Analysis Overview
SHA256
910e82aa76f384acecc91792b27684ae5b58e597302577b9c3ba3accb376c73f
Threat Level: Known bad
The file 840d4c2cd9b991ea7898459003848c84 was found to be: Known bad.
Malicious Activity Summary
Detect XtremeRAT payload
XtremeRAT
Loads dropped DLL
Drops file in System32 directory
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Program crash
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-31 09:25
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-31 09:25
Reported
2024-01-31 09:27
Platform
win7-20231215-en
Max time kernel
149s
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
XtremeRAT
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\VB6FR.DLL | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
| File created | C:\Windows\SysWOW64\VB6FR.DLL | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2196 set thread context of 1288 | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe |
| PID 2196 set thread context of 0 | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
| PID 2196 set thread context of 0 | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
| PID 2196 set thread context of 0 | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.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\840d4c2cd9b991ea7898459003848c84.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe
"C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe"
C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe
"C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
Network
Files
\Windows\SysWOW64\VB6FR.DLL
| MD5 | c845380c64f8db0538eb4af4689ec2f7 |
| SHA1 | 0e9626ab09a8a263bd00484d705be3c2ca647612 |
| SHA256 | a8254b40b68e425ad269b56940ccce0deae1432ed6e86318984cffc13dd08cf6 |
| SHA512 | 8e693e21d2f1fd26112c209cda622c2604036cf36af39818a5cb4d976e6cd273802468fb55abc1a5721f22ba418da491ec63694de5485b19f9f1028447817124 |
memory/2196-3-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1288-7-0x0000000010000000-0x0000000010047000-memory.dmp
memory/1288-6-0x0000000010000000-0x0000000010047000-memory.dmp
memory/1288-8-0x0000000010000000-0x0000000010047000-memory.dmp
memory/1288-9-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1288-11-0x0000000010000000-0x0000000010047000-memory.dmp
memory/2196-10-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2800-12-0x0000000010000000-0x0000000010047000-memory.dmp
memory/2800-14-0x0000000010000000-0x0000000010047000-memory.dmp
memory/1288-15-0x0000000010000000-0x0000000010047000-memory.dmp
memory/2800-16-0x0000000010000000-0x0000000010047000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-31 09:25
Reported
2024-01-31 09:27
Platform
win10v2004-20231215-en
Max time kernel
135s
Max time network
145s
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
XtremeRAT
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\VB6FR.DLL | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\VB6FR.DLL | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2004 set thread context of 968 | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe |
| PID 2004 set thread context of 0 | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
| PID 2004 set thread context of 0 | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
| PID 2004 set thread context of 0 | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\svchost.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\svchost.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe
"C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe"
C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe
"C:\Users\Admin\AppData\Local\Temp\840d4c2cd9b991ea7898459003848c84.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2244 -ip 2244
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2244 -ip 2244
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 492
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 484
Network
| Country | Destination | Domain | Proto |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 187.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
Files
memory/2004-0-0x0000000000400000-0x0000000000462000-memory.dmp
C:\Windows\SysWOW64\VB6FR.DLL
| MD5 | c845380c64f8db0538eb4af4689ec2f7 |
| SHA1 | 0e9626ab09a8a263bd00484d705be3c2ca647612 |
| SHA256 | a8254b40b68e425ad269b56940ccce0deae1432ed6e86318984cffc13dd08cf6 |
| SHA512 | 8e693e21d2f1fd26112c209cda622c2604036cf36af39818a5cb4d976e6cd273802468fb55abc1a5721f22ba418da491ec63694de5485b19f9f1028447817124 |
memory/968-7-0x0000000010000000-0x0000000010047000-memory.dmp
memory/968-8-0x0000000010000000-0x0000000010047000-memory.dmp
memory/968-9-0x0000000010000000-0x0000000010047000-memory.dmp
memory/2004-11-0x0000000000400000-0x0000000000462000-memory.dmp
memory/968-10-0x0000000010000000-0x0000000010047000-memory.dmp
memory/2244-12-0x0000000010000000-0x0000000010047000-memory.dmp
memory/968-13-0x0000000010000000-0x0000000010047000-memory.dmp
memory/2244-14-0x0000000010000000-0x0000000010047000-memory.dmp