PDF malware analysis — malicious · abf10c181f07f0d9

MALICIOUS

PDF

68.7 KB

MD5: 0029c640fdd9d015792f04a1e78c8fa5 SHA-1: 582aae0c5d44d3c8df43f93d2c50f7ef53351381 SHA-256: abf10c181f07f0d98996598ba1aef3beffe1263e12fb570b801167f652539c14

148 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF document contains an embedded file and utilizes XFA forms with executable scripts, indicating a malicious intent to deliver a payload. The presence of PDF_UNESCAPE and PDF_XFA_SCRIPT heuristics, along with the ML classifier's high confidence, strongly suggests exploitation of a PDF vulnerability. The embedded file 'embedded_file_obj0008.bin' is likely the secondary stage of the attack.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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` `30da8f77ba3afe208b0a3514b6122daebc034fb3023bc4a22dab8f05103dfb4f`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0xC6	69614 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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