit. This exploit is embedded within a decompressed stream, suggesting it is designed to be executed upon opening the PDF in a vulnerable reader.

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` `583fb011e0834d232efe8f617a90ca028499b4f1ede30fffdd7642e002479e27`	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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