modiloader | f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9

General

Target

f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe
Size

109KB
MD5

51e681c9776c047880dbcac50f5b0bd2
SHA1

557d36ff2af17adc9c7832f07588902354e32ddd
SHA256

f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9
SHA512

92eb378c160be30aba18b285101f64da325c74e5c3f95b99d50845949b7675e1c6409cb84e4306b4bfc4bd081b8ca3a12e644c162452bd135ef0c14d5d59d2f5
SSDEEP

1536:oVuNAXTj4Fj/91/NnLZqeWEPVpa8DzePjkgcwYS7S5+Vfk09+26IjTsfg6nouy8:Goy8j7VnNdrPHaSekwi+mW+2niout

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 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/880-136-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/880-140-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/1920-146-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/1920-147-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1920 mstwain32.exe

pid	process
1920	mstwain32.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/880-135-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/880-136-0x0000000000400000-0x000000000044F000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral2/memory/880-140-0x0000000000400000-0x000000000044F000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral2/memory/1920-146-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/1920-147-0x0000000000400000-0x000000000044F000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe

Loads dropped DLL 4 IoCs

Processes:

mstwain32.exe

pid process

1920 mstwain32.exe
1920 mstwain32.exe
1920 mstwain32.exe
1920 mstwain32.exe

pid	process
1920	mstwain32.exe
1920	mstwain32.exe
1920	mstwain32.exe
1920	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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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:

f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.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:

f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe
File opened for modification	C:\Windows\mstwain32.exe	f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.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:

f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	880	f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe
Token: SeBackupPrivilege	2176	vssvc.exe
Token: SeRestorePrivilege	2176	vssvc.exe
Token: SeAuditPrivilege	2176	vssvc.exe
Token: SeDebugPrivilege	1920	mstwain32.exe
Token: SeDebugPrivilege	1920	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1920 mstwain32.exe
1920 mstwain32.exe

pid	process
1920	mstwain32.exe
1920	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe

description	pid	process	target process
PID 880 wrote to memory of 1920	880	f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe	mstwain32.exe
PID 880 wrote to memory of 1920	880	f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe	mstwain32.exe
PID 880 wrote to memory of 1920	880	f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.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\f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe
"C:\Users\Admin\AppData\Local\Temp\f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe"
1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:880

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9.exe"
2⤵
- UAC bypass
- Executes dropped EXE
- Loads dropped DLL
- 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:1920

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2176

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

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\cmsetac.dll
Filesize
33KB

MD5
9a676a1406ce681bb2d18b0ea2bfb285

SHA1
80ad02d4804a3f2aadab06ea95d8ee255170177a

SHA256
f670184e8ec80dcc1afce7879c835c7f864d92f3b4135f0895d461a6836edbc1

SHA512
c83b2bf12a8575383416859b5d33ecaf1ee626db5c3a2bdd4b44844b21ff22b98232485f1fad2576c04909b4d7a4be29242647c76305760f67c73f7b9519c41f

Download Submit
C:\Windows\cmsetac.dll
Filesize
33KB

MD5
9a676a1406ce681bb2d18b0ea2bfb285

SHA1
80ad02d4804a3f2aadab06ea95d8ee255170177a

SHA256
f670184e8ec80dcc1afce7879c835c7f864d92f3b4135f0895d461a6836edbc1

SHA512
c83b2bf12a8575383416859b5d33ecaf1ee626db5c3a2bdd4b44844b21ff22b98232485f1fad2576c04909b4d7a4be29242647c76305760f67c73f7b9519c41f

Download Submit
C:\Windows\mstwain32.exe
Filesize
109KB

MD5
51e681c9776c047880dbcac50f5b0bd2

SHA1
557d36ff2af17adc9c7832f07588902354e32ddd

SHA256
f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9

SHA512
92eb378c160be30aba18b285101f64da325c74e5c3f95b99d50845949b7675e1c6409cb84e4306b4bfc4bd081b8ca3a12e644c162452bd135ef0c14d5d59d2f5

Download Submit
C:\Windows\mstwain32.exe
Filesize
109KB

MD5
51e681c9776c047880dbcac50f5b0bd2

SHA1
557d36ff2af17adc9c7832f07588902354e32ddd

SHA256
f909665ca1929e03bc38b8aabafc7ef73547be129e638ebdf4fcfd1451be34b9

SHA512
92eb378c160be30aba18b285101f64da325c74e5c3f95b99d50845949b7675e1c6409cb84e4306b4bfc4bd081b8ca3a12e644c162452bd135ef0c14d5d59d2f5

Download Submit
C:\Windows\ntdtcstp.dll
Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
C:\Windows\ntdtcstp.dll
Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/880-140-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/880-135-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/880-136-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1920-137-0x0000000000000000-mapping.dmp

Download
memory/1920-145-0x0000000000B60000-0x0000000000B6E000-memory.dmp

Filesize
56KB

Download
memory/1920-146-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1920-147-0x0000000000400000-0x000000000044F000-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