modiloader | 7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6

General

Target

7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe
Size

109KB
MD5

ba173f99a9d352fafa445193d7b46110
SHA1

ce43f8cb8ed504cd0e17abc57c499ce6292dfd18
SHA256

7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6
SHA512

7157d9b2f4f20a25e8278c7eb573563ede394b32117b5bc0b3cb1ed0ca727d52807216bdfe8b28d6974d9da0223067ac0d025078a214947f9f35febf11c87e78
SSDEEP

3072:zoy8j7VnNdrPHaSekwi+mW+2egjHBXcuQ/out:T8jZ7rvaU3+mWreIB8oS

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

ModiLoader Second Stage 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/948-55-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/948-56-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/948-59-0x00000000028C0000-0x00000000028D0000-memory.dmp	modiloader_stage2
behavioral1/memory/948-64-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1660-65-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1660 mstwain32.exe

pid	process
1660	mstwain32.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/948-55-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/948-56-0x0000000000400000-0x0000000000450000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral1/memory/1660-62-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/948-64-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/1660-65-0x0000000000400000-0x0000000000450000-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
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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:

mstwain32.exe7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstwain32.exe

Drops file in Windows directory 4 IoCs

Processes:

7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe
File opened for modification	C:\Windows\mstwain32.exe	7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.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 6 IoCs

Processes:

7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	948	7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe
Token: SeBackupPrivilege	1768	vssvc.exe
Token: SeRestorePrivilege	1768	vssvc.exe
Token: SeAuditPrivilege	1768	vssvc.exe
Token: SeDebugPrivilege	1660	mstwain32.exe
Token: SeDebugPrivilege	1660	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1660 mstwain32.exe
1660 mstwain32.exe

pid	process
1660	mstwain32.exe
1660	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe

description	pid	process	target process
PID 948 wrote to memory of 1660	948	7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe	mstwain32.exe
PID 948 wrote to memory of 1660	948	7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe	mstwain32.exe
PID 948 wrote to memory of 1660	948	7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe	mstwain32.exe
PID 948 wrote to memory of 1660	948	7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.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

C:\Users\Admin\AppData\Local\Temp\7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe
"C:\Users\Admin\AppData\Local\Temp\7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:948

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:1660

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1768

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

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\mstwain32.exe
Filesize
109KB

MD5
ba173f99a9d352fafa445193d7b46110

SHA1
ce43f8cb8ed504cd0e17abc57c499ce6292dfd18

SHA256
7738ee1d4ed0e0abd6de677cf29655fdac63f1f10c69b892fd8e509f0a14c3a6

SHA512
7157d9b2f4f20a25e8278c7eb573563ede394b32117b5bc0b3cb1ed0ca727d52807216bdfe8b28d6974d9da0223067ac0d025078a214947f9f35febf11c87e78

Download Submit
memory/948-54-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/948-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/948-56-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/948-61-0x00000000035E0000-0x0000000003630000-memory.dmp

Filesize
320KB

Download
memory/948-60-0x00000000035E0000-0x0000000003630000-memory.dmp

Filesize
320KB

Download
memory/948-59-0x00000000028C0000-0x00000000028D0000-memory.dmp

Filesize
64KB

Download
memory/948-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1660-57-0x0000000000000000-mapping.dmp

Download
memory/1660-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1660-65-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1660-66-0x0000000000600000-0x000000000060E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads