modiloader | 2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d

General

Target

2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exe
Size

270KB
MD5

a70549f0e1e39ddb751bc97c1112082d
SHA1

3a5d118acf7fc0ef5a1e41960a3ec721707769fc
SHA256

2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d
SHA512

86f07507700d99cbe4d7cea7a0cc648d4b7a0745615b557edfbe08835978f8f2e6e3d0c18afcd04668c4c64ac087e8b3797046e58e60739e1a5ac10f1bfaf109
SSDEEP

6144:AG377xS2Vp2CeiorXdwTBgWx4v538pcCJJvH8:rr7xS2Vp6RwTyCpbJJvH8

Score

10^/10

modiloader evasion persistence 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 1 IoCs

Processes:

resource	yara_rule
C:\Windows\mstwain32.exe	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1816 mstwain32.exe
Deletes itself 1 IoCs

Processes:

mstwain32.exe

pid process

1816 mstwain32.exe

pid	process
1816	mstwain32.exe

pid	process
1816	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-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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:

2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.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:

2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exe
File opened for modification	C:\Windows\mstwain32.exe	2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.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:

2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	1716	2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exe
Token: SeBackupPrivilege	1376	vssvc.exe
Token: SeRestorePrivilege	1376	vssvc.exe
Token: SeAuditPrivilege	1376	vssvc.exe
Token: SeDebugPrivilege	1816	mstwain32.exe
Token: SeDebugPrivilege	1816	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1816 mstwain32.exe
1816 mstwain32.exe

pid	process
1816	mstwain32.exe
1816	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exe

description	pid	process	target process
PID 1716 wrote to memory of 1816	1716	2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exe	mstwain32.exe
PID 1716 wrote to memory of 1816	1716	2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exe	mstwain32.exe
PID 1716 wrote to memory of 1816	1716	2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exe	mstwain32.exe
PID 1716 wrote to memory of 1816	1716	2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.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\2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exe
"C:\Users\Admin\AppData\Local\Temp\2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1716

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d.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:1816

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1376

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
270KB

MD5
a70549f0e1e39ddb751bc97c1112082d

SHA1
3a5d118acf7fc0ef5a1e41960a3ec721707769fc

SHA256
2f9044ce1ce89db5e804c3bd9ce3e3892e343861881773f1308b9d326b91777d

SHA512
86f07507700d99cbe4d7cea7a0cc648d4b7a0745615b557edfbe08835978f8f2e6e3d0c18afcd04668c4c64ac087e8b3797046e58e60739e1a5ac10f1bfaf109

Download Submit
memory/1716-54-0x00000000765B1000-0x00000000765B3000-memory.dmp

Filesize
8KB

Download
memory/1816-55-0x0000000000000000-mapping.dmp

Download
memory/1816-58-0x0000000001CD0000-0x0000000001CDE000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads