Malware Analysis Report

2025-01-22 12:59

Sample ID 240626-l9ke3ssdqq
Target 11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118
SHA256 ccbc9ffe9d43dbc2ab7ce253fd6a7f72446d587b624d4813814f99d032ce2c21
Tags
persistence vmprotect
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

ccbc9ffe9d43dbc2ab7ce253fd6a7f72446d587b624d4813814f99d032ce2c21

Threat Level: Likely malicious

The file 11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

persistence vmprotect

Drops file in Drivers directory

Server Software Component: Terminal Services DLL

Deletes itself

Loads dropped DLL

VMProtect packed file

Drops file in System32 directory

Program crash

Unsigned PE

Suspicious behavior: LoadsDriver

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-26 10:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-26 10:13

Reported

2024-06-26 10:16

Platform

win7-20240419-en

Max time kernel

141s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe"

Signatures

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\drivers\beep.sys C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A

Server Software Component: Terminal Services DLL

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MediaCenter\Parameters\ServiceDll = "C:\\Windows\\system32\\KwuvspD.dll" C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A

Deletes itself

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

VMProtect packed file

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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\KwuvspD.dll C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A

Suspicious behavior: LoadsDriver

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k krnlsvc

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\11A39D~1.EXE > nul

Network

Country Destination Domain Proto
US 8.8.8.8:53 haoaiqian.3322.org udp

Files

memory/2072-0-0x0000000000400000-0x000000000043C7EA-memory.dmp

memory/2072-2-0x0000000000400000-0x000000000043C7EA-memory.dmp

memory/2072-1-0x0000000000401000-0x0000000000426000-memory.dmp

memory/2072-3-0x0000000000400000-0x000000000043C7EA-memory.dmp

\Windows\SysWOW64\KwuvspD.dll

MD5 527849b3765d26c0b89191ab893ee813
SHA1 f032ce42cef07e1b5507fce3b296091dca277938
SHA256 0b268a02cb533fc1538dd34ea00c7cbf94d9cf4e31c46bde7cf8b8397b4fda42
SHA512 b16765cf83c020a66904b039f3401af5fc6e64476c9184fe4799ade17f4d4e32a21c51b667d21db6709ab60718a59fbdb2352903fb8be64e776da5d645fba687

memory/2072-12-0x0000000000401000-0x0000000000426000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-26 10:13

Reported

2024-06-26 10:16

Platform

win10v2004-20240508-en

Max time kernel

142s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe"

Signatures

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\drivers\beep.sys C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A

Server Software Component: Terminal Services DLL

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\MediaCenter\Parameters\ServiceDll = "C:\\Windows\\system32\\KcupsxD.dll" C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A

VMProtect packed file

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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\KcupsxD.dll C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A

Suspicious behavior: LoadsDriver

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\11a39d68a3c64cba4024cd8c3edb9b7b_JaffaCakes118.exe"

C:\Windows\SysWOW64\svchost.exe

C:\Windows\SysWOW64\svchost.exe -k krnlsvc

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3636 -ip 3636

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3636 -s 460

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\11A39D~1.EXE > nul

Network

Country Destination Domain Proto
US 8.8.8.8:53 haoaiqian.3322.org udp
US 8.8.8.8:53 haoaiqian.3322.org udp
US 8.8.8.8:53 haoaiqian.3322.org udp
US 8.8.8.8:53 haoaiqian.3322.org udp
US 8.8.8.8:53 haoaiqian.3322.org udp
US 8.8.8.8:53 haoaiqian.3322.org udp
US 8.8.8.8:53 haoaiqian.3322.org udp

Files

memory/3636-0-0x0000000000400000-0x000000000043C7EA-memory.dmp

memory/3636-1-0x0000000000401000-0x0000000000426000-memory.dmp

memory/3636-2-0x0000000000400000-0x000000000043C7EA-memory.dmp

memory/3636-4-0x0000000000400000-0x000000000043C7EA-memory.dmp

C:\Windows\SysWOW64\KcupsxD.dll

MD5 527849b3765d26c0b89191ab893ee813
SHA1 f032ce42cef07e1b5507fce3b296091dca277938
SHA256 0b268a02cb533fc1538dd34ea00c7cbf94d9cf4e31c46bde7cf8b8397b4fda42
SHA512 b16765cf83c020a66904b039f3401af5fc6e64476c9184fe4799ade17f4d4e32a21c51b667d21db6709ab60718a59fbdb2352903fb8be64e776da5d645fba687

memory/3636-13-0x0000000000401000-0x0000000000426000-memory.dmp