modiloader | 04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c

General

Target

04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe
Size

116KB
MD5

ef17d21ad9cdab3c972b9e925b1ceb33
SHA1

46358cea22fefaa33bd27a004b2e7903cbbf6190
SHA256

04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c
SHA512

33d3eecf88f984c5689ee1c33bb412089c81c4a52df81ad6d8038bd0533f370354bf55b0dc89eb8c8fdd0916a070d97612c2eb75901ecf7f44fb21f4bbb7f83c
SSDEEP

3072:CKjMubeiPfNEtjiJCxGGd/6Gh2CQeBnXvQfoyEaG:CKjbeZhJGGxh2nGXvQAxaG

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 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1724-59-0x0000000000400000-0x000000000046D3E0-memory.dmp	modiloader_stage2
behavioral1/memory/584-62-0x0000000000400000-0x000000000046D3E0-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

584 mstwain32.exe

pid	process
584	mstwain32.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1724-55-0x0000000000400000-0x000000000046D3E0-memory.dmp	upx
behavioral1/memory/1724-59-0x0000000000400000-0x000000000046D3E0-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral1/memory/584-61-0x0000000000400000-0x000000000046D3E0-memory.dmp	upx
behavioral1/memory/584-62-0x0000000000400000-0x000000000046D3E0-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

mstwain32.exe

pid process

584 mstwain32.exe

pid	process
584	mstwain32.exe

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-1-5-21-3385717845-2518323428-350143044-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\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:

04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.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

Drops file in Windows directory 3 IoCs

Processes:

04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.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 3 IoCs

Processes:

04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	1724	04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe
Token: SeDebugPrivilege	584	mstwain32.exe
Token: SeDebugPrivilege	584	mstwain32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe

pid process

1724 04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

584 mstwain32.exe
584 mstwain32.exe

pid	process
1724	04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe

pid	process
584	mstwain32.exe
584	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe

description	pid	process	target process
PID 1724 wrote to memory of 584	1724	04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe	mstwain32.exe
PID 1724 wrote to memory of 584	1724	04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe	mstwain32.exe
PID 1724 wrote to memory of 584	1724	04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe	mstwain32.exe
PID 1724 wrote to memory of 584	1724	04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.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\04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe
"C:\Users\Admin\AppData\Local\Temp\04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1724

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c.exe"
2⤵
- UAC bypass
- Executes dropped EXE
- Deletes itself
- 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:584

Network

MITRE ATT&CK Enterprise 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

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mstwain32.exe
Filesize
116KB

MD5
ef17d21ad9cdab3c972b9e925b1ceb33

SHA1
46358cea22fefaa33bd27a004b2e7903cbbf6190

SHA256
04778872ebfe19afd240d9242b58e7b6236c199d7edf3c21c974e40998ae0f1c

SHA512
33d3eecf88f984c5689ee1c33bb412089c81c4a52df81ad6d8038bd0533f370354bf55b0dc89eb8c8fdd0916a070d97612c2eb75901ecf7f44fb21f4bbb7f83c

Download Submit
memory/584-57-0x0000000000000000-mapping.dmp

Download
memory/584-61-0x0000000000400000-0x000000000046D3E0-memory.dmp

Filesize
436KB

Download
memory/584-62-0x0000000000400000-0x000000000046D3E0-memory.dmp

Filesize
436KB

Download
memory/584-63-0x0000000002E00000-0x0000000002E0E000-memory.dmp

Filesize
56KB

Download
memory/1724-54-0x00000000757B1000-0x00000000757B3000-memory.dmp

Filesize
8KB

Download
memory/1724-55-0x0000000000400000-0x000000000046D3E0-memory.dmp

Filesize
436KB

Download
memory/1724-56-0x0000000074341000-0x0000000074343000-memory.dmp

Filesize
8KB

Download
memory/1724-59-0x0000000000400000-0x000000000046D3E0-memory.dmp

Filesize
436KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads