Analysis Overview
SHA256
b85d7c34416d1790525a95f190a2ede356e611659c1199c31de24c2e1c10171e
Threat Level: Known bad
The file fnfnayeemsirmod.exe was found to be: Known bad.
Malicious Activity Summary
XenorRat
Xenorat family
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Scheduled Task/Job: Scheduled Task
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-13 13:31
Signatures
Xenorat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-13 13:31
Reported
2024-08-13 13:33
Platform
win7-20240729-en
Max time kernel
148s
Max time network
17s
Command Line
Signatures
XenorRat
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe
"C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe"
C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe
"C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /Create /TN "macchanger" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6567.tmp" /F
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp |
Files
memory/1720-0-0x0000000074B6E000-0x0000000074B6F000-memory.dmp
memory/1720-1-0x00000000008A0000-0x00000000008B0000-memory.dmp
C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe
| MD5 | b882799bf2bfee26b5f7c11dc6788134 |
| SHA1 | 6e7550054253349e498b5399ba8539036adb2e1f |
| SHA256 | b85d7c34416d1790525a95f190a2ede356e611659c1199c31de24c2e1c10171e |
| SHA512 | 5f918b654a663d7eec78fc71d48f3bbf91ffca8538f2a9a0f3f172f35cfa93af98f690edb77a44d2c8f8dcadcbf46e272780ba194cf634490b11a75b3b9f8689 |
memory/1448-9-0x0000000073C3E000-0x0000000073C3F000-memory.dmp
memory/1448-10-0x0000000000A60000-0x0000000000A70000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp6567.tmp
| MD5 | 5955984e9807564d0056c4d592639075 |
| SHA1 | cb3d1cc966850f755e3d4d806b9876c616570672 |
| SHA256 | d4e4be3941aac26e06757bacdc317bd943fe62fbd1509be0e26350ccda831c1c |
| SHA512 | 72dab97ff2d8d19f976dc20c7bb83543c5f2079d41fbb6bdb81fdac43084ebc4afc9edca4ddc81f2042c322ef4f7344f1868d57de01ee9ec82eaa0ffff787570 |
memory/1448-13-0x0000000073C30000-0x000000007431E000-memory.dmp
memory/1448-14-0x0000000073C30000-0x000000007431E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-13 13:31
Reported
2024-08-13 13:33
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
130s
Command Line
Signatures
XenorRat
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\schtasks.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2004 wrote to memory of 1020 | N/A | C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe |
| PID 2004 wrote to memory of 1020 | N/A | C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe |
| PID 2004 wrote to memory of 1020 | N/A | C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe |
| PID 1020 wrote to memory of 1568 | N/A | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe | C:\Windows\SysWOW64\schtasks.exe |
| PID 1020 wrote to memory of 1568 | N/A | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe | C:\Windows\SysWOW64\schtasks.exe |
| PID 1020 wrote to memory of 1568 | N/A | C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe | C:\Windows\SysWOW64\schtasks.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe
"C:\Users\Admin\AppData\Local\Temp\fnfnayeemsirmod.exe"
C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe
"C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /Create /TN "macchanger" /XML "C:\Users\Admin\AppData\Local\Temp\tmp979C.tmp" /F
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| N/A | 127.0.0.1:4444 | tcp | |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 65.139.73.23.in-addr.arpa | udp |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| US | 8.8.8.8:53 | 39.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp | |
| N/A | 127.0.0.1:4444 | tcp |
Files
memory/2004-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp
memory/2004-1-0x0000000000E00000-0x0000000000E10000-memory.dmp
C:\Users\Admin\AppData\Roaming\XenoManager\fnfnayeemsirmod.exe
| MD5 | b882799bf2bfee26b5f7c11dc6788134 |
| SHA1 | 6e7550054253349e498b5399ba8539036adb2e1f |
| SHA256 | b85d7c34416d1790525a95f190a2ede356e611659c1199c31de24c2e1c10171e |
| SHA512 | 5f918b654a663d7eec78fc71d48f3bbf91ffca8538f2a9a0f3f172f35cfa93af98f690edb77a44d2c8f8dcadcbf46e272780ba194cf634490b11a75b3b9f8689 |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fnfnayeemsirmod.exe.log
| MD5 | 916851e072fbabc4796d8916c5131092 |
| SHA1 | d48a602229a690c512d5fdaf4c8d77547a88e7a2 |
| SHA256 | 7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d |
| SHA512 | 07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521 |
memory/1020-15-0x0000000074DC0000-0x0000000075570000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp979C.tmp
| MD5 | 5955984e9807564d0056c4d592639075 |
| SHA1 | cb3d1cc966850f755e3d4d806b9876c616570672 |
| SHA256 | d4e4be3941aac26e06757bacdc317bd943fe62fbd1509be0e26350ccda831c1c |
| SHA512 | 72dab97ff2d8d19f976dc20c7bb83543c5f2079d41fbb6bdb81fdac43084ebc4afc9edca4ddc81f2042c322ef4f7344f1868d57de01ee9ec82eaa0ffff787570 |
memory/1020-18-0x0000000074DC0000-0x0000000075570000-memory.dmp
memory/1020-19-0x0000000074DC0000-0x0000000075570000-memory.dmp