Analysis Overview
SHA256
7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922
Threat Level: Known bad
The file 7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922 was found to be: Known bad.
Malicious Activity Summary
Detect XtremeRAT payload
XtremeRAT
Executes dropped EXE
UPX packed file
Modifies Installed Components in the registry
Checks computer location settings
Drops desktop.ini file(s)
Adds Run key to start application
Drops file in Windows directory
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-11-23 20:23
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-11-23 20:23
Reported
2022-11-23 23:21
Platform
win7-20221111-en
Max time kernel
211s
Max time network
282s
Command Line
Signatures
Detect XtremeRAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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XtremeRAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
Modifies Installed Components in the registry
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{0VX3O085-5WIK-A1Q4-ALGM-730EJ4851YA0} | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{0VX3O085-5WIK-A1Q4-ALGM-730EJ4851YA0}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{0VX3O085-5WIK-A1Q4-ALGM-730EJ4851YA0} | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{0VX3O085-5WIK-A1Q4-ALGM-730EJ4851YA0}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" | C:\Windows\SysWOW64\svchost.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 |
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| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\InstallDir\Server.exe | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| File created | C:\Windows\InstallDir\Server.exe | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| File opened for modification | C:\Windows\InstallDir\ | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe
"C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe"
C:\Users\Admin\AppData\Local\Temp\taskgen.exe
"C:\Users\Admin\AppData\Local\Temp\taskgen.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\svchost.exe
svchost.exe
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
Files
memory/1276-55-0x000007FEF2DD0000-0x000007FEF3E66000-memory.dmp
memory/1276-56-0x0000000000B06000-0x0000000000B25000-memory.dmp
memory/896-57-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\taskgen.exe
| MD5 | ff53c2e05032c76a8457f2cde3ba1d3a |
| SHA1 | 15acfd27138b871a866f7aa5ffdfc6357d865cc1 |
| SHA256 | d2eaf2bda7a45563939d7ead777666263d1f9fcb94c5d3cf970aa90bad498c88 |
| SHA512 | c2bd5bb00fd3a1da735e1e598e2a7b1e7d1fe73e3911fa3cfa53f27d55d49df5ad947e37a7497eff252803c138b5d4c5471b48bf930a8b69e283ef222b2393fe |
memory/896-59-0x0000000075E81000-0x0000000075E83000-memory.dmp
memory/1276-60-0x0000000000B06000-0x0000000000B25000-memory.dmp
memory/896-61-0x0000000000C80000-0x0000000000C96000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\taskgen.exe
| MD5 | ff53c2e05032c76a8457f2cde3ba1d3a |
| SHA1 | 15acfd27138b871a866f7aa5ffdfc6357d865cc1 |
| SHA256 | d2eaf2bda7a45563939d7ead777666263d1f9fcb94c5d3cf970aa90bad498c88 |
| SHA512 | c2bd5bb00fd3a1da735e1e598e2a7b1e7d1fe73e3911fa3cfa53f27d55d49df5ad947e37a7497eff252803c138b5d4c5471b48bf930a8b69e283ef222b2393fe |
memory/896-63-0x0000000000C80000-0x0000000000C96000-memory.dmp
memory/1356-66-0x0000000000000000-mapping.dmp
memory/1356-64-0x0000000000C80000-0x0000000000C96000-memory.dmp
C:\Windows\InstallDir\Server.exe
| MD5 | ff53c2e05032c76a8457f2cde3ba1d3a |
| SHA1 | 15acfd27138b871a866f7aa5ffdfc6357d865cc1 |
| SHA256 | d2eaf2bda7a45563939d7ead777666263d1f9fcb94c5d3cf970aa90bad498c88 |
| SHA512 | c2bd5bb00fd3a1da735e1e598e2a7b1e7d1fe73e3911fa3cfa53f27d55d49df5ad947e37a7497eff252803c138b5d4c5471b48bf930a8b69e283ef222b2393fe |
memory/1356-68-0x0000000000C80000-0x0000000000C96000-memory.dmp
memory/1448-72-0x0000000000000000-mapping.dmp
memory/1448-74-0x0000000000C80000-0x0000000000C96000-memory.dmp
memory/896-75-0x0000000000C80000-0x0000000000C96000-memory.dmp
memory/1448-76-0x0000000000C80000-0x0000000000C96000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-11-23 20:23
Reported
2022-11-23 23:20
Platform
win10v2004-20221111-en
Max time kernel
174s
Max time network
180s
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\taskgen.exe | N/A |
Modifies Installed Components in the registry
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{0VX3O085-5WIK-A1Q4-ALGM-730EJ4851YA0} | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{0VX3O085-5WIK-A1Q4-ALGM-730EJ4851YA0}\StubPath = "C:\\Windows\\InstallDir\\Server.exe restart" | C:\Users\Admin\AppData\Local\Temp\taskgen.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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\InstallDir\\Server.exe" | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\InstallDir\\Server.exe" | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\InstallDir\Server.exe | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| File created | C:\Windows\InstallDir\Server.exe | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| File opened for modification | C:\Windows\InstallDir\ | C:\Users\Admin\AppData\Local\Temp\taskgen.exe | N/A |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe
"C:\Users\Admin\AppData\Local\Temp\7b6fea8906a1311e38bafb8e37f92ee5a149f63db64abcdbb4b1e590d3655922.exe"
C:\Users\Admin\AppData\Local\Temp\taskgen.exe
"C:\Users\Admin\AppData\Local\Temp\taskgen.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\svchost.exe
svchost.exe
Network
| Country | Destination | Domain | Proto |
| N/A | 104.109.143.76:443 | tcp | |
| N/A | 104.109.143.76:443 | tcp | |
| N/A | 104.109.143.76:443 | tcp | |
| N/A | 104.109.143.76:443 | tcp | |
| N/A | 8.238.20.126:80 | tcp | |
| N/A | 52.109.8.86:443 | tcp | |
| N/A | 72.21.91.29:80 | tcp | |
| N/A | 104.80.225.205:443 | tcp | |
| N/A | 51.132.193.105:443 | tcp | |
| N/A | 72.21.91.29:80 | tcp | |
| N/A | 8.238.23.254:80 | tcp | |
| N/A | 8.238.23.254:80 | tcp | |
| N/A | 8.238.23.254:80 | tcp | |
| N/A | 20.224.254.73:443 | tcp | |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 104.109.143.76:443 | tcp | |
| N/A | 52.242.97.97:443 | tcp | |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 20.31.106.135:443 | tcp | |
| N/A | 20.31.106.135:443 | tcp | |
| N/A | 20.31.106.135:443 | tcp | |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | 176.122.125.40.in-addr.arpa | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.8.8.8:53 | yocymusic.zapto.org | udp |
| N/A | 8.247.210.254:80 | tcp |
Files
memory/1504-132-0x00007FFAEE0B0000-0x00007FFAEEAE6000-memory.dmp
memory/1504-133-0x00000000013C9000-0x00000000013CF000-memory.dmp
memory/1504-134-0x00000000013C9000-0x00000000013CF000-memory.dmp
memory/1504-135-0x000000001F400000-0x000000001F404000-memory.dmp
memory/1504-136-0x000000001F404000-0x000000001F407000-memory.dmp
memory/1504-137-0x000000001F407000-0x000000001F40C000-memory.dmp
memory/1504-138-0x000000001F40C000-0x000000001F411000-memory.dmp
memory/1504-139-0x000000001F400000-0x000000001F404000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\taskgen.exe
| MD5 | ff53c2e05032c76a8457f2cde3ba1d3a |
| SHA1 | 15acfd27138b871a866f7aa5ffdfc6357d865cc1 |
| SHA256 | d2eaf2bda7a45563939d7ead777666263d1f9fcb94c5d3cf970aa90bad498c88 |
| SHA512 | c2bd5bb00fd3a1da735e1e598e2a7b1e7d1fe73e3911fa3cfa53f27d55d49df5ad947e37a7497eff252803c138b5d4c5471b48bf930a8b69e283ef222b2393fe |
memory/4756-140-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\taskgen.exe
| MD5 | ff53c2e05032c76a8457f2cde3ba1d3a |
| SHA1 | 15acfd27138b871a866f7aa5ffdfc6357d865cc1 |
| SHA256 | d2eaf2bda7a45563939d7ead777666263d1f9fcb94c5d3cf970aa90bad498c88 |
| SHA512 | c2bd5bb00fd3a1da735e1e598e2a7b1e7d1fe73e3911fa3cfa53f27d55d49df5ad947e37a7497eff252803c138b5d4c5471b48bf930a8b69e283ef222b2393fe |
memory/4756-143-0x0000000000C80000-0x0000000000C96000-memory.dmp
memory/1504-144-0x00000000013C9000-0x00000000013CF000-memory.dmp
memory/1504-145-0x000000001F404000-0x000000001F407000-memory.dmp
memory/1504-147-0x000000001F40C000-0x000000001F411000-memory.dmp
memory/1504-146-0x000000001F407000-0x000000001F40C000-memory.dmp
memory/2472-148-0x0000000000000000-mapping.dmp
memory/2472-149-0x0000000000C80000-0x0000000000C96000-memory.dmp
memory/4756-150-0x0000000000C80000-0x0000000000C96000-memory.dmp
memory/2472-151-0x0000000000C80000-0x0000000000C96000-memory.dmp