Analysis Overview
SHA256
67398d52c60aeb43be4a9923d154d0347e7250299e13c786aae9dc3cf23af7b1
Threat Level: Known bad
The file 9018af484cddf39dd73bd87095602d52 was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
UAC bypass
ModiLoader Second Stage
UPX packed file
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Checks whether UAC is enabled
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of SetWindowsHookEx
System policy modification
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-04 20:36
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-04 20:36
Reported
2024-02-04 20:38
Platform
win7-20231215-en
Max time kernel
145s
Max time network
150s
Command Line
Signatures
ModiLoader, DBatLoader
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mstwain32.exe | N/A |
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" | C:\Windows\mstwain32.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Windows\mstwain32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mstwain32.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\ntdtcstp.dll | C:\Windows\mstwain32.exe | N/A |
| File created | C:\Windows\cmsetac.dll | C:\Windows\mstwain32.exe | N/A |
| File created | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | N/A |
| File opened for modification | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\mstwain32.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\mstwain32.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1752 wrote to memory of 1876 | N/A | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | C:\Windows\mstwain32.exe |
| PID 1752 wrote to memory of 1876 | N/A | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | C:\Windows\mstwain32.exe |
| PID 1752 wrote to memory of 1876 | N/A | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | C:\Windows\mstwain32.exe |
| PID 1752 wrote to memory of 1876 | N/A | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | C:\Windows\mstwain32.exe |
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mstwain32.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe
"C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe"
C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe"
Network
| Country | Destination | Domain | Proto |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp |
Files
memory/1752-0-0x0000000000400000-0x0000000000450000-memory.dmp
C:\Windows\mstwain32.exe
| MD5 | 9018af484cddf39dd73bd87095602d52 |
| SHA1 | dea4559ee290fe3371a4ced25e7d3fd0c8c7f34b |
| SHA256 | 67398d52c60aeb43be4a9923d154d0347e7250299e13c786aae9dc3cf23af7b1 |
| SHA512 | 230ea827ded8af9fb394acfc49b071a2179ea3cdbe0cef932009c530947b77ecf4097464b9790d421568ef28374e2d23a1fb72a0a75a339ad7f1083b3ecb6b22 |
memory/1752-10-0x0000000002B30000-0x0000000002B80000-memory.dmp
memory/1752-8-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1752-7-0x00000000003E0000-0x00000000003F0000-memory.dmp
memory/1876-11-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-15-0x00000000003E0000-0x00000000003E1000-memory.dmp
memory/1876-16-0x00000000025F0000-0x00000000025FE000-memory.dmp
memory/1876-18-0x0000000076330000-0x0000000076420000-memory.dmp
memory/1876-19-0x0000000074A40000-0x0000000074A54000-memory.dmp
memory/1876-20-0x0000000002420000-0x0000000002421000-memory.dmp
memory/1876-21-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-22-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-23-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-24-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-25-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-26-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-27-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-28-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-29-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-30-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-31-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-32-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-33-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-34-0x0000000000400000-0x0000000000450000-memory.dmp
memory/1876-35-0x0000000000400000-0x0000000000450000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-04 20:36
Reported
2024-02-04 20:39
Platform
win10v2004-20231215-en
Max time kernel
148s
Max time network
155s
Command Line
Signatures
ModiLoader, DBatLoader
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mstwain32.exe | N/A |
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" | C:\Windows\mstwain32.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Windows\mstwain32.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mstwain32.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | N/A |
| File created | C:\Windows\ntdtcstp.dll | C:\Windows\mstwain32.exe | N/A |
| File created | C:\Windows\cmsetac.dll | C:\Windows\mstwain32.exe | N/A |
| File created | C:\Windows\mstwain32.exe | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\mstwain32.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\mstwain32.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
| N/A | N/A | C:\Windows\mstwain32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 5064 wrote to memory of 876 | N/A | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | C:\Windows\mstwain32.exe |
| PID 5064 wrote to memory of 876 | N/A | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | C:\Windows\mstwain32.exe |
| PID 5064 wrote to memory of 876 | N/A | C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe | C:\Windows\mstwain32.exe |
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Windows\mstwain32.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe
"C:\Users\Admin\AppData\Local\Temp\9018af484cddf39dd73bd87095602d52.exe"
C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe"
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| BR | 187.16.244.243:15963 | tcp | |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| BR | 187.16.244.243:15963 | tcp | |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| BR | 187.16.244.243:15963 | tcp | |
| US | 8.8.8.8:53 | 23.160.77.104.in-addr.arpa | udp |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| US | 8.8.8.8:53 | 150.1.37.23.in-addr.arpa | udp |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| US | 8.8.8.8:53 | 200.178.17.96.in-addr.arpa | udp |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp | |
| US | 8.8.8.8:53 | 27.73.42.20.in-addr.arpa | udp |
| BR | 187.16.244.243:15963 | tcp | |
| BR | 187.16.244.243:15963 | tcp |
Files
memory/5064-0-0x0000000000400000-0x0000000000450000-memory.dmp
C:\Windows\mstwain32.exe
| MD5 | 9018af484cddf39dd73bd87095602d52 |
| SHA1 | dea4559ee290fe3371a4ced25e7d3fd0c8c7f34b |
| SHA256 | 67398d52c60aeb43be4a9923d154d0347e7250299e13c786aae9dc3cf23af7b1 |
| SHA512 | 230ea827ded8af9fb394acfc49b071a2179ea3cdbe0cef932009c530947b77ecf4097464b9790d421568ef28374e2d23a1fb72a0a75a339ad7f1083b3ecb6b22 |
memory/5064-11-0x0000000000400000-0x0000000000450000-memory.dmp
C:\Windows\ntdtcstp.dll
| MD5 | 67587e25a971a141628d7f07bd40ffa0 |
| SHA1 | 76fcd014539a3bb247cc0b761225f68bd6055f6b |
| SHA256 | e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378 |
| SHA512 | 6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350 |
memory/876-17-0x0000000000920000-0x0000000000921000-memory.dmp
C:\Windows\cmsetac.dll
| MD5 | 965df136f0cea9286441f242d3e36624 |
| SHA1 | 688ff39d76aaa43cdd44aab17ebf16a764648ad1 |
| SHA256 | 72bef3c45889a83ef384ddc171f4d47f994042bd8380109c6ef3bb7f7263050a |
| SHA512 | a19387c4501457fddd84129414054c78d01ffed5342f7bcfc90cfaf2e966aaac0b2124a2b6e23cd03c58f76e8b1bd1ed38d9cc08eff7d9fa6ee56252a8f51205 |
memory/876-21-0x00000000022A0000-0x00000000022AE000-memory.dmp
memory/876-24-0x0000000002250000-0x0000000002251000-memory.dmp
memory/876-25-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-26-0x0000000000970000-0x0000000000978000-memory.dmp
memory/876-27-0x00000000022A0000-0x00000000022AE000-memory.dmp
memory/876-28-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-31-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-32-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-35-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-38-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-41-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-44-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-47-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-50-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-53-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-56-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-59-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-62-0x0000000000400000-0x0000000000450000-memory.dmp
memory/876-65-0x0000000000400000-0x0000000000450000-memory.dmp