Analysis Overview
SHA256
c0e61c8fbc6b320c01761eb5d90502565ea16ecfe5d74deb59bc8382aac48070
Threat Level: Known bad
The file cd94536d67787cb12cac968c029cca80N.exe was found to be: Known bad.
Malicious Activity Summary
Urelas
Loads dropped DLL
Executes dropped EXE
Checks computer location settings
Deletes itself
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-14 02:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-14 02:52
Reported
2024-08-14 02:54
Platform
win7-20240704-en
Max time kernel
89s
Max time network
87s
Command Line
Signatures
Urelas
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\biudfw.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.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\cd94536d67787cb12cac968c029cca80N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\biudfw.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe
"C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe"
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
Network
| Country | Destination | Domain | Proto |
| KR | 218.54.47.76:11120 | tcp | |
| KR | 218.54.47.74:11150 | tcp | |
| KR | 218.54.47.76:11170 | tcp | |
| KR | 218.54.47.77:11150 | tcp |
Files
memory/2232-0-0x0000000000300000-0x0000000000328000-memory.dmp
\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | c73746ed122d9f48cdbb5bd6ce5f1e31 |
| SHA1 | c7dafb47d87c7af55eb7147231d88e4b19ae3b79 |
| SHA256 | 40fbc9b82a7fbf5e6ed9e75bcf3ae2a43b3335a0d9de954f6592028e29b0f188 |
| SHA512 | ca117cb009d546c25ffb4f5816b07aa93e4d6b6772b7bfcba626930091e840b9c7b151efbb974c6350e9da2f87ba6ece800cf3fbbe0e7f40ab60d7af9e3d33ee |
memory/2232-16-0x0000000001E10000-0x0000000001E38000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | 3aac692dde463bbf4cf54c221bbf7b2d |
| SHA1 | 0325e2a96895c7b46a9e6a41f64e41b6e4d347a2 |
| SHA256 | acf65beec677139eb943d39fbd7f7be1fec7cd4d77664908d75bfd271b026c9d |
| SHA512 | 1f97ba0cd8505d5c5942218c5ccaf407f8a1abf4e2bc0f22f99dd50566ba339123aa9aba9760761fc4e8594902239f546c0cded99bdbfbdee556ef415a8e079e |
memory/2688-17-0x0000000000D90000-0x0000000000DB8000-memory.dmp
memory/2232-18-0x0000000000300000-0x0000000000328000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | a250860c0687ed9dda488805c025a2d2 |
| SHA1 | 0c181ed3b46463d35631ca169f0928c33a1da389 |
| SHA256 | 3947c34dfc780b424a3207c6ebe12f667bcb839733107f7a94fe495ec705cb37 |
| SHA512 | 0286fcd24203ef574c9fc37200e4b0e65d58296162aa89b5424ab48b814bd237e609ab7eaf42a69bdad2ab6414bfbbfaec4757e28b29c69752e0e65a653f665a |
memory/2688-21-0x0000000000D90000-0x0000000000DB8000-memory.dmp
memory/2688-23-0x0000000000D90000-0x0000000000DB8000-memory.dmp
memory/2688-29-0x0000000000D90000-0x0000000000DB8000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-14 02:52
Reported
2024-08-14 02:54
Platform
win10v2004-20240802-en
Max time kernel
120s
Max time network
124s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\biudfw.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\cd94536d67787cb12cac968c029cca80N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\biudfw.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1468 wrote to memory of 2676 | N/A | C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe | C:\Users\Admin\AppData\Local\Temp\biudfw.exe |
| PID 1468 wrote to memory of 2676 | N/A | C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe | C:\Users\Admin\AppData\Local\Temp\biudfw.exe |
| PID 1468 wrote to memory of 2676 | N/A | C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe | C:\Users\Admin\AppData\Local\Temp\biudfw.exe |
| PID 1468 wrote to memory of 4508 | N/A | C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1468 wrote to memory of 4508 | N/A | C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1468 wrote to memory of 4508 | N/A | C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe
"C:\Users\Admin\AppData\Local\Temp\cd94536d67787cb12cac968c029cca80N.exe"
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| KR | 218.54.47.76:11120 | tcp | |
| KR | 218.54.47.74:11150 | tcp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| KR | 218.54.47.76:11170 | tcp | |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| KR | 218.54.47.77:11150 | tcp | |
| US | 52.111.227.11:443 | tcp | |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| 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 | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
Files
memory/1468-0-0x00000000006A0000-0x00000000006C8000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | ca8b1550bf94c098af1837c12698f4fa |
| SHA1 | e9215a3afa9df75fcb4f706f1c1964721643fca4 |
| SHA256 | 32f95e5508f61bd057df49bc3630122343fd6a7d07deeb269a0a188b771c87ac |
| SHA512 | d0f32d59cc29c64e0ed4ca6f18273febd1b9894a9622c87eb8096933772b39345ec229f31105c37a8e5ad6762e11e95829139d92706f4c159277d5f8bb4aeed2 |
memory/2676-13-0x0000000000EC0000-0x0000000000EE8000-memory.dmp
memory/1468-18-0x00000000006A0000-0x00000000006C8000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | 3aac692dde463bbf4cf54c221bbf7b2d |
| SHA1 | 0325e2a96895c7b46a9e6a41f64e41b6e4d347a2 |
| SHA256 | acf65beec677139eb943d39fbd7f7be1fec7cd4d77664908d75bfd271b026c9d |
| SHA512 | 1f97ba0cd8505d5c5942218c5ccaf407f8a1abf4e2bc0f22f99dd50566ba339123aa9aba9760761fc4e8594902239f546c0cded99bdbfbdee556ef415a8e079e |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | a250860c0687ed9dda488805c025a2d2 |
| SHA1 | 0c181ed3b46463d35631ca169f0928c33a1da389 |
| SHA256 | 3947c34dfc780b424a3207c6ebe12f667bcb839733107f7a94fe495ec705cb37 |
| SHA512 | 0286fcd24203ef574c9fc37200e4b0e65d58296162aa89b5424ab48b814bd237e609ab7eaf42a69bdad2ab6414bfbbfaec4757e28b29c69752e0e65a653f665a |
memory/2676-21-0x0000000000EC0000-0x0000000000EE8000-memory.dmp
memory/2676-23-0x0000000000EC0000-0x0000000000EE8000-memory.dmp
memory/2676-29-0x0000000000EC0000-0x0000000000EE8000-memory.dmp