Analysis Overview
SHA256
92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080
Threat Level: Known bad
The file 92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080N was found to be: Known bad.
Malicious Activity Summary
Urelas
Deletes itself
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-13 11:16
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-13 11:16
Reported
2024-10-13 11:18
Platform
win7-20240903-en
Max time kernel
122s
Max time network
123s
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\92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080N.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\92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080N.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\92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080N.exe
"C:\Users\Admin\AppData\Local\Temp\92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080N.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/2480-0-0x0000000001160000-0x0000000001192000-memory.dmp
\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | 7b5ee2ee3b8598bae2c206e420c12965 |
| SHA1 | a581439c03b04b1ceb873f78f3a45cda3fc77f44 |
| SHA256 | 2297c18d69b894889751b3fe622cb15ac3530d0297a9f5ae30dd095074a79dc1 |
| SHA512 | 61ef665517216dccf272c0640300006c473d511ed8817eed2e46ad69e1da7970ba0bc7b00d5bd7cce14ed4f607df317297b6c9b785db489568692a1cd3a10691 |
memory/1148-10-0x0000000001250000-0x0000000001282000-memory.dmp
memory/2480-7-0x0000000000AD0000-0x0000000000B02000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | 676482554c49f761e4f44639b6e96633 |
| SHA1 | 4a2ec30252639ab31b09694f49df2b01def0a56c |
| SHA256 | be4fdbd3339f0c3f757adb6ffacee9d92a378abbfb9251a1d06ec0dbf3aa200f |
| SHA512 | 034bed4cc8767d8100cd5c32d63f59b4c7dd4020c58d75600e4e0dd0fd8d4267a6c29e17a6c55357473784c499e92448bf4f0d40a80c7929f62b6e26b412b4e4 |
memory/2480-19-0x0000000001160000-0x0000000001192000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 26625b4ca7658f7ba4dc7d982782323c |
| SHA1 | 574aa314998c39e683675ccf457b0305341a4aaf |
| SHA256 | c494e0ffeee72023dac244366c08072f677ba328ba805f9e480abc2824e99283 |
| SHA512 | 5a9af4c6be10240dec0d33b37bc6f6836f1db5d0a2a9dd158d63848a8a97dad68e2d9217aca2b2d1cf122d9534aba0d23b247f6686c4ff934bd7035a927d9b9d |
memory/1148-22-0x0000000001250000-0x0000000001282000-memory.dmp
memory/1148-24-0x0000000001250000-0x0000000001282000-memory.dmp
memory/1148-30-0x0000000001250000-0x0000000001282000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-13 11:16
Reported
2024-10-13 11:18
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080N.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\92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080N.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\92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080N.exe
"C:\Users\Admin\AppData\Local\Temp\92ea1c4a69e8b1f2708691e8a6160e78f74c224d7a498f7f3cecb93a745ce080N.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 | 150.171.28.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.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 | 56.163.245.4.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 | 218.54.47.76:11170 | tcp | |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| KR | 218.54.47.77:11150 | tcp | |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/1888-0-0x0000000000D20000-0x0000000000D52000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | 7c6144f4c7e5f14a63d2f22e8507f89e |
| SHA1 | 051b89af99403d21c6d95346a319d7e27008bf25 |
| SHA256 | 06b0d38f8c9014ef5a353ba0d8e06dcfc2ced9e6cb9a590d73ecb5f7df6f8986 |
| SHA512 | 0fc24ef326947d3573b4521d35815ad365c3c22a8d6cff26d25a9f3248405777367063e3c4a9c7fd670a12f29b4c0ffc22cb7e44f972c1d9645df85c42dda58d |
memory/2808-15-0x0000000000CF0000-0x0000000000D22000-memory.dmp
memory/1888-18-0x0000000000D20000-0x0000000000D52000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | 676482554c49f761e4f44639b6e96633 |
| SHA1 | 4a2ec30252639ab31b09694f49df2b01def0a56c |
| SHA256 | be4fdbd3339f0c3f757adb6ffacee9d92a378abbfb9251a1d06ec0dbf3aa200f |
| SHA512 | 034bed4cc8767d8100cd5c32d63f59b4c7dd4020c58d75600e4e0dd0fd8d4267a6c29e17a6c55357473784c499e92448bf4f0d40a80c7929f62b6e26b412b4e4 |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 26625b4ca7658f7ba4dc7d982782323c |
| SHA1 | 574aa314998c39e683675ccf457b0305341a4aaf |
| SHA256 | c494e0ffeee72023dac244366c08072f677ba328ba805f9e480abc2824e99283 |
| SHA512 | 5a9af4c6be10240dec0d33b37bc6f6836f1db5d0a2a9dd158d63848a8a97dad68e2d9217aca2b2d1cf122d9534aba0d23b247f6686c4ff934bd7035a927d9b9d |
memory/2808-21-0x0000000000CF0000-0x0000000000D22000-memory.dmp
memory/2808-23-0x0000000000CF0000-0x0000000000D22000-memory.dmp
memory/2808-30-0x0000000000CF0000-0x0000000000D22000-memory.dmp