Analysis Overview
SHA256
e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45
Threat Level: Known bad
The file e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45 was found to be: Known bad.
Malicious Activity Summary
Urelas
Executes dropped EXE
Deletes itself
Loads dropped DLL
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-08 03:58
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-08 03:58
Reported
2024-10-08 06:33
Platform
win7-20240903-en
Max time kernel
109s
Max time network
97s
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\e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45.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\e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45.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\e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45.exe
"C:\Users\Admin\AppData\Local\Temp\e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45.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/1480-0-0x0000000001120000-0x0000000001145000-memory.dmp
memory/1480-6-0x0000000000990000-0x00000000009B5000-memory.dmp
\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | ca26a4c65b370ecd08f507fd211d797e |
| SHA1 | 27dffdb5414587bc664e41047aac1bdc62a4303f |
| SHA256 | 4394749d0ffa1ce8b8c676465444a5006deb854e38518e2623159a89a73f039b |
| SHA512 | 6139d177e0524bc2e94a2f70de866c5b299289c033fb4a1bcbe0b5ebe17b5d41e6aec9214c980440d5f4b68381655b5601ba5d08d0d7272550b4d9d6a4cd0289 |
memory/1480-17-0x0000000001120000-0x0000000001145000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | 392b9598244584ca33cdb0d6dedd4741 |
| SHA1 | 8c3d39e3c90e5c8e906fe1817d4c427096fb9df3 |
| SHA256 | 96026e9d1443dfa05f196d715ce5c201dc845fbe761e13d94e9c8c501faa7d09 |
| SHA512 | f6ee9f839f42c153effb116b5b9f9c598b70b5c4360ea5bb374456b37f6eb8041e96313fb8bd42cae3114e956c295d350ac5cfc0f802e5ec029639c05bb6fc5a |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | efd90b3ac908d5482af367de3a82184a |
| SHA1 | de9f01d2ed0247b7b347e55c5a09721a60147fb9 |
| SHA256 | 44f3db1bb73bb207a88008ae28d0399f888b5714ccccb2056f4148b4455e693d |
| SHA512 | 6e3355f895af1d81887d5750033c5a139e4a0e1c2c928aeef1fd37f9c191e754b1f524d252c229ea5e744dbef4dd0a8240d9d3443651d42de198e82a197afb02 |
memory/344-20-0x0000000000EE0000-0x0000000000F05000-memory.dmp
memory/344-22-0x0000000000EE0000-0x0000000000F05000-memory.dmp
memory/344-29-0x0000000000EE0000-0x0000000000F05000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-08 03:58
Reported
2024-10-08 10:20
Platform
win10v2004-20241007-en
Max time kernel
150s
Max time network
153s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45.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:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\biudfw.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45.exe
"C:\Users\Admin\AppData\Local\Temp\e5eefe1651e793cd90eeb1b249b0468bac77692c91d3a2278a8384ede32b4d45.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 | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| KR | 218.54.47.76:11120 | tcp | |
| KR | 218.54.47.74:11150 | tcp | |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| KR | 218.54.47.76:11170 | tcp | |
| KR | 218.54.47.77:11150 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/4028-0-0x0000000000110000-0x0000000000135000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | e4e8c2e126d6b7b7cca339e070424fec |
| SHA1 | deec76f8142a6ca4fd097cb817185b052dc15bbf |
| SHA256 | cace96c1e4c87ecf7738f98962a8eb42bc79ebf5d57936173f92a7212c4781a1 |
| SHA512 | 57a3332cdd294a5849262b83feebe8f6826376d7e24e2392699fbbab67d64c86ae3adca5874ec06cf072ba54969a94e406931e23c28ebfeb0bca8155f0c3e1b1 |
memory/4028-17-0x0000000000110000-0x0000000000135000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | 392b9598244584ca33cdb0d6dedd4741 |
| SHA1 | 8c3d39e3c90e5c8e906fe1817d4c427096fb9df3 |
| SHA256 | 96026e9d1443dfa05f196d715ce5c201dc845fbe761e13d94e9c8c501faa7d09 |
| SHA512 | f6ee9f839f42c153effb116b5b9f9c598b70b5c4360ea5bb374456b37f6eb8041e96313fb8bd42cae3114e956c295d350ac5cfc0f802e5ec029639c05bb6fc5a |
memory/3068-13-0x0000000000440000-0x0000000000465000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | efd90b3ac908d5482af367de3a82184a |
| SHA1 | de9f01d2ed0247b7b347e55c5a09721a60147fb9 |
| SHA256 | 44f3db1bb73bb207a88008ae28d0399f888b5714ccccb2056f4148b4455e693d |
| SHA512 | 6e3355f895af1d81887d5750033c5a139e4a0e1c2c928aeef1fd37f9c191e754b1f524d252c229ea5e744dbef4dd0a8240d9d3443651d42de198e82a197afb02 |
memory/3068-20-0x0000000000440000-0x0000000000465000-memory.dmp
memory/3068-22-0x0000000000440000-0x0000000000465000-memory.dmp
memory/3068-28-0x0000000000440000-0x0000000000465000-memory.dmp