PDF / .TXT malware analysis — malicious · 488a2257dd323a1b

MALICIOUS

PDF / .TXT

3.4 KB

MD5: 8c114fa00c300f0e062538a65f1353a0 SHA-1: 7fbe2e52568948e9d0acbfa88fd9f58ed7f52f7c SHA-256: 488a2257dd323a1b37369a83c52664e3617e7035a3316f7d42d16d4af4e61969

78 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.002 Spearphishing Attachment

The PDF file contains XFA form elements and utilizes ASCII85Decode filters, which are indicators of potential exploit delivery. Specifically, the critical heuristic firing for CVE-2010-0188 confirms the presence of an exploit targeting Adobe Reader's LibTIFF component via an inline XFA image payload. This indicates the file is designed to leverage this vulnerability to execute arbitrary code.

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` `1a688e5d1075605f635420963cb2e275c6c92b37da3a05a44e1e5dce4e3ab9f0`	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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