PDF malware analysis — malicious · c5d8f132761d169c

MALICIOUS

PDF

3.4 KB

MD5: 4a91038ab09dbe0ddd4e3dbbc8425541 SHA-1: 0aecbb8ded59c0a517ee009d2fbd419409cc0d82 SHA-256: c5d8f132761d169c95c4c1ab81d9c413c5e4776c7588a18cd9215087f62b92e3

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains an XFA form and utilizes the ASCII85Decode filter, which are indicators of malicious intent. The critical heuristic firing confirms the presence of the CVE-2010-0188 exploit targeting Adobe Reader's LibTIFF component, embedded within an XFA image. This indicates the file is designed to exploit this vulnerability upon opening.

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` `f7da17eac584813b29bec31f564d3f9576088650ef3979472fa4beefd655635a`	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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