PDF malware analysis — malicious · 530b1e231f617bc9

MALICIOUS

PDF

16.5 KB

MD5: 92375e72158fc0c0581647481973ad71 SHA-1: 850012efe24672d91e481684940dca14c131ac27 SHA-256: 530b1e231f617bc94c70874fd66b431db86ae8f5d5cfaf8ba2f2b0888809b357

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded scripts and an embedded file, indicated by the PDF_EMBEDDED and PDF_XFA_SCRIPT heuristics. The presence of an unescape() call (PDF_UNESCAPE) suggests obfuscation or exploitation attempts. While the document body is minimal, the embedded script payload and XFA form point towards an attack pattern designed to leverage PDF vulnerabilities. The embedded file 'embedded_file_obj0008.bin' is a likely component of the malicious payload.

Heuristics 7

XFA form contains risky executable script high CVE related PDF_XFA_SCRIPT

PDF embeds an XFA form whose script block contains exploit, submission/launch, or shell-execution primitives. Ordinary LiveCycle print/update scripts are left as generic XFA/JS signals unless stronger behavior is present.
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://ns.adobe.com/xdp/
- http://www.xfa.org/schema/xfa-template/2.5/
- http://www.xfa.org/schema/xfa-data/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `c99a92c9cac750ceafcc606b5bd29d085b42915b2f09ee38e05d24d749e20305`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	16199 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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