modiloader | 04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea

General

Target

04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exe
Size

111KB
MD5

9543d0c7b56ec94ede6dd45f121ea267
SHA1

52d540a1843359117f57c7f679cb268973e6be0f
SHA256

04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea
SHA512

620d038f775d7ff1684e3950cc46c8b8067af4d86f8aa2413a3e84ed58b9822e93614962d3da8842d1f1098b5dee895a1138c3c404e5e3c2b81dfb6735f8f233
SSDEEP

3072:3oy8j7VnNdrPHaSekwi+mW+2FPgutOnout:n8jZ7rvaU3+mWrlsoS

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/2012-55-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/2012-59-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1388-60-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1388-62-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1388 mstwain32.exe

pid	process
1388	mstwain32.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2012-55-0x0000000000400000-0x0000000000450000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral1/memory/2012-59-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/1388-60-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/1388-62-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

mstwain32.exe

pid process

1388 mstwain32.exe

pid	process
1388	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-1-5-21-3406023954-474543476-3319432036-1000\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:

04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.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 4 IoCs

Processes:

04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exemstwain32.exe

description	ioc	process
File opened for modification	C:\Windows\mstwain32.exe	04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.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:

04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	2012	04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exe
Token: SeBackupPrivilege	1500	vssvc.exe
Token: SeRestorePrivilege	1500	vssvc.exe
Token: SeAuditPrivilege	1500	vssvc.exe
Token: SeDebugPrivilege	1388	mstwain32.exe
Token: SeDebugPrivilege	1388	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1388 mstwain32.exe
1388 mstwain32.exe

pid	process
1388	mstwain32.exe
1388	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exe

description	pid	process	target process
PID 2012 wrote to memory of 1388	2012	04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exe	mstwain32.exe
PID 2012 wrote to memory of 1388	2012	04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exe	mstwain32.exe
PID 2012 wrote to memory of 1388	2012	04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exe	mstwain32.exe
PID 2012 wrote to memory of 1388	2012	04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.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\04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exe
"C:\Users\Admin\AppData\Local\Temp\04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea.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:1388

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1500

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\mstwain32.exe
Filesize
111KB

MD5
9543d0c7b56ec94ede6dd45f121ea267

SHA1
52d540a1843359117f57c7f679cb268973e6be0f

SHA256
04190447e027c00d2a5c7f9b46557c2ca40c7e2d173cd0e67ae73e13c5d5efea

SHA512
620d038f775d7ff1684e3950cc46c8b8067af4d86f8aa2413a3e84ed58b9822e93614962d3da8842d1f1098b5dee895a1138c3c404e5e3c2b81dfb6735f8f233

Download Submit
memory/1388-56-0x0000000000000000-mapping.dmp

Download
memory/1388-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1388-61-0x0000000000860000-0x000000000086E000-memory.dmp

Filesize
56KB

Download
memory/1388-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2012-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/2012-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2012-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads