PDF malware analysis — malicious · 92968bac8fe29f56

MALICIOUS

PDF

788 B

MD5: 049cb85c0cdef42fc2e6a0b41587596c SHA-1: 752b9b5badb0ddb55cbc37b56f57da6337f9d6c0 SHA-256: 92968bac8fe29f569a37c8623e36bdf3db39e7e810f2d69c33a0e3575a765414

120 Risk Score

Malware Insights

MITRE ATT&CK

T1059.003 Windows Command Shell T1204.002 Malicious File

The PDF file contains a launch action that executes cmd.exe. This command decodes a VBScript payload by concatenating strings and then writes it to disk as 'm.vbs'. The script is designed to download and execute a second-stage payload from the embedded URL http://02.ssdzams.co.cc/x/img.php?d=1. The obfuscated nature of the script and the use of a launch action indicate a malicious intent to deliver further malware.

Heuristics 4

Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOAD

PDF stream bytes contain script execution markers such as ActiveXObject/CreateObject, WScript.Shell, PowerShell, or shell-exec primitives. This is stronger than ordinary PDF JavaScript because it indicates a staged external script payload hidden in stream bytes.
/Launch action target: cmd high PDF_LAUNCH_COMMAND

PDF /Launch action specifies an executable target with parameters '/c echo B="m.vbs":With CreateObject(StrReverse("PTTHLMX.2LMXSM"'.
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://02.ssdzams.co.cc/x/img.php?d=1

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_pdf_script_00000067.bin` `ad55c8e83a5896a04b2012c676820daeab2b84cc539e444c6366e79f55a571c5`	pdf-embedded-script	PDF decompressed stream script payload at offset 0x67	63 bytes

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