Analysis Overview
SHA256
1b77cac1dad528685fb7f2f19ddff24e6080a0024039671db5774b4a7ffbf68c
Threat Level: Known bad
The file a2c6d851a502187a0146351ba636c1d1 was found to be: Known bad.
Malicious Activity Summary
Detect Lumma Stealer payload V4
Lumma Stealer
Executes dropped EXE
Loads dropped DLL
Drops file in System32 directory
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2024-02-24 21:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-24 21:22
Reported
2024-02-24 21:25
Platform
win7-20240221-en
Max time kernel
148s
Max time network
124s
Command Line
Signatures
Detect Lumma Stealer payload V4
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Lumma Stealer
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\winscrne.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\winscrne.exe | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe\winscrne.exe | C:\Windows\SysWOW64\winscrne.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1244 wrote to memory of 1668 | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | C:\Windows\SysWOW64\winscrne.exe |
| PID 1244 wrote to memory of 1668 | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | C:\Windows\SysWOW64\winscrne.exe |
| PID 1244 wrote to memory of 1668 | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | C:\Windows\SysWOW64\winscrne.exe |
| PID 1244 wrote to memory of 1668 | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | C:\Windows\SysWOW64\winscrne.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe
"C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe"
C:\Windows\SysWOW64\winscrne.exe
C:\Windows\system32\winscrne.exe
Network
Files
memory/1244-0-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/1244-1-0x00000000021F0000-0x0000000002300000-memory.dmp
\Windows\SysWOW64\winscrne.exe
| MD5 | a2c6d851a502187a0146351ba636c1d1 |
| SHA1 | 1a865903b5e20020083ef5d6dc99292b58024e5c |
| SHA256 | 1b77cac1dad528685fb7f2f19ddff24e6080a0024039671db5774b4a7ffbf68c |
| SHA512 | b79432127887a718f8707e5e767296b11f2cc8ff55da513f3bcf5c93b79f4bea9d9e5135c2d024ac05ac3fb7543133a07c22e270ed00761a0955f6b0374b4200 |
memory/1244-12-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/1244-11-0x0000000002CC0000-0x0000000003088000-memory.dmp
memory/1668-13-0x0000000002140000-0x0000000002250000-memory.dmp
memory/1244-17-0x0000000002CC0000-0x0000000003088000-memory.dmp
memory/1668-18-0x0000000000400000-0x00000000007C8000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-24 21:22
Reported
2024-02-24 21:25
Platform
win10v2004-20240221-en
Max time kernel
146s
Max time network
152s
Command Line
Signatures
Detect Lumma Stealer payload V4
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Lumma Stealer
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\winscrne.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\winscrne.exe | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | N/A |
| File created | C:\Windows\SysWOW64\winscrne.exe | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3988 wrote to memory of 1080 | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | C:\Windows\SysWOW64\winscrne.exe |
| PID 3988 wrote to memory of 1080 | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | C:\Windows\SysWOW64\winscrne.exe |
| PID 3988 wrote to memory of 1080 | N/A | C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe | C:\Windows\SysWOW64\winscrne.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe
"C:\Users\Admin\AppData\Local\Temp\a2c6d851a502187a0146351ba636c1d1.exe"
C:\Windows\SysWOW64\winscrne.exe
C:\Windows\system32\winscrne.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.173.189.20.in-addr.arpa | udp |
Files
memory/3988-0-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/3988-1-0x0000000002730000-0x0000000002820000-memory.dmp
C:\Windows\SysWOW64\winscrne.exe
| MD5 | a2c6d851a502187a0146351ba636c1d1 |
| SHA1 | 1a865903b5e20020083ef5d6dc99292b58024e5c |
| SHA256 | 1b77cac1dad528685fb7f2f19ddff24e6080a0024039671db5774b4a7ffbf68c |
| SHA512 | b79432127887a718f8707e5e767296b11f2cc8ff55da513f3bcf5c93b79f4bea9d9e5135c2d024ac05ac3fb7543133a07c22e270ed00761a0955f6b0374b4200 |
memory/1080-7-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/1080-9-0x0000000002720000-0x0000000002810000-memory.dmp
memory/3988-8-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/3988-10-0x0000000002730000-0x0000000002820000-memory.dmp
memory/1080-13-0x0000000000400000-0x00000000007C8000-memory.dmp