modiloader | c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b

General

Target

c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe
Size

804KB
MD5

0b2a0a1dddacb93c50311469b3583b70
SHA1

22f0dd1b0d00b1de36697bc9986b8905f8a222f6
SHA256

c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b
SHA512

4fda46be71993467fcdd3cc71df54c72769f250f0ba479dfa6019d83f67e7f859b8da4a34eaa71cd4663539cdf17733be94df988924da2d8bc1a714f2ac8e8d0
SSDEEP

24576:y2O+HDP76i8WNlyUjawUYyyr7RrU7WKZb:i+HDPelWVjnyuJzMb

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 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1488-56-0x0000000000400000-0x00000000005BF000-memory.dmp	modiloader_stage2
behavioral1/memory/1488-62-0x0000000000400000-0x00000000005BF000-memory.dmp	modiloader_stage2
behavioral1/memory/1752-64-0x0000000000400000-0x00000000005BF000-memory.dmp	modiloader_stage2
behavioral1/memory/1752-66-0x0000000000400000-0x00000000005BF000-memory.dmp	modiloader_stage2
behavioral1/memory/1752-67-0x0000000000400000-0x00000000005BF000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1752 mstwain32.exe

pid	process
1752	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:

c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exemstwain32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Wine	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe
Key opened	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Wine	mstwain32.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1488-54-0x0000000000400000-0x00000000005BF000-memory.dmp	themida
behavioral1/memory/1488-56-0x0000000000400000-0x00000000005BF000-memory.dmp	themida
C:\Windows\mstwain32.exe	themida
behavioral1/memory/1752-61-0x0000000000400000-0x00000000005BF000-memory.dmp	themida
behavioral1/memory/1488-62-0x0000000000400000-0x00000000005BF000-memory.dmp	themida
behavioral1/memory/1752-64-0x0000000000400000-0x00000000005BF000-memory.dmp	themida
behavioral1/memory/1752-66-0x0000000000400000-0x00000000005BF000-memory.dmp	themida
behavioral1/memory/1752-67-0x0000000000400000-0x00000000005BF000-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
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.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:

c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exemstwain32.exe

pid process

1488 c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe
1752 mstwain32.exe

pid	process
1488	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe
1752	mstwain32.exe

Drops file in Windows directory 4 IoCs

Processes:

mstwain32.exec63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe

description	ioc	process
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe
File opened for modification	C:\Windows\mstwain32.exe	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.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:

c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exemstwain32.exe

pid process

1488 c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe
1752 mstwain32.exe

pid	process
1488	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe
1752	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	1488	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe
Token: SeDebugPrivilege	1752	mstwain32.exe
Token: SeDebugPrivilege	1752	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1752 mstwain32.exe
1752 mstwain32.exe

pid	process
1752	mstwain32.exe
1752	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe

description	pid	process	target process
PID 1488 wrote to memory of 1752	1488	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe	mstwain32.exe
PID 1488 wrote to memory of 1752	1488	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe	mstwain32.exe
PID 1488 wrote to memory of 1752	1488	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe	mstwain32.exe
PID 1488 wrote to memory of 1752	1488	c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.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\c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.exe
"C:\Users\Admin\AppData\Local\Temp\c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b.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:1488

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:1752

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

Replay Monitor

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Downloads

C:\Windows\mstwain32.exe
Filesize
804KB

MD5
0b2a0a1dddacb93c50311469b3583b70

SHA1
22f0dd1b0d00b1de36697bc9986b8905f8a222f6

SHA256
c63a3e8be50430ca423f9b8ae8c072e96d61703e8bda2fcebf6adf7e0893b08b

SHA512
4fda46be71993467fcdd3cc71df54c72769f250f0ba479dfa6019d83f67e7f859b8da4a34eaa71cd4663539cdf17733be94df988924da2d8bc1a714f2ac8e8d0

Download Submit
memory/1488-60-0x0000000005310000-0x00000000054CF000-memory.dmp

Filesize
1.7MB

Download
memory/1488-56-0x0000000000400000-0x00000000005BF000-memory.dmp

Filesize
1.7MB

Download
memory/1488-57-0x00000000046A0000-0x00000000046B0000-memory.dmp

Filesize
64KB

Download
memory/1488-55-0x0000000076771000-0x0000000076773000-memory.dmp

Filesize
8KB

Download
memory/1488-54-0x0000000000400000-0x00000000005BF000-memory.dmp

Filesize
1.7MB

Download
memory/1488-62-0x0000000000400000-0x00000000005BF000-memory.dmp

Filesize
1.7MB

Download
memory/1752-58-0x0000000000000000-mapping.dmp

Download
memory/1752-61-0x0000000000400000-0x00000000005BF000-memory.dmp

Filesize
1.7MB

Download
memory/1752-64-0x0000000000400000-0x00000000005BF000-memory.dmp

Filesize
1.7MB

Download
memory/1752-65-0x0000000004760000-0x000000000476E000-memory.dmp

Filesize
56KB

Download
memory/1752-66-0x0000000000400000-0x00000000005BF000-memory.dmp

Filesize
1.7MB

Download
memory/1752-67-0x0000000000400000-0x00000000005BF000-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