modiloader | 411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e

General

Target

411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe
Size

113KB
MD5

27eb476837647fc82c8b7da199d45bf0
SHA1

a346e377217b892ef1676f6d15979908568628dd
SHA256

411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e
SHA512

6e9cc27a5861b6479e1e7ec45cdb63557df3a9b53e76f4a8c511425419f6b3f8f77f3a2fe64f6e827f75a817b370bb618cad4240239ca4352cbd1820e833c9a3
SSDEEP

3072:o1+MJKrUnFYY5z1i0Nmbi5fJBN7yEf9Sout:QIrPj0NmWtN7yEf0oS

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/1184-55-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1184-59-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1648-62-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1648-63-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1648 mstwain32.exe

pid	process
1648	mstwain32.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1184-55-0x0000000000400000-0x0000000000450000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral1/memory/1184-59-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/1648-62-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/1648-63-0x0000000000400000-0x0000000000450000-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
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.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:

411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe
File opened for modification	C:\Windows\mstwain32.exe	411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.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:

411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	1184	411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe
Token: SeDebugPrivilege	1648	mstwain32.exe
Token: SeDebugPrivilege	1648	mstwain32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe

pid process

1184 411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1648 mstwain32.exe
1648 mstwain32.exe

pid	process
1184	411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe

pid	process
1648	mstwain32.exe
1648	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe

description	pid	process	target process
PID 1184 wrote to memory of 1648	1184	411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe	mstwain32.exe
PID 1184 wrote to memory of 1648	1184	411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe	mstwain32.exe
PID 1184 wrote to memory of 1648	1184	411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe	mstwain32.exe
PID 1184 wrote to memory of 1648	1184	411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.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\411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.exe
"C:\Users\Admin\AppData\Local\Temp\411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e.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:1184

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:1648

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
113KB

MD5
27eb476837647fc82c8b7da199d45bf0

SHA1
a346e377217b892ef1676f6d15979908568628dd

SHA256
411c10491ceca5febe92be42ce2fbb3110ad8330d13a9d354c2f3bbbca4b070e

SHA512
6e9cc27a5861b6479e1e7ec45cdb63557df3a9b53e76f4a8c511425419f6b3f8f77f3a2fe64f6e827f75a817b370bb618cad4240239ca4352cbd1820e833c9a3

Download Submit
memory/1184-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

Filesize
8KB

Download
memory/1184-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1184-56-0x00000000742C1000-0x00000000742C3000-memory.dmp

Filesize
8KB

Download
memory/1184-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-57-0x0000000000000000-mapping.dmp

Download
memory/1648-61-0x00000000007E0000-0x00000000007EE000-memory.dmp

Filesize
56KB

Download
memory/1648-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1648-63-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads