modiloader | 9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8

General

Target

9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exe
Size

108KB
MD5

844e569740ff9bd028f5da0f6406b206
SHA1

9a69d0e5ddbee0ed16dcd3eb2c52af19655f1962
SHA256

9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8
SHA512

5d3b9dde61291c6219e59658e13b187d7d6993321e44440ddf67a1ade66d583a4ef033e7cc8250d92fb0480e3efcda7fa2f8c9403a7d3f712fd45851493ce78b
SSDEEP

1536:pVuNAXTj4Fj/91/NnLZqeWEPVpa8DzePjkgcwYS7S5+Vfk09+2HxUnMTsWdinout:Hoy8j7VnNdrPHaSekwi+mW+2uAFgout

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

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

ModiLoader Second Stage 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1744-59-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1344-61-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/1344-62-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1344 mstwain32.exe

pid	process
1344	mstwain32.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1744-55-0x0000000000400000-0x0000000000450000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral1/memory/1744-59-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/1344-61-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/1344-62-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

mstwain32.exe

pid process

1344 mstwain32.exe

pid	process
1344	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:

9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.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:

mstwain32.exe9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.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	9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exe
File opened for modification	C:\Windows\mstwain32.exe	9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.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:

9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	1744	9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exe
Token: SeBackupPrivilege	1096	vssvc.exe
Token: SeRestorePrivilege	1096	vssvc.exe
Token: SeAuditPrivilege	1096	vssvc.exe
Token: SeDebugPrivilege	1344	mstwain32.exe
Token: SeDebugPrivilege	1344	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1344 mstwain32.exe
1344 mstwain32.exe

pid	process
1344	mstwain32.exe
1344	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exe

description	pid	process	target process
PID 1744 wrote to memory of 1344	1744	9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exe	mstwain32.exe
PID 1744 wrote to memory of 1344	1744	9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exe	mstwain32.exe
PID 1744 wrote to memory of 1344	1744	9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exe	mstwain32.exe
PID 1744 wrote to memory of 1344	1744	9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.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\9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exe
"C:\Users\Admin\AppData\Local\Temp\9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8.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:1344

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1096

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
108KB

MD5
844e569740ff9bd028f5da0f6406b206

SHA1
9a69d0e5ddbee0ed16dcd3eb2c52af19655f1962

SHA256
9a321823d67a4bee20585589357f70eaca6c5d71969625e185f56ca67e2166c8

SHA512
5d3b9dde61291c6219e59658e13b187d7d6993321e44440ddf67a1ade66d583a4ef033e7cc8250d92fb0480e3efcda7fa2f8c9403a7d3f712fd45851493ce78b

Download Submit
memory/1344-56-0x0000000000000000-mapping.dmp

Download
memory/1344-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1344-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1744-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

Filesize
8KB

Download
memory/1744-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1744-59-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads