modiloader | 23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09

General

Target

23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe
Size

196KB
MD5

c80ca4c9647bd27086411761ddcfec2a
SHA1

0593c9eb97730bce5beebea85a96294a7f26a68a
SHA256

23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09
SHA512

569ba0770b97daef237e51d9a26e2e7268032a2e05b6834d64608070c75fb251290d04ba6bb15b721e9c0260379ce3a2a2f04966af5f7c5d0e1369e57da698af
SSDEEP

6144:3WtW1DSzqB1KoSYGJHe8fAIwgw4lAAx9BhmroBib:3t32oSYGJHe8fAIwgw4lAAx9BhmroBi

Score

10^/10

modiloader evasion persistence trojan upx

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/748-55-0x0000000000400000-0x000000000047A000-memory.dmp	modiloader_stage2
behavioral1/memory/1756-61-0x0000000000400000-0x000000000047A000-memory.dmp	modiloader_stage2
behavioral1/memory/748-62-0x0000000000400000-0x000000000047A000-memory.dmp	modiloader_stage2
behavioral1/memory/1756-64-0x0000000000400000-0x000000000047A000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1756 mstwain32.exe

pid	process
1756	mstwain32.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/748-55-0x0000000000400000-0x000000000047A000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral1/memory/1756-61-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral1/memory/748-62-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral1/memory/1756-64-0x0000000000400000-0x000000000047A000-memory.dmp	upx

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.exe23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.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	23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe

Drops file in Windows directory 4 IoCs

Processes:

23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe
File opened for modification	C:\Windows\mstwain32.exe	23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.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 use of AdjustPrivilegeToken 6 IoCs

Processes:

23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	748	23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe
Token: SeBackupPrivilege	624	vssvc.exe
Token: SeRestorePrivilege	624	vssvc.exe
Token: SeAuditPrivilege	624	vssvc.exe
Token: SeDebugPrivilege	1756	mstwain32.exe
Token: SeDebugPrivilege	1756	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1756 mstwain32.exe
1756 mstwain32.exe

pid	process
1756	mstwain32.exe
1756	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe

description	pid	process	target process
PID 748 wrote to memory of 1756	748	23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe	mstwain32.exe
PID 748 wrote to memory of 1756	748	23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe	mstwain32.exe
PID 748 wrote to memory of 1756	748	23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe	mstwain32.exe
PID 748 wrote to memory of 1756	748	23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.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\23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe
"C:\Users\Admin\AppData\Local\Temp\23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe"
2⤵
- UAC bypass
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:1756

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:624

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

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\mstwain32.exe
Filesize
196KB

MD5
c80ca4c9647bd27086411761ddcfec2a

SHA1
0593c9eb97730bce5beebea85a96294a7f26a68a

SHA256
23855493b6b9ae2835eda231afa3744fd09dbedf849bd20f043b52d29a9b0d09

SHA512
569ba0770b97daef237e51d9a26e2e7268032a2e05b6834d64608070c75fb251290d04ba6bb15b721e9c0260379ce3a2a2f04966af5f7c5d0e1369e57da698af

Download Submit
memory/748-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download
memory/748-55-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/748-59-0x0000000002B10000-0x0000000002B20000-memory.dmp

Filesize
64KB

Download
memory/748-60-0x0000000002B10000-0x0000000002B8A000-memory.dmp

Filesize
488KB

Download
memory/748-62-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1756-56-0x0000000000000000-mapping.dmp

Download
memory/1756-61-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1756-63-0x00000000005A0000-0x00000000005AE000-memory.dmp

Filesize
56KB

Download
memory/1756-64-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads