PDF malware analysis — malicious · 8cb22ad5ed7e36dd

MALICIOUS

PDF

7.9 KB Created: 2008-08-19 12:14:36 Authoring application: avast5O

MD5: d773570f2e34e7578d3c0e74a699a361 SHA-1: 12efc9251df37b60e7e5130fc01cf835772ce5df SHA-256: 8cb22ad5ed7e36dd322b5214bc983d97fdb6c5ce66e37f80c5d5cd72ccfe2f00

68 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF was flagged by an ML classifier as malicious with high confidence. Static analysis revealed embedded files, including a large object named 'embedded_file_obj0012.bin', which is likely the payload. The presence of embedded script payloads and XFA forms further indicates malicious intent within the PDF structure.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 4

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 7

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_file_obj0008.bin` `d81baa73e490e4cb879e13927cacd1dd1be37524a37eac51603e15117c578777`	pdf-embedded-file	PDF EmbeddedFile object 8 at offset 0x21C	84 bytes
`embedded_file_obj0009.bin` `24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0`	pdf-embedded-file	PDF EmbeddedFile object 9 at offset 0x2CD	228 bytes
`embedded_file_obj0010.bin` `92ffe1a100d8f6a548bf0bcdacde2366f6f6958cdf0136493a55d480d354f801`	pdf-embedded-file	PDF EmbeddedFile object 10 at offset 0x3BE	1752 bytes
`embedded_file_obj0011.bin` `c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460`	pdf-embedded-file	PDF EmbeddedFile object 11 at offset 0x720	199 bytes
`embedded_file_obj0012.bin` `548f45028f592cfe88eafd23e2fd7d21c0b77f7246cb3acfb2894bb26a3e3834`	pdf-embedded-file	PDF EmbeddedFile object 12 at offset 0x813	123564 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`embedded_file_obj0013.bin` `e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876`	pdf-embedded-file	PDF EmbeddedFile object 13 at offset 0x1B21	77 bytes
`embedded_file_obj0014.bin` `92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a`	pdf-embedded-file	PDF EmbeddedFile object 14 at offset 0x1BC9	56 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.