PDF malware analysis — malicious · 21c98fee7a1cc2d4

MALICIOUS

PDF

121.1 KB

MD5: 222b8c757529c65800e434803ce974d7 SHA-1: a9dd9b38403d8acea279da8af0d2c97a18a5249e SHA-256: 21c98fee7a1cc2d4cc0dc02ee4f4fb33aceb1dd5be5d7116416d004bb0360d7b

140 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.001 PowerShell

The sample is a PDF file that triggers the CVE-2010-0188 exploit, targeting Adobe Reader. This exploit is known to facilitate arbitrary code execution. An embedded file was also detected, which is commonly used to deliver secondary payloads. The combination of the exploit and embedded artifact strongly suggests a malicious intent to compromise the user's system.

Heuristics 6

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.
ClamAV: Pdf.Exploit.Agent-20478 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-20478
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
XFA form low PDF_XFA

PDF uses XML Forms Architecture — can contain script logic
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PSSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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
`embedded_file_obj0001.bin` `5cef019c1335cf413c3b764f8bf6d3d305a45c6872e36866b22ef0163fce9c50`	pdf-embedded-file	PDF EmbeddedFile object 1 at offset 0x51	13430 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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