PDF malware analysis — malicious · a941fa6059ada022

MALICIOUS

PDF

5.5 KB

MD5: a2670c65e27c242703198473d436f4c5 SHA-1: ef09ce6db178889e2ba0d3eb50b367ffd58bf50a SHA-256: a941fa6059ada022046e264efb347363d02b832ff26863b0a0998f5d541119d9

188 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1566.001 Spearphishing Attachment T1059.001 PowerShell

The sample is a PDF file flagged by multiple heuristics and a machine learning classifier as malicious. ClamAV specifically identifies it as Pdf.Exploit.CVE_2010_0188-10, indicating exploitation of a known vulnerability. An embedded file, also detected by ClamAV, suggests the PDF acts as a dropper for a secondary malicious artifact.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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` `6245ab5abd1bfc5566b8d64e44aa1ab529db532a1ed1e72e2baad5937dd3614a`	pdf-embedded-file	PDF EmbeddedFile object 6 at offset 0x411	33664 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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