Analysis Overview
SHA256
55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0
Threat Level: Known bad
The file 55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0N was found to be: Known bad.
Malicious Activity Summary
Urelas
Executes dropped EXE
Deletes itself
Loads dropped DLL
Checks computer location settings
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-10 12:32
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-10 12:32
Reported
2024-10-10 12:34
Platform
win7-20240903-en
Max time kernel
119s
Max time network
77s
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\elzyi.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zizyu.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0N.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\elzyi.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\zizyu.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\elzyi.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0N.exe
"C:\Users\Admin\AppData\Local\Temp\55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0N.exe"
C:\Users\Admin\AppData\Local\Temp\elzyi.exe
"C:\Users\Admin\AppData\Local\Temp\elzyi.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\_uinsey.bat" "
C:\Users\Admin\AppData\Local\Temp\zizyu.exe
"C:\Users\Admin\AppData\Local\Temp\zizyu.exe"
Network
| Country | Destination | Domain | Proto |
| KR | 218.54.31.226:11300 | tcp | |
| KR | 1.234.83.146:11170 | tcp | |
| KR | 218.54.31.166:11300 | tcp | |
| JP | 133.242.129.155:11300 | tcp |
Files
memory/2964-1-0x0000000000020000-0x0000000000021000-memory.dmp
memory/2964-0-0x0000000000C30000-0x0000000000CB1000-memory.dmp
\Users\Admin\AppData\Local\Temp\elzyi.exe
| MD5 | c42dcb94865aa2b66755a5a0fbd559b8 |
| SHA1 | 23a53df0128fd8ed225d29f909f40a805ca58ba6 |
| SHA256 | d954aef8afbcfbc208cb3b1bcd3b91a217b0474567ba7f40247cf94cae54df64 |
| SHA512 | f32062b573c1d3412c10ef7eee73c8d4f0d4fb7776ca508a5b0270ea6bbb6d677d4bb049d4c52b6d1fa7fe304e17c1713eb59e1b148c02f2a7fdd74d232cc926 |
memory/2964-19-0x0000000000C30000-0x0000000000CB1000-memory.dmp
memory/3060-21-0x00000000002E0000-0x0000000000361000-memory.dmp
memory/3060-20-0x0000000000020000-0x0000000000021000-memory.dmp
memory/2964-15-0x0000000002850000-0x00000000028D1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_uinsey.bat
| MD5 | 0b5d9b9dbd7c276741af6ee45404c08c |
| SHA1 | d81a27eb6c8b2054d7423ef081d366569e1c6bb1 |
| SHA256 | e2618db90f2a2c8c750ecc9ffb97b9794f0a72a618dc4c226aa756e235ef9f79 |
| SHA512 | 436eaa2ccfb6d0b151a45ced1d76587db9fc1dc16a5b0a0797c9694e59a4fe4e10e1d7b70e03e1317c70a705d0a0764556543d288709e3596906278e0fa40493 |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 1907692761ac2c20ef9d5f0b882903f1 |
| SHA1 | 86af4563ef0584e27146db657e7a185518770da0 |
| SHA256 | b71b6f04a697f80da9f6caf9db79989aea2357365131cac436ea32fa9e51401c |
| SHA512 | 10cefb07867fdacb1f26210e451e2629a7905300712c299dabf16a65bd8f8b428b131ad3c14697f26548fce56f5698b95d2b09d3c08549a3ba83cdf35b4780bb |
memory/3060-24-0x0000000000020000-0x0000000000021000-memory.dmp
memory/3060-25-0x00000000002E0000-0x0000000000361000-memory.dmp
\Users\Admin\AppData\Local\Temp\zizyu.exe
| MD5 | 4b7b8c849830aa2a5c9a9bf71097f648 |
| SHA1 | 85636dad57dc9691dfdbe4e6a0178137cbf9f24d |
| SHA256 | 9f8cc58bd48ebcb2f7775fb6956f8139c94a253d1788de1a747d88aae4e39e35 |
| SHA512 | 3e1bdb7f03b066c7f8b23fd2934bf4a2472a785d9731e1e438bbf58896d461a2641ac5fd3197386b9c31f81771c7d06856a1cb566d512b3490f845126adbbba5 |
memory/3060-38-0x0000000003640000-0x00000000036D9000-memory.dmp
memory/2472-43-0x00000000009E0000-0x0000000000A79000-memory.dmp
memory/2472-44-0x00000000009E0000-0x0000000000A79000-memory.dmp
memory/3060-42-0x00000000002E0000-0x0000000000361000-memory.dmp
memory/2472-48-0x00000000009E0000-0x0000000000A79000-memory.dmp
memory/2472-49-0x00000000009E0000-0x0000000000A79000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-10 12:32
Reported
2024-10-10 12:34
Platform
win10v2004-20241007-en
Max time kernel
120s
Max time network
95s
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\55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0N.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ozodf.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ozodf.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\poizd.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\55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\ozodf.exe | N/A |
| 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\poizd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0N.exe
"C:\Users\Admin\AppData\Local\Temp\55dd77ef23b5a46b79ad15396596131fe5d0d6e4229e1ff8b8a1aabffee6e1a0N.exe"
C:\Users\Admin\AppData\Local\Temp\ozodf.exe
"C:\Users\Admin\AppData\Local\Temp\ozodf.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_uinsey.bat" "
C:\Users\Admin\AppData\Local\Temp\poizd.exe
"C:\Users\Admin\AppData\Local\Temp\poizd.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| KR | 218.54.31.226:11300 | tcp | |
| KR | 1.234.83.146:11170 | tcp | |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.209.201.84.in-addr.arpa | udp |
| KR | 218.54.31.166:11300 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| JP | 133.242.129.155:11300 | tcp | |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/3476-0-0x0000000000F30000-0x0000000000FB1000-memory.dmp
memory/3476-1-0x00007FFB7C750000-0x00007FFB7C945000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ozodf.exe
| MD5 | 9a3d0088139ed1e3c8989196d1deb8ca |
| SHA1 | 4a641f84e3337013faf632320a85e384f54286a5 |
| SHA256 | 852d102e2fd5bb35074bb60f502cba820aa436b0dc90e46dc58d39778550930c |
| SHA512 | f56eccc1feacaf046c43e03eb6c01dc7e48cbe190446920fe6841ffefe26084665caf13d14d123180267c742e0e5aeec9338798faf010de6bfb9d178e30772ba |
memory/2272-11-0x0000000000D90000-0x0000000000E11000-memory.dmp
memory/2272-14-0x00007FFB7C750000-0x00007FFB7C945000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_uinsey.bat
| MD5 | 0b5d9b9dbd7c276741af6ee45404c08c |
| SHA1 | d81a27eb6c8b2054d7423ef081d366569e1c6bb1 |
| SHA256 | e2618db90f2a2c8c750ecc9ffb97b9794f0a72a618dc4c226aa756e235ef9f79 |
| SHA512 | 436eaa2ccfb6d0b151a45ced1d76587db9fc1dc16a5b0a0797c9694e59a4fe4e10e1d7b70e03e1317c70a705d0a0764556543d288709e3596906278e0fa40493 |
memory/3476-17-0x0000000000F30000-0x0000000000FB1000-memory.dmp
memory/3476-19-0x00007FFB7C750000-0x00007FFB7C945000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 806f9f5fdfd0cdcb1ef36c6c38d4e12e |
| SHA1 | 75552f701a9bd7afe553c9019f5097e511e2123a |
| SHA256 | 244b53a85d28f0f4dc953855fff4f2f80f8d7d896c9ed0f3d0a5a4c8d7590b7e |
| SHA512 | 76c1eaf9f6cbd62f2a2dbc99b5335ac97181534bbdbcfcc425f3d146952c4faf06a78c4ed7eefd3d8a789c4583bd6f2ddff167e00802dbfad41de73c60a97abc |
memory/2272-21-0x0000000000D90000-0x0000000000E11000-memory.dmp
memory/2272-22-0x00007FFB7C750000-0x00007FFB7C945000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\poizd.exe
| MD5 | b1ba884cbbd392fb469b583eb6a632a0 |
| SHA1 | d258fdfcd08cccfd27503db60f07fe50828c14b6 |
| SHA256 | d27b8e23059ebf3442c17b2ce94ed5e8ebadfdc3bad2339f56edcc44ae292cbd |
| SHA512 | c3364c98ac3b476313d938e99260e0e0276298bb4f0293b1f71b067561ac2677ccd1f1de4b659bd222eb7772a0cc294ef4c393b7077bcda7f2e7d6db132ddc29 |
memory/2272-46-0x00007FFB7C750000-0x00007FFB7C945000-memory.dmp
memory/4936-43-0x0000000000F80000-0x0000000001019000-memory.dmp
memory/2272-42-0x0000000000D90000-0x0000000000E11000-memory.dmp
memory/4936-40-0x00007FFB7C750000-0x00007FFB7C945000-memory.dmp
memory/4936-39-0x0000000000F80000-0x0000000001019000-memory.dmp
memory/4936-48-0x0000000000F80000-0x0000000001019000-memory.dmp
memory/4936-49-0x0000000000F80000-0x0000000001019000-memory.dmp