Analysis Overview
SHA256
b8215c556f38aa804e5cf0797e2a44cfe40044655c7813eaa8b2a9b284bbe263
Threat Level: Known bad
The file b8215c556f38aa804e5cf0797e2a44cfe40044655c7813eaa8b2a9b284bbe263 was found to be: Known bad.
Malicious Activity Summary
Urelas family
Urelas
Executes dropped EXE
Deletes itself
Loads dropped DLL
Checks computer location settings
Enumerates physical storage devices
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-11 00:07
Signatures
Urelas family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-11 00:07
Reported
2024-03-11 00:09
Platform
win7-20240221-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\viofi.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fuhipo.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mezop.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8215c556f38aa804e5cf0797e2a44cfe40044655c7813eaa8b2a9b284bbe263.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\viofi.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fuhipo.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fuhipo.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\mezop.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b8215c556f38aa804e5cf0797e2a44cfe40044655c7813eaa8b2a9b284bbe263.exe
"C:\Users\Admin\AppData\Local\Temp\b8215c556f38aa804e5cf0797e2a44cfe40044655c7813eaa8b2a9b284bbe263.exe"
C:\Users\Admin\AppData\Local\Temp\viofi.exe
"C:\Users\Admin\AppData\Local\Temp\viofi.exe" hi
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
C:\Users\Admin\AppData\Local\Temp\fuhipo.exe
"C:\Users\Admin\AppData\Local\Temp\fuhipo.exe" OK
C:\Users\Admin\AppData\Local\Temp\mezop.exe
"C:\Users\Admin\AppData\Local\Temp\mezop.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1084 -s 36
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
Network
| Country | Destination | Domain | Proto |
| KR | 218.54.31.226:11110 | tcp | |
| KR | 1.234.83.146:11170 | tcp | |
| KR | 218.54.31.165:11110 | tcp | |
| JP | 133.242.129.155:11110 | tcp |
Files
memory/2972-0-0x0000000000400000-0x000000000046E000-memory.dmp
\Users\Admin\AppData\Local\Temp\viofi.exe
| MD5 | 75d6a38d9ea3754cfe2f6c4d1f2eb8d1 |
| SHA1 | 239e8e3847da8311c422194a3505819e2856b96d |
| SHA256 | 94f2fede29f8c3e7ccef323fc7e30a04573d9b4a83f69c517b351e52bb2a6012 |
| SHA512 | 8f991a2245ce6d8a9bcc61ccb9d721cda08295a4f14f28e4da719a2fc9e343f9b33c0ac202ff5bcbf28ced255a924c51fdb2db16aa4debd17317994ccc3d59ea |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 2479509c651c07d5e23f147c5fcac784 |
| SHA1 | ed750be917a06e701feccdf614c23f49f4a05434 |
| SHA256 | ef67909272efd389c1de437e3df6d3fd19a52cc7677900760de739ded58eef95 |
| SHA512 | e876ec1826a2807c2b1e5d84be1580bf6aee20bf06cc06bf7b34c2db2631cb3813a18947f05e9d193016d85f11cc9a85f37920cbbe90a61537247ca4487734a6 |
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | 392fe03859a4f294d2c15cb4fd401002 |
| SHA1 | 2dacf37e880afcbe94f8beb123cf64ca3571336e |
| SHA256 | c8c8530256248be7c054c1657b998440bc6b3371985033bcfdedd490dd14a99e |
| SHA512 | c7752051a881f0038ec9effe69d896f24264bba22dd189e8a59f328ed56bc2d285e3b96bafb7eb02ed4463923d451377960582fee4bb7c43ce8e950f4c8b2f03 |
memory/1636-10-0x0000000000400000-0x000000000046E000-memory.dmp
memory/2972-20-0x0000000000400000-0x000000000046E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\fuhipo.exe
| MD5 | 3f031f7b450e480fd854d12749502b64 |
| SHA1 | 805fcd65497c43e5ae850e095f9bd2464841c984 |
| SHA256 | af26fa148413a176d76207b9803d02e936db98c58cba18b9cac09ebb3e0f3719 |
| SHA512 | 9a07490e93bc6b1ba49144956add686596d5183e564cffacadc07c85d628df6580a62a2e0a4ac350e190799e36765652501ea04c8e03833c4ab7d530d5f5f177 |
memory/2544-27-0x0000000000400000-0x000000000046E000-memory.dmp
memory/1636-28-0x0000000000400000-0x000000000046E000-memory.dmp
\Users\Admin\AppData\Local\Temp\mezop.exe
| MD5 | 594d722205671b61ec88c686879bfe21 |
| SHA1 | d078eae3ca660178aaa4a5d1b33dfd3f6b8df8b2 |
| SHA256 | acc50be9ad3f52a32cc8c5e628b18b3e657cbead7f4a50627db0db885b5fece7 |
| SHA512 | c14f6061df8dbc1ff039a07507a989a318739ee7e8fdd63fda7f8716a18e444f88ab5ee90a2b67250e0aef073392db3e42747277d1b1804ad48dcdfca041dd09 |
C:\Users\Admin\AppData\Local\Temp\mezop.exe
| MD5 | e6733dbabea39f9fc4bfbf9b73861a48 |
| SHA1 | ab4240c159575ccf03cdffd663e622c9669a52b0 |
| SHA256 | 252864403649af4c068981d73d1e36fefb1e5827b6f65b9f00424965577a5861 |
| SHA512 | 03ff82481b8cf8b663a2be89760693557b128210839eeed4e64ae24c39d93605de8a1688f578d03c1cc8aa49e84378036b3d782fdb540d74d52b1c5ce0bf1d29 |
\Users\Admin\AppData\Local\Temp\mezop.exe
| MD5 | 94b39f3d8b00282d5e264b06e599a3d6 |
| SHA1 | 9c5b2c4955f6cd0453765bd531b21b9e4dcd72d0 |
| SHA256 | 27da15fd669491d4de5212ccf36cf44166baa5ec99edd50a2e157e35b9feec8d |
| SHA512 | 3c9765d64ab0ebd5d33b31247ecd9a0e7c9a062be384b2f8a486a4c78e6cb2737c65bd0b789d125dbeac90d54fa29f86aa14d1f2ab9c4babb7339cf80790d815 |
memory/2544-33-0x0000000002D50000-0x0000000002DF0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\mezop.exe
| MD5 | 252430541dcf49595c507492b4bf3d82 |
| SHA1 | fc5fab48671cdecf2b8dffc4872fb791848c7886 |
| SHA256 | 86f224fe24c3b1d8af6a4651c404b97ab5a7374230d1dfb6eaa165511f7c1fcf |
| SHA512 | c0e097d94006d3c8a714c7dd1c51ca5c86ce20b0a8b609c0955fce79f67c18b2add46db829406ffa81bdb52bfd7aea9795805e38cbe318e28a663ae260da50de |
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | 02695ff9e907714600ea970095692ee5 |
| SHA1 | 3253a1eb99c691679c8d3932923fc005b7a29ddb |
| SHA256 | 317656feaf0f4c54a6942d951c78670e2fc1817b2baeb764b2a64f5b21106b5f |
| SHA512 | 9b2b57d0b015ab51462ffdeceeeba6561b53d383700fdcc94e6a84c65a549cd45f792fbc7f9ea9a42a8104cfcfc6290eeb3cfbc22de4ca70309fa55cdcc86c8e |
memory/2544-48-0x0000000000400000-0x000000000046E000-memory.dmp
memory/2544-47-0x0000000002D50000-0x0000000002DF0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-11 00:07
Reported
2024-03-11 00:09
Platform
win10v2004-20231215-en
Max time kernel
128s
Max time network
131s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b8215c556f38aa804e5cf0797e2a44cfe40044655c7813eaa8b2a9b284bbe263.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\reuzu.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\qozeso.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\reuzu.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\qozeso.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\abjas.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\abjas.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\abjas.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b8215c556f38aa804e5cf0797e2a44cfe40044655c7813eaa8b2a9b284bbe263.exe
"C:\Users\Admin\AppData\Local\Temp\b8215c556f38aa804e5cf0797e2a44cfe40044655c7813eaa8b2a9b284bbe263.exe"
C:\Users\Admin\AppData\Local\Temp\reuzu.exe
"C:\Users\Admin\AppData\Local\Temp\reuzu.exe" hi
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
C:\Users\Admin\AppData\Local\Temp\qozeso.exe
"C:\Users\Admin\AppData\Local\Temp\qozeso.exe" OK
C:\Users\Admin\AppData\Local\Temp\abjas.exe
"C:\Users\Admin\AppData\Local\Temp\abjas.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4388 -ip 4388
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 216
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4388 -ip 4388
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 220
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| KR | 218.54.31.226:11110 | tcp | |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| KR | 1.234.83.146:11170 | tcp | |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| KR | 218.54.31.165:11110 | tcp | |
| JP | 133.242.129.155:11110 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/2280-0-0x0000000000400000-0x000000000046E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\reuzu.exe
| MD5 | 2873087efcc5ad82e7edaab61fc20ede |
| SHA1 | 0b26154719ba6c6136487f26e128e36d4f34d6ef |
| SHA256 | ad79e65f08cfe2e0d76eb8a53f6c382f79102c02e3271fbfb5fdabd787f37162 |
| SHA512 | 648b387e0947fc1ff65bf1998f03c868d69a9e3d8bc44d9a241e5949bfa5dbce43f63cd8cbd188a0475dd657a6d611e0b9fb95b5f27abdad83c9fec003bcdbca |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 6bf66ae60e32751c890307931922529d |
| SHA1 | 2d2a8e37de5a111c13d30c2b1d1194b95a5710e4 |
| SHA256 | 0fd7d3d36f2c71ad9a8d00db273e424a8964b650ac8c8d5c81afc76f26b06205 |
| SHA512 | 7538520615300bc708231e2b2354ce4e60148d016377189fc06c42b44100af00bfaec8e655559fa1931d5a1ad37d4f219a88d73da8ae437374bcecc734213a39 |
memory/2280-15-0x0000000000400000-0x000000000046E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | 392fe03859a4f294d2c15cb4fd401002 |
| SHA1 | 2dacf37e880afcbe94f8beb123cf64ca3571336e |
| SHA256 | c8c8530256248be7c054c1657b998440bc6b3371985033bcfdedd490dd14a99e |
| SHA512 | c7752051a881f0038ec9effe69d896f24264bba22dd189e8a59f328ed56bc2d285e3b96bafb7eb02ed4463923d451377960582fee4bb7c43ce8e950f4c8b2f03 |
C:\Users\Admin\AppData\Local\Temp\qozeso.exe
| MD5 | 59a4ae54b766af8467f135cf98f88b39 |
| SHA1 | b8a073d4de9ad174f79bae455ea2903f09eaa0d7 |
| SHA256 | c77159fd85da67e8a82d7e3a59287c67a1aa0a4f09a068365ada71a95f286c87 |
| SHA512 | 2379bc030393fd1624a2e507696adfd543b174b7876f001aaeafecd9025cba2662f7df1955ced0e03fa0abb92dc8dbbf273d32d44c4eae8b0a5a19d4dcc15f33 |
memory/2412-24-0x0000000000400000-0x000000000046E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\abjas.exe
| MD5 | 4091050586686180c782b16c79c7d2b8 |
| SHA1 | b9b168e16f1e1cc731ba09983233b3810f6e887a |
| SHA256 | 6da6aaae31932108601ee627b099c7d365e874e37a32eec10cef788fba90a06b |
| SHA512 | 6bb8ec522a407e13eaff8eea9d938ab66f15d60d2048209a645c4d01ff609123918c25d81fde39f14127e462761f39b6dde064e81f67515a6a1bcef5169c56b7 |
memory/4388-35-0x0000000000400000-0x00000000004A0000-memory.dmp
memory/3548-37-0x0000000000400000-0x000000000046E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | da843167b8bdfc6f7477976a7a7d4a42 |
| SHA1 | f8c20bf59448b35227b26099b63724091a0b68fb |
| SHA256 | 4697cba571b98d6b6c099546181734044ac5e7738785e267c07866075cff3d67 |
| SHA512 | 4a02893e64b6ef9d24e76cca9717db6947c2e26ff3e829cbba3980be53ce8eaa599d4a29cee123cf8274bd63550526de94763278bd2da7702c16930aaefd6d89 |