modiloader | d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d

General

Target

d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe
Size

109KB
MD5

6c400d6759138960e13868679b704906
SHA1

f85ca5590c739682d21d9ead56f0f3d5397bf1bd
SHA256

d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d
SHA512

ebd4aee49fd07286b392905e18c4183ec2e6fee130c85339a22239ba87f8537c291924362b829aaecb3274baf2b21283038018f0a3af3a9dadc57bdea3fbeb0d
SSDEEP

3072:1oy8j7VnNdrPHaSekwi+mW+20vCaqLrout:V8jZ7rvaU3+mWr0KaCoS

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 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/836-55-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral1/memory/836-56-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral1/memory/836-59-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral1/memory/616-61-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral1/memory/616-63-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

616 mstwain32.exe

pid	process
616	mstwain32.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/836-55-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/836-56-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/836-59-0x0000000000400000-0x000000000044F000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral1/memory/616-61-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/616-63-0x0000000000400000-0x000000000044F000-memory.dmp	upx

Deletes itself 1 IoCs

Processes:

mstwain32.exe

pid process

616 mstwain32.exe

pid	process
616	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-1-5-21-3385717845-2518323428-350143044-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\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:

d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.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:

d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe
File opened for modification	C:\Windows\mstwain32.exe	d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.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:

d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	836	d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe
Token: SeBackupPrivilege	840	vssvc.exe
Token: SeRestorePrivilege	840	vssvc.exe
Token: SeAuditPrivilege	840	vssvc.exe
Token: SeDebugPrivilege	616	mstwain32.exe
Token: SeDebugPrivilege	616	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

616 mstwain32.exe
616 mstwain32.exe

pid	process
616	mstwain32.exe
616	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe

description	pid	process	target process
PID 836 wrote to memory of 616	836	d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe	mstwain32.exe
PID 836 wrote to memory of 616	836	d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe	mstwain32.exe
PID 836 wrote to memory of 616	836	d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe	mstwain32.exe
PID 836 wrote to memory of 616	836	d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.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\d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe
"C:\Users\Admin\AppData\Local\Temp\d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:836

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d.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:616

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:840

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
6c400d6759138960e13868679b704906

SHA1
f85ca5590c739682d21d9ead56f0f3d5397bf1bd

SHA256
d2f306e7d1eed37bb346106ad9c90827f7e5c9c1de2582639fdbaa876ee02a2d

SHA512
ebd4aee49fd07286b392905e18c4183ec2e6fee130c85339a22239ba87f8537c291924362b829aaecb3274baf2b21283038018f0a3af3a9dadc57bdea3fbeb0d

Download Submit
memory/616-57-0x0000000000000000-mapping.dmp

Download
memory/616-61-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/616-62-0x0000000000550000-0x000000000055E000-memory.dmp

Filesize
56KB

Download
memory/616-63-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/836-54-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/836-55-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/836-56-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/836-59-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads