modiloader | 524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac

General

Target

524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe
Size

133KB
MD5

0ddd8e3921b5033d8f7fac0f28ba2ec0
SHA1

8a312948eeec4927a2fa02aea04e6476cbb7a1b2
SHA256

524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac
SHA512

666c8795350833fc843bae1ee6dfaa366dc1abd18657034f8c2aae82295caf52aac62c42cfcd101994412ba32b96abe51baf4d45b63b5844285529329d6dcf77
SSDEEP

3072:n1+MJKrUnFYY5z1i0Nmbi5fJBNpXoutRRDWbVU:tIrPj0NmWtNpXoS3DWJU

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/1212-132-0x0000000000400000-0x000000000045C000-memory.dmp	modiloader_stage2
behavioral2/memory/1212-136-0x0000000000400000-0x000000000045C000-memory.dmp	modiloader_stage2
behavioral2/memory/4312-139-0x0000000000400000-0x000000000045C000-memory.dmp	modiloader_stage2
behavioral2/memory/4312-143-0x0000000000400000-0x000000000045C000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

4312 mstwain32.exe

pid	process
4312	mstwain32.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1212-132-0x0000000000400000-0x000000000045C000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
C:\Windows\mstwain32.exe	upx
behavioral2/memory/1212-136-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral2/memory/4312-139-0x0000000000400000-0x000000000045C000-memory.dmp	upx
behavioral2/memory/4312-143-0x0000000000400000-0x000000000045C000-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:

524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe

Loads dropped DLL 4 IoCs

Processes:

mstwain32.exe

pid process

4312 mstwain32.exe
4312 mstwain32.exe
4312 mstwain32.exe
4312 mstwain32.exe

pid	process
4312	mstwain32.exe
4312	mstwain32.exe
4312	mstwain32.exe
4312	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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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:

mstwain32.exe524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe

description	ioc	process
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
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe

Drops file in Windows directory 4 IoCs

Processes:

524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exemstwain32.exe

description	ioc	process
File opened for modification	C:\Windows\mstwain32.exe	524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.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:

524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	1212	524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe
Token: SeBackupPrivilege	2376	vssvc.exe
Token: SeRestorePrivilege	2376	vssvc.exe
Token: SeAuditPrivilege	2376	vssvc.exe
Token: SeDebugPrivilege	4312	mstwain32.exe
Token: SeDebugPrivilege	4312	mstwain32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe

pid process

1212 524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

4312 mstwain32.exe
4312 mstwain32.exe

pid	process
1212	524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe

pid	process
4312	mstwain32.exe
4312	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe

description	pid	process	target process
PID 1212 wrote to memory of 4312	1212	524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe	mstwain32.exe
PID 1212 wrote to memory of 4312	1212	524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe	mstwain32.exe
PID 1212 wrote to memory of 4312	1212	524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.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\524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe
"C:\Users\Admin\AppData\Local\Temp\524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.exe"
1⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1212

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac.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:4312

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2376

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

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\cmsetac.dll
Filesize
32KB

MD5
7457269b412ab3cf09948dc720ae12c6

SHA1
3d0eb28aad3d14f2a22691382dd2a46bb8af1d19

SHA256
9c655cac18e51316c6e5cc3834a664791fdf5bdeb8ea88640c27624f4ac2cebd

SHA512
e3009af49faeee3d8dfc03c89f957691f36dbcf80927c64fc2aaedbb91aa426f98504f118e96cfb6bbd0a53c0d72a877dd2722d889960a72be67471a4f8c9d0d

Download Submit
C:\Windows\cmsetac.dll
Filesize
32KB

MD5
7457269b412ab3cf09948dc720ae12c6

SHA1
3d0eb28aad3d14f2a22691382dd2a46bb8af1d19

SHA256
9c655cac18e51316c6e5cc3834a664791fdf5bdeb8ea88640c27624f4ac2cebd

SHA512
e3009af49faeee3d8dfc03c89f957691f36dbcf80927c64fc2aaedbb91aa426f98504f118e96cfb6bbd0a53c0d72a877dd2722d889960a72be67471a4f8c9d0d

Download Submit
C:\Windows\mstwain32.exe
Filesize
133KB

MD5
0ddd8e3921b5033d8f7fac0f28ba2ec0

SHA1
8a312948eeec4927a2fa02aea04e6476cbb7a1b2

SHA256
524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac

SHA512
666c8795350833fc843bae1ee6dfaa366dc1abd18657034f8c2aae82295caf52aac62c42cfcd101994412ba32b96abe51baf4d45b63b5844285529329d6dcf77

Download Submit
C:\Windows\mstwain32.exe
Filesize
133KB

MD5
0ddd8e3921b5033d8f7fac0f28ba2ec0

SHA1
8a312948eeec4927a2fa02aea04e6476cbb7a1b2

SHA256
524a4a4cb107389a68a2df3a4b63c40ac1b01996380d912431554c84a3e130ac

SHA512
666c8795350833fc843bae1ee6dfaa366dc1abd18657034f8c2aae82295caf52aac62c42cfcd101994412ba32b96abe51baf4d45b63b5844285529329d6dcf77

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/1212-132-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1212-136-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/4312-133-0x0000000000000000-mapping.dmp

Download
memory/4312-139-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/4312-142-0x0000000002310000-0x000000000231E000-memory.dmp

Filesize
56KB

Download
memory/4312-143-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads