Analysis Overview
SHA256
2360ff4b08c781ca8bad30e528d943ad791611cc26a9df276043423b0566ad5e
Threat Level: Known bad
The file bf7a5db5b56489321d405dccc39b0f58 was found to be: Known bad.
Malicious Activity Summary
Urelas
Urelas family
Loads dropped DLL
UPX packed file
Checks computer location settings
Deletes itself
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-11 01:25
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 01:25
Reported
2024-03-11 01:27
Platform
win7-20231129-en
Max time kernel
149s
Max time network
121s
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\bekii.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\teqyi.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bf7a5db5b56489321d405dccc39b0f58.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bekii.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bf7a5db5b56489321d405dccc39b0f58.exe
"C:\Users\Admin\AppData\Local\Temp\bf7a5db5b56489321d405dccc39b0f58.exe"
C:\Users\Admin\AppData\Local\Temp\bekii.exe
"C:\Users\Admin\AppData\Local\Temp\bekii.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\_sannuy.bat" "
C:\Users\Admin\AppData\Local\Temp\teqyi.exe
"C:\Users\Admin\AppData\Local\Temp\teqyi.exe"
Network
| Country | Destination | Domain | Proto |
| KR | 218.54.31.226:11120 | tcp | |
| KR | 1.234.83.146:11170 | tcp | |
| KR | 218.54.30.235:11120 | tcp | |
| JP | 133.242.129.155:11120 | tcp |
Files
memory/2548-0-0x0000000000A30000-0x0000000000AAC000-memory.dmp
\Users\Admin\AppData\Local\Temp\bekii.exe
| MD5 | 72bdd977088251f8edf5387ba8235ed3 |
| SHA1 | fd7ddd74f7128a227122e995f0e000c6c9807461 |
| SHA256 | 72b2fa4a3478f49f84cef51e65a98f91a42dce89780dc68df791a8698dbb944f |
| SHA512 | 4bb26c3c4fa2989508d47e678851d2f6e161f5e091d8f2b44f85e35d56b62cf4d3b0be9026565cc84e94ce990b14659a6dc139b3edf4b32247dca604bd93addc |
memory/2548-8-0x0000000002DF0000-0x0000000002E6C000-memory.dmp
memory/2976-18-0x0000000000AE0000-0x0000000000B5C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_sannuy.bat
| MD5 | 1e0d50a82fc10397abbb7ec39a3b9f44 |
| SHA1 | 16253bb940e51d513f8b6605bfb58c1f10bc8e9a |
| SHA256 | e8ca7f9eafcf0ac65bc881697efb9310becf7f810c0589d9baf5c798b088ce9e |
| SHA512 | 980aca66c367ca6e227c28a3e95cd06f3c91a1f237cdff37f0909af2f4bb3a3e74dac72420c4947e1a3c4c383d79d8ba132161510406216b6a1967afc1db8088 |
memory/2548-17-0x0000000000A30000-0x0000000000AAC000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | da1f514f060eafa56c086982b4caeb98 |
| SHA1 | fcacce7545fd1198496dad498d8a613d4e30b7d0 |
| SHA256 | d92c7974b6ce6d3426a7a8b5b5baff885ab9e94f8b6e494abe1a3821fadb6c03 |
| SHA512 | 4678df3b43fff60f2f23ef385036ee3b3d557aefba120f543a7e0fe7cad58984f8c3e34cce45adf0159834bc53a2e5f5d10d76ce318e10dd284efd94f4041b35 |
memory/2976-27-0x0000000000AE0000-0x0000000000B5C000-memory.dmp
memory/2736-28-0x0000000000400000-0x000000000049F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\teqyi.exe
| MD5 | f6198fd5546226b2d9010ed9ca67ae1f |
| SHA1 | 68fd4133035a2e06c9663f3edc306b0b53be16bb |
| SHA256 | 853347edf57123ea2bf27589e581c6ee37bb4785d350a8d770fa19b7a0eeb042 |
| SHA512 | bc70424d1de11e38f904a634d1efb0782819b461cb067e8ba244ab50ea482dfecf3920fa7effd960469558e85331e743bdb90569fded1e31ac4c59cf52ec595c |
\Users\Admin\AppData\Local\Temp\teqyi.exe
| MD5 | 19f3cb8899a6f01da4b9ead509b758b3 |
| SHA1 | 011eb917e7b98db1c008436ac3f45002005c01d6 |
| SHA256 | c6c06f215b48b9406481ff073ab4fdacaf95b477b50437f611c01c9edd6ee3b9 |
| SHA512 | f55adfe6337ac24f3772c9768522333e31ccbe4f87e57afa012e04643f6434172eeb4a6fbdc2a3745108d2cd849d6b24abad44ac746601765c3e09296a2b9a1e |
memory/2736-30-0x0000000000400000-0x000000000049F000-memory.dmp
memory/2736-31-0x0000000000400000-0x000000000049F000-memory.dmp
memory/2736-32-0x0000000000400000-0x000000000049F000-memory.dmp
memory/2736-33-0x0000000000400000-0x000000000049F000-memory.dmp
memory/2736-34-0x0000000000400000-0x000000000049F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-11 01:25
Reported
2024-03-11 01:27
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
151s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\juafk.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\bf7a5db5b56489321d405dccc39b0f58.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\juafk.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\devel.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bf7a5db5b56489321d405dccc39b0f58.exe
"C:\Users\Admin\AppData\Local\Temp\bf7a5db5b56489321d405dccc39b0f58.exe"
C:\Users\Admin\AppData\Local\Temp\juafk.exe
"C:\Users\Admin\AppData\Local\Temp\juafk.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_sannuy.bat" "
C:\Users\Admin\AppData\Local\Temp\devel.exe
"C:\Users\Admin\AppData\Local\Temp\devel.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| KR | 218.54.31.226:11120 | tcp | |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| KR | 1.234.83.146:11170 | tcp | |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 174.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 211.135.221.88.in-addr.arpa | udp |
| KR | 218.54.30.235:11120 | tcp | |
| US | 8.8.8.8:53 | 134.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| JP | 133.242.129.155:11120 | tcp | |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 211.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.173.189.20.in-addr.arpa | udp |
Files
memory/2576-0-0x00000000002B0000-0x000000000032C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\juafk.exe
| MD5 | 899ec373e977e110441f1bb378e34215 |
| SHA1 | be504b3ca7ec4419275930a752a0007d59a49032 |
| SHA256 | 45033c2e39a999b6b8bc3a516ed62327c6a6e6058267ced8c77acacf38918484 |
| SHA512 | 69803b4ee6276ad84d60eb604bab95a0d1a2df781cb309b0ba855103361fa538804c659dd7a7e86df28285dd830c890bb44e291dd14e9495a2d6882c3e27a45c |
memory/2576-14-0x00000000002B0000-0x000000000032C000-memory.dmp
memory/3112-12-0x0000000000140000-0x00000000001BC000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_sannuy.bat
| MD5 | 1e0d50a82fc10397abbb7ec39a3b9f44 |
| SHA1 | 16253bb940e51d513f8b6605bfb58c1f10bc8e9a |
| SHA256 | e8ca7f9eafcf0ac65bc881697efb9310becf7f810c0589d9baf5c798b088ce9e |
| SHA512 | 980aca66c367ca6e227c28a3e95cd06f3c91a1f237cdff37f0909af2f4bb3a3e74dac72420c4947e1a3c4c383d79d8ba132161510406216b6a1967afc1db8088 |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 50b0d9db19bf0013425997997232524a |
| SHA1 | 6eef77052529f31179724f7696a5fb61e5713dcc |
| SHA256 | b4650df961e91e1e72d155ec53606658f2cc60e304f94f7df762113c9c369a71 |
| SHA512 | 9551a52a636dcad29943ddc81704a62bfd989ec0bcc5149a1eec06c070e377eab5398e9b6fdbb2c722aee168099d75f3dbf17ebefb1e00e46a86ec365f445600 |
C:\Users\Admin\AppData\Local\Temp\devel.exe
| MD5 | b457a05034a9f75de5f24b75ea42c882 |
| SHA1 | 2e9c3efbd76c41c8d505a3ecea5244916771245b |
| SHA256 | cf1f8c0aab715fa116212d211de27193c79d17e811e4379d01a9d6195394d589 |
| SHA512 | 9709cb923e4c631f41b908cee8c3fd74c66a47439a22c220287cf095f14b6136c6cc6c991434a6a14f497f72c491c61cf5a7c25185829d97a6f584cecffc0670 |
memory/3112-25-0x0000000000140000-0x00000000001BC000-memory.dmp
memory/4336-26-0x0000000000400000-0x000000000049F000-memory.dmp
memory/4336-28-0x0000000000400000-0x000000000049F000-memory.dmp
memory/4336-29-0x0000000000400000-0x000000000049F000-memory.dmp
memory/4336-30-0x0000000000400000-0x000000000049F000-memory.dmp
memory/4336-31-0x0000000000400000-0x000000000049F000-memory.dmp
memory/4336-32-0x0000000000400000-0x000000000049F000-memory.dmp