Analysis Overview
SHA256
def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868
Threat Level: Known bad
The file def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868N was found to be: Known bad.
Malicious Activity Summary
Urelas
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Deletes itself
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-12 09:40
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-12 09:40
Reported
2024-10-12 09:43
Platform
win7-20241010-en
Max time kernel
149s
Max time network
84s
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\mirut.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\riabn.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868N.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mirut.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\def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\mirut.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\riabn.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868N.exe
"C:\Users\Admin\AppData\Local\Temp\def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868N.exe"
C:\Users\Admin\AppData\Local\Temp\mirut.exe
"C:\Users\Admin\AppData\Local\Temp\mirut.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\_uinsey.bat" "
C:\Users\Admin\AppData\Local\Temp\riabn.exe
"C:\Users\Admin\AppData\Local\Temp\riabn.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/2904-0-0x0000000001000000-0x0000000001081000-memory.dmp
memory/2904-1-0x0000000000020000-0x0000000000021000-memory.dmp
\Users\Admin\AppData\Local\Temp\mirut.exe
| MD5 | e615ae092b985fb2f5882b63f1cee16d |
| SHA1 | 2516cb9d5a75c87a2139f057dabaf042fbae1f29 |
| SHA256 | 36228f9ff3b2513f711fb7d367ce5c725d068615a332369b3982e9b0f5f82307 |
| SHA512 | dc1a57844dc2726a3004d7790fbe0b9d126fbd6a1022ebb01f7b84d36c1b3ebbcce3e84d4efa2f851284170282a7bf242b0d0ddcdf2ababb38e1d745fa90429d |
memory/2904-7-0x0000000000E40000-0x0000000000EC1000-memory.dmp
memory/2436-11-0x0000000000D60000-0x0000000000DE1000-memory.dmp
memory/2436-12-0x0000000000020000-0x0000000000021000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_uinsey.bat
| MD5 | af07bbbf99824bb85d4b9b850a1aa6a4 |
| SHA1 | b8ec12968efb0a2df10777d10ed34e1d28789bbe |
| SHA256 | e56caf3c576e3fa94afb3be10f6fc9ee44bc135e1ca1889bb1605da68e5aaf56 |
| SHA512 | 0d593fc865d89460b465d24d02ecf54772bb1503bc27b53f76cc40d805c10c44f61ff8e7d0000ec4ffdd52be3fd8f3c52d4177bb08f10792751269d6601153b9 |
memory/2904-21-0x0000000001000000-0x0000000001081000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 6850c5a93212a7b3d3f141dae7260aa8 |
| SHA1 | 686a4aa22971128df1db62c31f47bb36c3213627 |
| SHA256 | 553420faff7d930ec671ea49e194d5ec4a6452d983766acaa2abc5c7fd7a836b |
| SHA512 | c87b5d76e0ac59b8be93c380d514b2363aba7ea02159cd863ed7d7fafcc42a740cddbe9d0ebc4ef7a3b0c626f2e479515ebfae5dd3595c1c4dbe1c6876ffc7e3 |
memory/2436-24-0x0000000000D60000-0x0000000000DE1000-memory.dmp
\Users\Admin\AppData\Local\Temp\riabn.exe
| MD5 | 1d3d898e536a535f27af57d2b9a75890 |
| SHA1 | 256d35ccc88c0f6d4acd2582293bb218cc014b08 |
| SHA256 | 839eb40d1b6415fa4f56ebfcbe60e33b10b2b8f174244391d8ca6daaa6917007 |
| SHA512 | 7da931b0efba9016a6c9406ccfd613205477e2de6c16c1f7ce008747ca377ea1d53eb3a48c6a1ad2eeaf18c2aedac71a93711309519cdb7603c8ed66efe9d601 |
memory/2436-40-0x0000000000D60000-0x0000000000DE1000-memory.dmp
memory/3068-41-0x0000000000C10000-0x0000000000CA9000-memory.dmp
memory/3068-42-0x0000000000C10000-0x0000000000CA9000-memory.dmp
memory/3068-46-0x0000000000C10000-0x0000000000CA9000-memory.dmp
memory/3068-47-0x0000000000C10000-0x0000000000CA9000-memory.dmp
memory/3068-48-0x0000000000C10000-0x0000000000CA9000-memory.dmp
memory/3068-49-0x0000000000C10000-0x0000000000CA9000-memory.dmp
memory/3068-50-0x0000000000C10000-0x0000000000CA9000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-12 09:40
Reported
2024-10-12 09:43
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
123s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868N.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\holiw.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\holiw.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\iqrun.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\def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\holiw.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\iqrun.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868N.exe
"C:\Users\Admin\AppData\Local\Temp\def25c03fa68d007f62b5b8ca42175194dafa4ad54b73248b382578679ce1868N.exe"
C:\Users\Admin\AppData\Local\Temp\holiw.exe
"C:\Users\Admin\AppData\Local\Temp\holiw.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\iqrun.exe
"C:\Users\Admin\AppData\Local\Temp\iqrun.exe"
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 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.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 | 73.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| KR | 218.54.31.166:11300 | tcp | |
| US | 8.8.8.8:53 | 66.209.201.84.in-addr.arpa | udp |
| JP | 133.242.129.155:11300 | tcp | |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
Files
memory/4624-0-0x00000000007D0000-0x0000000000851000-memory.dmp
memory/4624-1-0x0000000000530000-0x0000000000531000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holiw.exe
| MD5 | 10e397c9dbf60a0a3faa18599df606fa |
| SHA1 | 8644c3bc0e382cc0e6755b1cf69049b03289d81b |
| SHA256 | a3af35cdadbcde95785ce8412ee2ea44dbc26aa403d66aedffdca89562e26aab |
| SHA512 | 4109ae460dcba51835fda55bb2c15151733d9ae4a6f8dd7aea0f29ccb83d6a5bf26d524025109b7551410df4e981091bc96c462b3af475c5173459a2edc5c6fe |
memory/4364-14-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/4364-13-0x0000000000680000-0x0000000000701000-memory.dmp
memory/4624-17-0x00000000007D0000-0x0000000000851000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_uinsey.bat
| MD5 | af07bbbf99824bb85d4b9b850a1aa6a4 |
| SHA1 | b8ec12968efb0a2df10777d10ed34e1d28789bbe |
| SHA256 | e56caf3c576e3fa94afb3be10f6fc9ee44bc135e1ca1889bb1605da68e5aaf56 |
| SHA512 | 0d593fc865d89460b465d24d02ecf54772bb1503bc27b53f76cc40d805c10c44f61ff8e7d0000ec4ffdd52be3fd8f3c52d4177bb08f10792751269d6601153b9 |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | aaa3f15a02d22da7daf8bfeea2c5949e |
| SHA1 | df63dfe669f34a7c5f6210e636feb7d393def7db |
| SHA256 | 2df1b2e35509f7571d5e3cb628dfeb86afc5b6d70b1c57cb29f275adf77d366a |
| SHA512 | f9df2d02fe28610629f936dbf4456488a49482030ddad799f5868ce1c041cb02aceddb4f6532d15564c720133817d071d4dbff198af6e01f489db1d8bfbfab96 |
memory/4364-20-0x0000000000680000-0x0000000000701000-memory.dmp
memory/4364-21-0x00000000003F0000-0x00000000003F1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\iqrun.exe
| MD5 | 03d60a80f4ecf957a9bc2df8f2f5cb27 |
| SHA1 | 6ba25335f442c9a0d2f451849252f67207b847f4 |
| SHA256 | c0ab7fb49c95cc18a4db23b54df28d2c338a33aef194366f9e273d8b6408054a |
| SHA512 | b2547a89f9c9fa17ddf10dbeea6eae385310dfd9811d2e2e38dd1c9c894ccf2160915325f625c44ba6f34195d7569f3433bae2f78cdedac8dbb2640e8c4b9d78 |
memory/3788-39-0x00000000002A0000-0x00000000002A2000-memory.dmp
memory/3788-38-0x00000000002D0000-0x0000000000369000-memory.dmp
memory/3788-42-0x00000000002D0000-0x0000000000369000-memory.dmp
memory/4364-41-0x0000000000680000-0x0000000000701000-memory.dmp
memory/3788-47-0x00000000002A0000-0x00000000002A2000-memory.dmp
memory/3788-46-0x00000000002D0000-0x0000000000369000-memory.dmp
memory/3788-48-0x00000000002D0000-0x0000000000369000-memory.dmp
memory/3788-49-0x00000000002D0000-0x0000000000369000-memory.dmp
memory/3788-50-0x00000000002D0000-0x0000000000369000-memory.dmp
memory/3788-51-0x00000000002D0000-0x0000000000369000-memory.dmp