PDF malware analysis — malicious · 32bd7e0d3ea14a45

MALICIOUS

PDF

102.4 KB

MD5: 523c9b1a86e31b522e093ae7888b28ea SHA-1: b6ac51751177a8698cb4355b08c412f42144d41f SHA-256: 32bd7e0d3ea14a45917be9a10010a2700e12fff575ae2543e505815931094dbb

138 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF sample exhibits multiple high and medium severity heuristic firings related to embedded content and script execution, including PDF_UNESCAPE and PDF_XFA_SCRIPT. The presence of an embedded file object, 'embedded_file_obj0008.bin', suggests a potential dropper or downloader functionality. The PDF structure and embedded script indicators point towards an attempt to exploit vulnerabilities and execute malicious code, likely to deliver a secondary 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 (matched inside decoded stream)
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.
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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` `70d05815df8ee5fa5dc1bbbeea972e4f94deea0e610641e01549c79012bbae32`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xE2	14878 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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