Malware Analysis Report

2025-04-13 20:42

Sample ID 240704-e67b4swhmc
Target 24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118
SHA256 f8c2488e0fe5e80c4e8fb8f71fe66b172dd5cead28c5841bcd8341e4d7c93c96
Tags
modiloader evasion persistence trojan
score
10/10

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
10/10

SHA256

f8c2488e0fe5e80c4e8fb8f71fe66b172dd5cead28c5841bcd8341e4d7c93c96

Threat Level: Known bad

The file 24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

modiloader evasion persistence trojan

UAC bypass

ModiLoader, DBatLoader

ModiLoader Second Stage

Identifies Wine through registry keys

Executes dropped EXE

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Uses Volume Shadow Copy service COM API

Suspicious use of FindShellTrayWindow

System policy modification

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-04 04:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-04 04:34

Reported

2024-07-04 04:36

Platform

win7-20240419-en

Max time kernel

146s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

ModiLoader Second Stage

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Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Wine C:\Windows\mstwain32.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" C:\Windows\mstwain32.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\mstwain32.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe N/A
File opened for modification C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe N/A
File created C:\Windows\ntdtcstp.dll C:\Windows\mstwain32.exe N/A
File created C:\Windows\cmsetac.dll C:\Windows\mstwain32.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A

System policy modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe"

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 cague.no-ip.biz udp

Files

memory/2368-0-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/2368-1-0x0000000000401000-0x000000000041C000-memory.dmp

memory/2368-2-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/2368-3-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/2368-4-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/2368-5-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/2368-6-0x0000000000400000-0x00000000004EB000-memory.dmp

C:\Windows\mstwain32.exe

MD5 24a4bb819be224559f046a18f0f5b3d3
SHA1 9be2740c4b536064b91dc16e2220451ce2382684
SHA256 f8c2488e0fe5e80c4e8fb8f71fe66b172dd5cead28c5841bcd8341e4d7c93c96
SHA512 1d360da31a5f4a08cf753f95a5aa8316149bd8fa242e03cdd2619e0a0df4d229157fa35f8a2f080d2cc08a97b043ff5d10678e2b4121b61e32c1a00f14df7232

memory/2368-18-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/2368-17-0x0000000006050000-0x000000000613B000-memory.dmp

memory/2368-12-0x0000000006050000-0x0000000006060000-memory.dmp

memory/1704-20-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-22-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-23-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-24-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-29-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-28-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-30-0x00000000045C0000-0x00000000045CE000-memory.dmp

memory/1704-32-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-33-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-34-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-35-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-36-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-39-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-38-0x00000000045C0000-0x00000000045CE000-memory.dmp

memory/1704-37-0x0000000000690000-0x0000000000698000-memory.dmp

memory/1704-40-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-41-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-42-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-45-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-46-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-47-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-50-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-53-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-57-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-60-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-63-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-66-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-69-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-72-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-75-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-78-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/1704-81-0x0000000000400000-0x00000000004EB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-04 04:34

Reported

2024-07-04 04:36

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe"

Signatures

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\24a4bb819be224559f046a18f0f5b3d3_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 52.111.229.48:443 tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 25.73.42.20.in-addr.arpa udp

Files

memory/3900-0-0x0000000000400000-0x00000000004EB000-memory.dmp

memory/3900-1-0x0000000000400000-0x00000000004EB000-memory.dmp