PDF / .TXT malware analysis — malicious · aefa195f90422ef5

MALICIOUS

PDF / .TXT

3.4 KB

MD5: 3aba75cf41b66281a11bf5117603bf6b SHA-1: 36b1ef22a1461b6f5b6d1aa22049a1718a185efd SHA-256: aefa195f90422ef5d46ffa5b1ced5eeab350eca9caa7e4359358a0e115cd4ddf

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1566.001 Phishing: Spearphishing Attachment

The PDF file contains an XFA form and utilizes ASCII85Decode filters, which are indicators of malicious intent. A critical heuristic identified the CVE-2010-0188 exploit targeting Adobe Reader, with a malicious payload embedded within an XFA image. This suggests the document is designed to exploit this specific vulnerability upon opening in a vulnerable PDF 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` `cdf2cabe29141aacd4f40506275015c8e1a966ba964209af4bb408ce1658c9ef`	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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