PDF malware analysis — malicious · 4d38b89eb2ab6985

MALICIOUS

PDF

5.6 KB

MD5: 88aa6e913be5b81513b5c5c51bf1d3cb SHA-1: 4476cbbbd7eb308920431bde2e66c78975a14f86 SHA-256: 4d38b89eb2ab698595450cb19281d341869f7f20f2b0e67a2b60d24baf67226d

158 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment T1027 Obfuscated Files or Information

The critical ClamAV detection indicates exploitation of CVE-2010-0188, a known vulnerability in Adobe Reader and Acrobat. The PDF contains an embedded script payload, which is likely responsible for delivering the exploit. The embedded artifact, 'embedded_file_obj0006.bin', is also flagged by ClamAV, suggesting it is the malicious payload.

Heuristics 6

ClamAV: Pdf.Exploit.CVE_2010_0188-10 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2010_0188-10
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
Embedded script payload in PDF stream medium PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain an HTML/XFA <script> tag without accompanying Windows shell-execution primitives — common in accessible XFA forms but worth surfacing for analyst review.
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
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_obj0006.bin` `39eb23959d3142d706670d810e41a923677d6dace30fdd0a216acf5fd7254724`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0x410	33748 bytes
Detection ClamAV: Pdf.Exploit.CVE_2010_0188-10 Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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