modiloader | d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f

General

Target

d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
Size

1.4MB
MD5

06766c6b7cbb756db14010fb822ace01
SHA1

229bc192b55248d31c46e059fa12d9304c9e36ed
SHA256

d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f
SHA512

1bb6f9c6ed23830e556b556e1d3e17cc8284443ac99913a027febc81ad9c271e7ef56770d8cfbb96a5232cfe51639763aa63b902a1e5ac83fbfdea6814565e48
SSDEEP

24576:2usQqSvM171SMKs64y8GJL1Uc16NV7UwyXK8IHTR3fUs9SUIzZTh4Z1R8sCMBWi:IMMPe8Ex2Y1qfUssVThW16hMB

Score

10^/10

modiloader evasion persistence themida trojan

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

mstwain32.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

ModiLoader Second Stage 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/900-56-0x0000000000400000-0x000000000065E000-memory.dmp	modiloader_stage2
behavioral1/memory/900-59-0x0000000000400000-0x000000000065E000-memory.dmp	modiloader_stage2
behavioral1/memory/380-63-0x0000000000400000-0x000000000065E000-memory.dmp	modiloader_stage2
behavioral1/memory/380-64-0x0000000000400000-0x000000000065E000-memory.dmp	modiloader_stage2
behavioral1/memory/380-65-0x0000000000400000-0x000000000065E000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

380 mstwain32.exe
Deletes itself 1 IoCs

Processes:

mstwain32.exe

pid process

380 mstwain32.exe

pid	process
380	mstwain32.exe

pid	process
380	mstwain32.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exemstwain32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Wine	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Wine	mstwain32.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/900-54-0x0000000000400000-0x000000000065E000-memory.dmp	themida
behavioral1/memory/900-56-0x0000000000400000-0x000000000065E000-memory.dmp	themida
C:\Windows\mstwain32.exe	themida
behavioral1/memory/900-59-0x0000000000400000-0x000000000065E000-memory.dmp	themida
behavioral1/memory/380-60-0x0000000000400000-0x000000000065E000-memory.dmp	themida
behavioral1/memory/380-63-0x0000000000400000-0x000000000065E000-memory.dmp	themida
behavioral1/memory/380-64-0x0000000000400000-0x000000000065E000-memory.dmp	themida
behavioral1/memory/380-65-0x0000000000400000-0x000000000065E000-memory.dmp	themida

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mstwain32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

mstwain32.exed683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstwain32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exemstwain32.exe

pid process

900 d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
380 mstwain32.exe

pid	process
900	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
380	mstwain32.exe

Drops file in Windows directory 4 IoCs

Processes:

mstwain32.exed683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe

description	ioc	process
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
File opened for modification	C:\Windows\mstwain32.exe	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exemstwain32.exe

pid process

900 d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
380 mstwain32.exe

pid	process
900	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
380	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	900	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
Token: SeBackupPrivilege	1716	vssvc.exe
Token: SeRestorePrivilege	1716	vssvc.exe
Token: SeAuditPrivilege	1716	vssvc.exe
Token: SeDebugPrivilege	380	mstwain32.exe
Token: SeDebugPrivilege	380	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

380 mstwain32.exe
380 mstwain32.exe

pid	process
380	mstwain32.exe
380	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe

description	pid	process	target process
PID 900 wrote to memory of 380	900	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe	mstwain32.exe
PID 900 wrote to memory of 380	900	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe	mstwain32.exe
PID 900 wrote to memory of 380	900	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe	mstwain32.exe
PID 900 wrote to memory of 380	900	d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe	mstwain32.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

mstwain32.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

C:\Users\Admin\AppData\Local\Temp\d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe
"C:\Users\Admin\AppData\Local\Temp\d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe"
1⤵
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:900

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f.exe"
2⤵
- UAC bypass
- Executes dropped EXE
- Deletes itself
- Identifies Wine through registry keys
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:380

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1716

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

1

T1089

Modify Registry

3

T1112

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

1

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\mstwain32.exe
Filesize
1.4MB

MD5
06766c6b7cbb756db14010fb822ace01

SHA1
229bc192b55248d31c46e059fa12d9304c9e36ed

SHA256
d683a53753fd240f10ba549d716efad4eac0e7888d0f2005825d2a1e33ae766f

SHA512
1bb6f9c6ed23830e556b556e1d3e17cc8284443ac99913a027febc81ad9c271e7ef56770d8cfbb96a5232cfe51639763aa63b902a1e5ac83fbfdea6814565e48

Download Submit
memory/380-57-0x0000000000000000-mapping.dmp

Download
memory/380-60-0x0000000000400000-0x000000000065E000-memory.dmp

Filesize
2.4MB

Download
memory/380-62-0x0000000004870000-0x000000000487E000-memory.dmp

Filesize
56KB

Download
memory/380-63-0x0000000000400000-0x000000000065E000-memory.dmp

Filesize
2.4MB

Download
memory/380-64-0x0000000000400000-0x000000000065E000-memory.dmp

Filesize
2.4MB

Download
memory/380-65-0x0000000000400000-0x000000000065E000-memory.dmp

Filesize
2.4MB

Download
memory/900-54-0x0000000000400000-0x000000000065E000-memory.dmp

Filesize
2.4MB

Download
memory/900-55-0x0000000076121000-0x0000000076123000-memory.dmp

Filesize
8KB

Download
memory/900-56-0x0000000000400000-0x000000000065E000-memory.dmp

Filesize
2.4MB

Download
memory/900-59-0x0000000000400000-0x000000000065E000-memory.dmp

Filesize
2.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads