Malware Analysis Report

2025-03-14 22:31

Sample ID 240304-radq5sda34
Target b24d204772ac32d11a09fa611078a1b4
SHA256 1b3ff3186a922c56d2878b848eae40037a754882705c2af4b33e851cf26d7859
Tags
upx persistence
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

1b3ff3186a922c56d2878b848eae40037a754882705c2af4b33e851cf26d7859

Threat Level: Likely malicious

The file b24d204772ac32d11a09fa611078a1b4 was found to be: Likely malicious.

Malicious Activity Summary

upx persistence

Modifies AppInit DLL entries

UPX packed file

Deletes itself

Executes dropped EXE

Loads dropped DLL

Drops file in System32 directory

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-04 13:59

Signatures

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-04 13:59

Reported

2024-03-04 14:01

Platform

win7-20240221-en

Max time kernel

150s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe"

Signatures

Modifies AppInit DLL entries

persistence

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\mduaeyk.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\mduaeyk.exe C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe N/A
File opened for modification C:\Windows\SysWOW64\mduaeyk.exe C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe N/A
File created C:\Windows\SysWOW64\mduaey.dll C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe

"C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe"

C:\Windows\SysWOW64\mduaeyk.exe

C:\Windows\system32\mduaeyk.exe ˜‰

C:\Windows\SysWOW64\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe.bat

Network

N/A

Files

memory/2084-0-0x0000000000400000-0x000000000040F000-memory.dmp

\Windows\SysWOW64\mduaeyk.exe

MD5 b24d204772ac32d11a09fa611078a1b4
SHA1 d1037bacf78a1553060a3fccf9a366552bba95ee
SHA256 1b3ff3186a922c56d2878b848eae40037a754882705c2af4b33e851cf26d7859
SHA512 633c488a871fcd059fbe656980cf142fa32414c101db4b86655d2557583e5c2c721d8532776c41791c9370d8914773eee9c791f6b1b16b2637a75bc5c40d904d

memory/2084-4-0x0000000000220000-0x000000000022F000-memory.dmp

memory/2084-10-0x0000000000220000-0x000000000022F000-memory.dmp

memory/1408-12-0x0000000000400000-0x000000000040F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe.bat

MD5 471f2c1ffcb997493e64179948ca43ab
SHA1 10b484c6f76a430ca133dc51b21891a303b3d808
SHA256 e52d758998118a279a07385b2cf5b5793a1335308eb6c6eb5deaecf248bf4e49
SHA512 2419fe56232ad920124849d468545899f759a25873810a299a5da2e15976dc92bf485f1ffbf9c5fc1536fcf4a1b01c6495c15d0789b64332be1a2491c1da1458

memory/2084-20-0x0000000000400000-0x000000000040F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-04 13:59

Reported

2024-03-04 14:01

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe"

Signatures

Modifies AppInit DLL entries

persistence

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\mduaeyk.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\mduaey.dll C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe N/A
File created C:\Windows\SysWOW64\mduaeyk.exe C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe N/A
File opened for modification C:\Windows\SysWOW64\mduaeyk.exe C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe

"C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe"

C:\Windows\SysWOW64\mduaeyk.exe

C:\Windows\system32\mduaeyk.exe ˜‰

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 179.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 208.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

memory/2632-0-0x0000000000400000-0x000000000040F000-memory.dmp

C:\Windows\SysWOW64\mduaeyk.exe

MD5 b24d204772ac32d11a09fa611078a1b4
SHA1 d1037bacf78a1553060a3fccf9a366552bba95ee
SHA256 1b3ff3186a922c56d2878b848eae40037a754882705c2af4b33e851cf26d7859
SHA512 633c488a871fcd059fbe656980cf142fa32414c101db4b86655d2557583e5c2c721d8532776c41791c9370d8914773eee9c791f6b1b16b2637a75bc5c40d904d

memory/2632-8-0x0000000000400000-0x000000000040F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\b24d204772ac32d11a09fa611078a1b4.exe.bat

MD5 471f2c1ffcb997493e64179948ca43ab
SHA1 10b484c6f76a430ca133dc51b21891a303b3d808
SHA256 e52d758998118a279a07385b2cf5b5793a1335308eb6c6eb5deaecf248bf4e49
SHA512 2419fe56232ad920124849d468545899f759a25873810a299a5da2e15976dc92bf485f1ffbf9c5fc1536fcf4a1b01c6495c15d0789b64332be1a2491c1da1458

memory/1760-10-0x0000000000400000-0x000000000040F000-memory.dmp