modiloader | 6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9

General

Target

6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.exe
Size

108KB
MD5

1dcdfb076cc95f904a32a7de45a75596
SHA1

f20358e601c20d0aa4a512f3932c9db86b631951
SHA256

6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9
SHA512

e169ae9901aec37c73a2282bf8bf6ae6a3c3970ed5fecda61c56f055f41e13a2585b1b3936b33971ab3d8a8a1f3946d247e0be38cbf0422b3ac3e07834341781
SSDEEP

3072:roy8j7VnNdrPHaSekwi+mW+2h/6qoout:r8jZ7rvaU3+mWrhiVoS

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

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral1/memory/1788-55-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1788-59-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1704-60-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1704-62-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
1704	mstwain32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1788-55-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/files/0x000c0000000054a8-57.dat	upx
behavioral1/memory/1788-59-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/1704-60-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/1704-62-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
1704	mstwain32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.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

description	ioc	Process
File opened for modification	C:\Windows\mstwain32.exe	6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.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

description	pid	Process
Token: SeDebugPrivilege	1788	6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.exe
Token: SeBackupPrivilege	1272	vssvc.exe
Token: SeRestorePrivilege	1272	vssvc.exe
Token: SeAuditPrivilege	1272	vssvc.exe
Token: SeDebugPrivilege	1704	mstwain32.exe
Token: SeDebugPrivilege	1704	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1704	mstwain32.exe
1704	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1704	1788	6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.exe	30
PID 1788 wrote to memory of 1704	1788	6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.exe	30
PID 1788 wrote to memory of 1704	1788	6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.exe	30
PID 1788 wrote to memory of 1704	1788	6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.exe	30

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

C:\Users\Admin\AppData\Local\Temp\6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.exe
"C:\Users\Admin\AppData\Local\Temp\6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9.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:1704

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1272

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
108KB

MD5
1dcdfb076cc95f904a32a7de45a75596

SHA1
f20358e601c20d0aa4a512f3932c9db86b631951

SHA256
6c51e2689c1c4dd4f2237eb0935f05af18c91582994ae8592c51992b9c68bee9

SHA512
e169ae9901aec37c73a2282bf8bf6ae6a3c3970ed5fecda61c56f055f41e13a2585b1b3936b33971ab3d8a8a1f3946d247e0be38cbf0422b3ac3e07834341781

Download Submit
memory/1704-60-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1704-61-0x0000000001E30000-0x0000000001E3E000-memory.dmp

Filesize
56KB

Download
memory/1704-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1788-54-0x00000000761F1000-0x00000000761F3000-memory.dmp

Filesize
8KB

Download
memory/1788-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1788-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads