PDF / .COM malware analysis — malicious · 59c7326edc0d99f9

MALICIOUS

PDF / .COM

4.4 KB

MD5: 746ae885df637256b1b147c76c93c411 SHA-1: 9a8b42ecc0cd0290df64d247656836b42bf0f8ef SHA-256: 59c7326edc0d99f9b639b6ba75506bdeadb97f34c467d91f22bfd538616fbc14

98 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1027 Obfuscated Files or Information

The PDF file contains indicators of exploitation for CVE-2010-0188, a vulnerability in Adobe Reader related to LibTIFF XFA image handling. The critical heuristic firing confirms the presence of an exploit targeting this CVE, embedded within an XFA form. Additional heuristics indicate the use of ASCIIHexDecode and ASCII85Decode filters, suggesting obfuscation techniques were employed to hide the malicious payload within the PDF structure. The extracted artifact 'stream_000_off000001f9.bin' is likely the decompressed exploit payload.

Heuristics 5

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.
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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_off000001f9.bin` `c6dea092e27bcb0819d37de9fe8b34da457560c764257a0c120ff5f2fb0b500d`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1F9	13469 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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