PDF malware analysis — malicious · d0da83748a813cff

MALICIOUS

PDF

7.6 KB Created: 2012-04-17 19:53:38

MD5: 122b31189424bf2227619e8482b1d62b SHA-1: 48e7dad5c0fa0f8027bc7c89c45177f7acec3ea5 SHA-256: d0da83748a813cff17ada393223ee732d525ec287acb6cbc69f1f1fc3b5dcbd8

128 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution T1059 Command and Scripting Interpreter T1059.001 Command and Scripting Interpreter: PowerShell

The file is identified as malicious by multiple heuristics, including ML classification and ClamAV detection, specifically flagging it as 'Pdf.Exploit.Dropped-156969-1'. The presence of an embedded script payload and an embedded file further indicates malicious intent. The ML classifier's high confidence score suggests a well-defined malicious pattern. The document body contains obfuscated text, but the primary indicators point to a PDF exploit delivering a secondary payload.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Dropped-156969-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Dropped-156969-1
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_obj0008.bin` `ffc69d71c737c247cf5b0dd8a601c1f0b57e97e91a94172cd311ed370e2a68d5`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xBAF	7163 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 long base64-like blob(s).

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