modiloader | 4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350

General

Target

4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.exe
Size

501KB
MD5

22c7352cf20e3f8559daad372ab7d7b0
SHA1

9e7ba9959e39270da176d49c5218e32d6f211def
SHA256

4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350
SHA512

2f9316116150a834cd4e3cd97adc08c8d775abf12b66a7f4cb91845cf2977963cc0039ed01191357ff5511a86ecdd2912cbceee7106abf9f572e24e3a537f827
SSDEEP

12288:RYnBSkuVUeZdYGwTrYnBSkuVUeZdYGwT5:eSkuiGwTASkuiGwT

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

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

ModiLoader Second Stage 1 IoCs

resource	yara_rule
behavioral1/files/0x00140000000054ab-57.dat	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
1496	mstwain32.exe

Deletes itself 1 IoCs

pid	Process
1496	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-1-5-21-2292972927-2705560509-2768824231-1000\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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.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 3 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.exe
File opened for modification	C:\Windows\mstwain32.exe	4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.exe
File created	C:\Windows\ntdtcstp.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 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	704	4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.exe
Token: SeBackupPrivilege	1164	vssvc.exe
Token: SeRestorePrivilege	1164	vssvc.exe
Token: SeAuditPrivilege	1164	vssvc.exe
Token: SeDebugPrivilege	1496	mstwain32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
704	4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 704 wrote to memory of 1496	704	4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.exe	30
PID 704 wrote to memory of 1496	704	4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.exe	30
PID 704 wrote to memory of 1496	704	4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.exe	30
PID 704 wrote to memory of 1496	704	4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.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\4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.exe
"C:\Users\Admin\AppData\Local\Temp\4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.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:704
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350.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
  - System policy modification
  PID:1496

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1164

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
501KB

MD5
22c7352cf20e3f8559daad372ab7d7b0

SHA1
9e7ba9959e39270da176d49c5218e32d6f211def

SHA256
4b4bd3924f3858c146d17ee3ae051c29749f2706d9da554180dbf95fa3e07350

SHA512
2f9316116150a834cd4e3cd97adc08c8d775abf12b66a7f4cb91845cf2977963cc0039ed01191357ff5511a86ecdd2912cbceee7106abf9f572e24e3a537f827

Download Submit
memory/704-54-0x0000000074AD1000-0x0000000074AD3000-memory.dmp

Filesize
8KB

Download
memory/704-55-0x0000000073FF1000-0x0000000073FF3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads