Analysis Overview
SHA256
42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a
Threat Level: Known bad
The file 42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a was found to be: Known bad.
Malicious Activity Summary
Imminent RAT
Executes dropped EXE
Drops startup file
Checks computer location settings
Adds Run key to start application
Drops desktop.ini file(s)
Suspicious use of SetThreadContext
Drops file in Windows directory
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-07-08 01:48
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-07-08 01:48
Reported
2022-07-08 03:54
Platform
win7-20220414-en
Max time kernel
119s
Max time network
47s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new | C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
| File created | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new | C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.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\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe
"C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe"
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\System32\explorer.exe" /c select, C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe
C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe"
Network
Files
memory/972-54-0x00000000753B1000-0x00000000753B3000-memory.dmp
memory/972-55-0x00000000748C0000-0x0000000074E6B000-memory.dmp
memory/972-56-0x00000000748C0000-0x0000000074E6B000-memory.dmp
memory/1996-57-0x0000000000000000-mapping.dmp
memory/1996-59-0x0000000071B01000-0x0000000071B03000-memory.dmp
memory/596-60-0x000007FEFBDA1000-0x000007FEFBDA3000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe
| MD5 | 8b683771c162d0f751ec0eed59ab8471 |
| SHA1 | 749e230bfaaab4e79aeab3ba5ca8e6cdc7bde183 |
| SHA256 | 42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a |
| SHA512 | bec4cf42857a7a217ec4f4e4cc99905eb9e69a560f6945869fa421b5cfcb7b4b4442385ff3ab758bced5db53f5472d1984a8e23a85cc28e54c8d8cdcfdfe78d2 |
memory/584-62-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe
| MD5 | 8b683771c162d0f751ec0eed59ab8471 |
| SHA1 | 749e230bfaaab4e79aeab3ba5ca8e6cdc7bde183 |
| SHA256 | 42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a |
| SHA512 | bec4cf42857a7a217ec4f4e4cc99905eb9e69a560f6945869fa421b5cfcb7b4b4442385ff3ab758bced5db53f5472d1984a8e23a85cc28e54c8d8cdcfdfe78d2 |
C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch
| MD5 | e34e8764306ec5f0f9fcdb6172d614ad |
| SHA1 | 05ad1be45ba28bddff04743e5fc7739e654da1a4 |
| SHA256 | bf3f47e93dcad3941f791c4f375196aa89335299da2d58379d2ed0f015c96186 |
| SHA512 | 6eff41a196b803e36afbdd56412c895047b3ca08bd6771d0d711fa1fcaa693ee1720e54f0cea7e2286e2f3e9dab98d7e427fde8aa69514ea33f393d044112bbe |
memory/584-66-0x00000000748C0000-0x0000000074E6B000-memory.dmp
memory/972-67-0x00000000748C0000-0x0000000074E6B000-memory.dmp
memory/584-68-0x00000000748C0000-0x0000000074E6B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-07-08 01:48
Reported
2022-07-08 03:51
Platform
win10v2004-20220414-en
Max time kernel
150s
Max time network
155s
Command Line
Signatures
Imminent RAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Defender = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\Startup\\llswni.exe -boot" | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File created | C:\Windows\assembly\Desktop.ini | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4980 set thread context of 4488 | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | N/A |
| File opened for modification | C:\Windows\assembly | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe | N/A |
| File created | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new | C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
| File created | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new | C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
| File created | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.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\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe | N/A |
| Token: 33 | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe
"C:\Users\Admin\AppData\Local\Temp\42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a.exe"
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\System32\explorer.exe" /c select, C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe
C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"
C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
Network
| Country | Destination | Domain | Proto |
| US | 20.189.173.10:443 | tcp | |
| US | 52.109.8.19:443 | tcp | |
| DE | 67.24.27.254:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| BE | 8.238.110.126:80 | tcp | |
| US | 8.8.8.8:53 | mlhdns.phatbois.me | udp |
| US | 8.8.8.8:53 | mlhdns.phatbois.me | udp |
| US | 8.8.8.8:53 | mlhdns.phatbois.me | udp |
| US | 8.8.8.8:53 | mlhdns.phatbois.me | udp |
Files
memory/2184-130-0x0000000074660000-0x0000000074C11000-memory.dmp
memory/2184-131-0x0000000074660000-0x0000000074C11000-memory.dmp
memory/1004-132-0x0000000000000000-mapping.dmp
memory/2184-133-0x0000000074660000-0x0000000074C11000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe
| MD5 | 8b683771c162d0f751ec0eed59ab8471 |
| SHA1 | 749e230bfaaab4e79aeab3ba5ca8e6cdc7bde183 |
| SHA256 | 42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a |
| SHA512 | bec4cf42857a7a217ec4f4e4cc99905eb9e69a560f6945869fa421b5cfcb7b4b4442385ff3ab758bced5db53f5472d1984a8e23a85cc28e54c8d8cdcfdfe78d2 |
memory/4980-135-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\llswni.exe
| MD5 | 8b683771c162d0f751ec0eed59ab8471 |
| SHA1 | 749e230bfaaab4e79aeab3ba5ca8e6cdc7bde183 |
| SHA256 | 42aa8ecf0677adfb5dcdbcb7a19485dcbe7a2c2749fc5dda541d2157cdd2be3a |
| SHA512 | bec4cf42857a7a217ec4f4e4cc99905eb9e69a560f6945869fa421b5cfcb7b4b4442385ff3ab758bced5db53f5472d1984a8e23a85cc28e54c8d8cdcfdfe78d2 |
C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch
| MD5 | 7036eb16911c2cec76f7edfbe4c59d67 |
| SHA1 | ed3aa528de2da2e8844c028d38d17624f4da917f |
| SHA256 | 5653cfc26cb99bbf9b0ee8ef4ab6ec18da9f5a2492e257cf0ae6215ecd7e3593 |
| SHA512 | fe969ac05997ca9d1697fa02bbf5022ce7a41a6a8ce4f0b440f9bf8287162095d405f21df1941173858cd0591de97504ec6de312a941ec5106714bbf28fb782e |
C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch
| MD5 | 7036eb16911c2cec76f7edfbe4c59d67 |
| SHA1 | ed3aa528de2da2e8844c028d38d17624f4da917f |
| SHA256 | 5653cfc26cb99bbf9b0ee8ef4ab6ec18da9f5a2492e257cf0ae6215ecd7e3593 |
| SHA512 | fe969ac05997ca9d1697fa02bbf5022ce7a41a6a8ce4f0b440f9bf8287162095d405f21df1941173858cd0591de97504ec6de312a941ec5106714bbf28fb782e |
memory/4980-139-0x00000000745E0000-0x0000000074B91000-memory.dmp
memory/4980-140-0x00000000745E0000-0x0000000074B91000-memory.dmp
memory/4488-141-0x0000000000000000-mapping.dmp
memory/4488-142-0x0000000000400000-0x0000000000456000-memory.dmp
memory/4980-143-0x00000000745E0000-0x0000000074B91000-memory.dmp
memory/4488-144-0x00000000745E0000-0x0000000074B91000-memory.dmp
memory/4488-145-0x00000000745E0000-0x0000000074B91000-memory.dmp