Analysis Overview
SHA256
42a30e607fb699b5ee46ccb50113dd80dbaaae5a1bfe4877b8848a96c60e559d
Threat Level: Known bad
The file 7d25f10b8321bf59dc5dd65e23abacfc was found to be: Known bad.
Malicious Activity Summary
Detect XtremeRAT payload
XtremeRAT
Executes dropped EXE
Loads dropped DLL
UPX packed file
Checks computer location settings
Adds Run key to start application
Suspicious use of SetThreadContext
Program crash
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-28 12:36
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-28 12:36
Reported
2024-01-28 12:39
Platform
win7-20231215-en
Max time kernel
149s
Max time network
123s
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 |
XtremeRAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\systemk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\server.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\upda88 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\upda57.exe\"" | C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2980 set thread context of 3056 | N/A | C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe | C:\Users\Admin\AppData\Local\Temp\systemk.exe |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe
"C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe"
C:\Users\Admin\AppData\Local\Temp\systemk.exe
C:\Users\Admin\AppData\Local\Temp\systemk.exe
C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.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/2980-0-0x0000000074EA0000-0x000000007544B000-memory.dmp
memory/2980-1-0x0000000074EA0000-0x000000007544B000-memory.dmp
memory/2980-2-0x0000000000590000-0x00000000005D0000-memory.dmp
\Users\Admin\AppData\Local\Temp\systemk.exe
| MD5 | d79efb472a22ad75d501317b21e66b5e |
| SHA1 | 24512f54884d3dda2d803457bbd3dcd513356196 |
| SHA256 | 7255b1d1f001b9d9a5177e1f8063bcc824effe3570e6c19508babe12bb73c7d6 |
| SHA512 | 7c5a2f516a727ddeb05f9a7c6565375debb05709ac9b95212fc748cba37a2ab81b7d727636141096e4511679ce140b07b37fdf36cfb47d8d1c8accdd24163ae5 |
memory/3056-10-0x0000000010000000-0x000000001004D000-memory.dmp
memory/3056-11-0x0000000010000000-0x000000001004D000-memory.dmp
memory/3056-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/3056-12-0x0000000010000000-0x000000001004D000-memory.dmp
memory/3056-15-0x0000000010000000-0x000000001004D000-memory.dmp
memory/3056-17-0x0000000000400000-0x0000000000400000-memory.dmp
\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | a00121c2f045a8f12c9a51a9b3872cb5 |
| SHA1 | 5cdec4fc03894fbe452156543f2ec4fd72368ae8 |
| SHA256 | 438d8db46e231e9bd86b469eaaa924924ed69362008a3fc7dd589f4fc105846c |
| SHA512 | 98b947e4cb98085b0fbfae69230b09ea6412773c72edd9e69cea0525d2a524c79965003779e1e7aa9150a5d861e4ac9b2e722de87f4c03a54be2bee898d8c780 |
memory/2980-23-0x0000000010000000-0x000000001004D000-memory.dmp
memory/2980-29-0x0000000010000000-0x000000001004D000-memory.dmp
memory/2896-30-0x0000000010000000-0x000000001004D000-memory.dmp
memory/2980-32-0x0000000074EA0000-0x000000007544B000-memory.dmp
memory/2720-34-0x0000000010000000-0x000000001004D000-memory.dmp
memory/2896-35-0x0000000010000000-0x000000001004D000-memory.dmp
memory/2720-36-0x0000000010000000-0x000000001004D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-28 12:36
Reported
2024-01-28 12:39
Platform
win10v2004-20231215-en
Max time kernel
144s
Max time network
158s
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 |
XtremeRAT
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\systemk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\server.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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\upda88 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\upda57.exe\"" | C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2000 set thread context of 5116 | N/A | C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe | C:\Users\Admin\AppData\Local\Temp\systemk.exe |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\systemk.exe |
| 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 WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe
"C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe"
C:\Users\Admin\AppData\Local\Temp\systemk.exe
C:\Users\Admin\AppData\Local\Temp\systemk.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5116 -ip 5116
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5116 -s 12
C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
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 436 -p 2996 -ip 2996
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 480
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2996 -ip 2996
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 488
Network
| Country | Destination | Domain | Proto |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.234.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.173.189.20.in-addr.arpa | udp |
Files
memory/2000-0-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/2000-2-0x0000000000FB0000-0x0000000000FC0000-memory.dmp
memory/2000-1-0x0000000074640000-0x0000000074BF1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\systemk.exe
| MD5 | d79efb472a22ad75d501317b21e66b5e |
| SHA1 | 24512f54884d3dda2d803457bbd3dcd513356196 |
| SHA256 | 7255b1d1f001b9d9a5177e1f8063bcc824effe3570e6c19508babe12bb73c7d6 |
| SHA512 | 7c5a2f516a727ddeb05f9a7c6565375debb05709ac9b95212fc748cba37a2ab81b7d727636141096e4511679ce140b07b37fdf36cfb47d8d1c8accdd24163ae5 |
memory/5116-5-0x0000000010000000-0x000000001004D000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\server.exe
| MD5 | a00121c2f045a8f12c9a51a9b3872cb5 |
| SHA1 | 5cdec4fc03894fbe452156543f2ec4fd72368ae8 |
| SHA256 | 438d8db46e231e9bd86b469eaaa924924ed69362008a3fc7dd589f4fc105846c |
| SHA512 | 98b947e4cb98085b0fbfae69230b09ea6412773c72edd9e69cea0525d2a524c79965003779e1e7aa9150a5d861e4ac9b2e722de87f4c03a54be2bee898d8c780 |
memory/4104-16-0x0000000010000000-0x000000001004D000-memory.dmp
memory/2000-18-0x0000000074640000-0x0000000074BF1000-memory.dmp
memory/2996-19-0x0000000010000000-0x000000001004D000-memory.dmp
memory/4104-20-0x0000000010000000-0x000000001004D000-memory.dmp
memory/2996-21-0x0000000010000000-0x000000001004D000-memory.dmp
memory/5116-22-0x0000000000400000-0x0000000000400000-memory.dmp