modiloader | 8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82

General

Target

8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
Size

755KB
MD5

71820cd95149cb2ef75316629d2f35ba
SHA1

eee420af1880dd626c8b9d935c6afb146cc26383
SHA256

8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82
SHA512

12d9324048842d2fc7b0b12a769d4a6d38de9abf802fff305d6df94be19c41be28c4f4ec95299eee3aabc4ede7b1a16399c3e436ebafd7ffa79917a4865afb47
SSDEEP

12288:JY3lxQ03Q/Xm4fKJEVnXRFJwxMo6h075n8bzpidgD44uY14OGevq+VCg8HmzxJkM:G1xC/W4fTVB7wZY0hC9cgvuYfGdSh8Gz

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 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1552-56-0x0000000000400000-0x00000000005B0000-memory.dmp	modiloader_stage2
behavioral1/memory/1552-60-0x0000000000400000-0x00000000005B0000-memory.dmp	modiloader_stage2
behavioral1/memory/1760-62-0x0000000000400000-0x00000000005B0000-memory.dmp	modiloader_stage2
behavioral1/memory/1760-64-0x0000000000400000-0x00000000005B0000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1760 mstwain32.exe

pid	process
1760	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:

mstwain32.exe8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Wine	mstwain32.exe
Key opened	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Wine	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe

Themida packer 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1552-54-0x0000000000400000-0x00000000005B0000-memory.dmp	themida
behavioral1/memory/1552-56-0x0000000000400000-0x00000000005B0000-memory.dmp	themida
C:\Windows\mstwain32.exe	themida
behavioral1/memory/1552-60-0x0000000000400000-0x00000000005B0000-memory.dmp	themida
behavioral1/memory/1760-62-0x0000000000400000-0x00000000005B0000-memory.dmp	themida
behavioral1/memory/1760-64-0x0000000000400000-0x00000000005B0000-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-1-5-21-3406023954-474543476-3319432036-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\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:

8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exemstwain32.exe

pid process

1552 8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
1760 mstwain32.exe

pid	process
1552	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
1760	mstwain32.exe

Drops file in Windows directory 4 IoCs

Processes:

8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
File opened for modification	C:\Windows\mstwain32.exe	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.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:

8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exemstwain32.exe

pid process

1552 8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
1760 mstwain32.exe

pid	process
1552	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
1760	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	1552	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
Token: SeDebugPrivilege	1760	mstwain32.exe
Token: SeDebugPrivilege	1760	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1760 mstwain32.exe
1760 mstwain32.exe

pid	process
1760	mstwain32.exe
1760	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe

description	pid	process	target process
PID 1552 wrote to memory of 1760	1552	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe	mstwain32.exe
PID 1552 wrote to memory of 1760	1552	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe	mstwain32.exe
PID 1552 wrote to memory of 1760	1552	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe	mstwain32.exe
PID 1552 wrote to memory of 1760	1552	8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.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\8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.exe
"C:\Users\Admin\AppData\Local\Temp\8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82.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:1552

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe"
2⤵
- UAC bypass
- Executes dropped EXE
- 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:1760

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

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Downloads

C:\Windows\mstwain32.exe
Filesize
755KB

MD5
71820cd95149cb2ef75316629d2f35ba

SHA1
eee420af1880dd626c8b9d935c6afb146cc26383

SHA256
8838cee9ae80752b221297980061b50cc33988014b9dd90502cadbd18533cb82

SHA512
12d9324048842d2fc7b0b12a769d4a6d38de9abf802fff305d6df94be19c41be28c4f4ec95299eee3aabc4ede7b1a16399c3e436ebafd7ffa79917a4865afb47

Download Submit
memory/1552-54-0x0000000000400000-0x00000000005B0000-memory.dmp

Filesize
1.7MB

Download
memory/1552-55-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

Download
memory/1552-56-0x0000000000400000-0x00000000005B0000-memory.dmp

Filesize
1.7MB

Download
memory/1552-57-0x0000000004790000-0x00000000047A0000-memory.dmp

Filesize
64KB

Download
memory/1552-60-0x0000000000400000-0x00000000005B0000-memory.dmp

Filesize
1.7MB

Download
memory/1760-58-0x0000000000000000-mapping.dmp

Download
memory/1760-62-0x0000000000400000-0x00000000005B0000-memory.dmp

Filesize
1.7MB

Download
memory/1760-63-0x0000000004890000-0x000000000489E000-memory.dmp

Filesize
56KB

Download
memory/1760-64-0x0000000000400000-0x00000000005B0000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads