Analysis Overview
SHA256
4b2f8f49063ee9b973867f0d1e72923dd72df98c2c0b607ce619bf71a9810eb6
Threat Level: Known bad
The file 8cda651a2958930a5c233d841940c2d9 was found to be: Known bad.
Malicious Activity Summary
Detect XtremeRAT payload
XtremeRAT
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
UPX packed file
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-03 16:55
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-03 16:55
Reported
2024-02-03 16:58
Platform
win7-20231129-en
Max time kernel
150s
Max time network
118s
Command Line
Signatures
Detect XtremeRAT payload
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
XtremeRAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fud.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fud.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fud.exe | N/A |
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2624 set thread context of 2612 | N/A | C:\Users\Admin\AppData\Local\Temp\fud.exe | C:\Users\Admin\AppData\Local\Temp\fud.exe |
Enumerates physical storage devices
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\DllHost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fud.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe
"C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe"
C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
C:\Users\Admin\AppData\Local\Temp\fud.exe
"C:\Users\Admin\AppData\Local\Temp\fud.exe"
C:\Users\Admin\AppData\Local\Temp\fud.exe
C:\Users\Admin\AppData\Local\Temp\fud.exe
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
Network
Files
memory/2552-3-0x00000000024F0000-0x00000000024F2000-memory.dmp
memory/3048-4-0x0000000000230000-0x0000000000232000-memory.dmp
memory/3048-6-0x0000000000630000-0x0000000000631000-memory.dmp
\Users\Admin\AppData\Local\Temp\fud.exe
| MD5 | 1a54b5e4a7b905cf7c9831c1eaf5106a |
| SHA1 | a342422b2823a81fa03cc277814e4c9b9dbbc52d |
| SHA256 | 229644c65d6c868140e9678122320c9df7db84e5fe74c715d61bd454f7bd7189 |
| SHA512 | 85772b196917a97a0af2a2ab7c7438ac77bc1862a7ebbd0e5302adb54c8b2a003ac116b7d251d9eff53b0956522026492008d606b2e3be7f479fdcbfb02c449b |
memory/2552-16-0x0000000000860000-0x0000000000871000-memory.dmp
memory/2552-14-0x0000000000860000-0x0000000000871000-memory.dmp
memory/2624-18-0x0000000000400000-0x0000000000411000-memory.dmp
memory/2612-22-0x0000000010000000-0x000000001004B000-memory.dmp
memory/2624-26-0x0000000000400000-0x0000000000411000-memory.dmp
memory/2612-28-0x0000000010000000-0x000000001004B000-memory.dmp
memory/2612-27-0x0000000000400000-0x0000000000411000-memory.dmp
memory/2624-23-0x0000000000230000-0x0000000000241000-memory.dmp
memory/2612-29-0x0000000010000000-0x000000001004B000-memory.dmp
memory/2612-30-0x0000000010000000-0x000000001004B000-memory.dmp
memory/2716-31-0x0000000010000000-0x000000001004B000-memory.dmp
memory/2716-33-0x0000000010000000-0x000000001004B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\genzo-wakabayashi_103049.jpg
| MD5 | 89625e729b6bf38f1457a4dc86652f0a |
| SHA1 | 3754861a553de525932a86ef676b3d692584d94d |
| SHA256 | 94ac6e8646448e08f2d4ded91d45a3a7bfb87623ac0c3d2411f5df7a9ef40b0f |
| SHA512 | 0cc525d48bdac79d3c7e109d37e398b265d74977f2fc5161453ffc77ad8d1375d87ff4ec9bf291cf4e7db7db685fb9a7cd98edb60b633034e90671b892437dfe |
memory/2612-35-0x0000000010000000-0x000000001004B000-memory.dmp
memory/3048-36-0x0000000000630000-0x0000000000631000-memory.dmp
memory/2716-37-0x0000000010000000-0x000000001004B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-03 16:55
Reported
2024-02-03 16:58
Platform
win10v2004-20231215-en
Max time kernel
92s
Max time network
149s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fud.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fud.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3336 wrote to memory of 1944 | N/A | C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe | C:\Users\Admin\AppData\Local\Temp\fud.exe |
| PID 3336 wrote to memory of 1944 | N/A | C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe | C:\Users\Admin\AppData\Local\Temp\fud.exe |
| PID 3336 wrote to memory of 1944 | N/A | C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe | C:\Users\Admin\AppData\Local\Temp\fud.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe
"C:\Users\Admin\AppData\Local\Temp\8cda651a2958930a5c233d841940c2d9.exe"
C:\Users\Admin\AppData\Local\Temp\fud.exe
"C:\Users\Admin\AppData\Local\Temp\fud.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 192.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.234.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 204.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.178.17.96.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\fud.exe
| MD5 | 09a7c82b4f0d627a1d10fca9fba243cb |
| SHA1 | 356c293b36163af675f87509d9bc29307c9923ed |
| SHA256 | 571a13dcbf30aaf426558b92d677fc5a8105e10dca93f9137fcf519acc18154e |
| SHA512 | 24a04be1f26c7f88a8019e0cfc5a8753bbb1dea7684f37a243e2b7ae3384d023435309fccf9e4b544d272ddc53f93162068b5ed29bd8990f3aab865d7c90dfe6 |
C:\Users\Admin\AppData\Local\Temp\fud.exe
| MD5 | 1a54b5e4a7b905cf7c9831c1eaf5106a |
| SHA1 | a342422b2823a81fa03cc277814e4c9b9dbbc52d |
| SHA256 | 229644c65d6c868140e9678122320c9df7db84e5fe74c715d61bd454f7bd7189 |
| SHA512 | 85772b196917a97a0af2a2ab7c7438ac77bc1862a7ebbd0e5302adb54c8b2a003ac116b7d251d9eff53b0956522026492008d606b2e3be7f479fdcbfb02c449b |
memory/1944-14-0x0000000000400000-0x0000000000411000-memory.dmp
memory/1944-17-0x0000000000400000-0x0000000000411000-memory.dmp