Analysis Overview
SHA256
b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfc
Threat Level: Known bad
The file b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN was found to be: Known bad.
Malicious Activity Summary
Urelas family
Urelas
Deletes itself
ASPack v2.12-2.42
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
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 10:44
Signatures
Urelas family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-12 10:44
Reported
2024-10-12 10:46
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
96s
Command Line
Signatures
Urelas
ASPack v2.12-2.42
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\byipt.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\mefyro.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\byipt.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mefyro.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\mymij.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\byipt.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\mefyro.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\mymij.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\b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN.exe
"C:\Users\Admin\AppData\Local\Temp\b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN.exe"
C:\Users\Admin\AppData\Local\Temp\byipt.exe
"C:\Users\Admin\AppData\Local\Temp\byipt.exe"
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\mefyro.exe
"C:\Users\Admin\AppData\Local\Temp\mefyro.exe" OK
C:\Users\Admin\AppData\Local\Temp\mymij.exe
"C:\Users\Admin\AppData\Local\Temp\mymij.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| KR | 218.54.31.226:11110 | tcp | |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| KR | 1.234.83.146:11170 | tcp | |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.209.201.84.in-addr.arpa | udp |
| KR | 218.54.31.165:11110 | tcp | |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| JP | 133.242.129.155:11110 | tcp | |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
Files
memory/5032-0-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\byipt.exe
| MD5 | 6f732454c643063f9ee619ab0061c01f |
| SHA1 | 2fbaa15064c15cff0e522445bc0822ad2508f5f3 |
| SHA256 | cf223a1fb37dcacdec47b2c42cb7bf640d34372cf7fc1262547e84640b35c432 |
| SHA512 | 204f2c2f6bbc0bcfd398f5a70f97c69e68f4c591f534c54a0c1420256350d19cd45e1471a6d2dc2c768b139116c31eb934272c67be51442a6614946c12d3f95e |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | eaf71668f015a91f23c2ba9059644553 |
| SHA1 | 4fdd7794ae9a58cab82a61543a92bdd722eea385 |
| SHA256 | 45e60e9a7f9d29ecae3e0b5b9819e8571e5105ed05aacc6e4091610cf5e4950b |
| SHA512 | 4bc93c0764968a0fcb04b90ac04dc700d4149297f0a39b4d63cecf14525bf1e844adfe724bf2cedf66744ae4785158319fea609b4d3591c726b8946f1eb8555d |
memory/5032-14-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | db530785ddab2262c4b5581640b46cb2 |
| SHA1 | 663b49c33e19a146389ca6d2e693c0408d764954 |
| SHA256 | dc4caff8b354ad6a56b0a8f9198240022c7113f18187cc4fb502645c920c5827 |
| SHA512 | 5eb24c783f8890eba38164aed7c54ac2affc27cd766a016e45baec1e10e5f4f6f5751d430ab1e3b3120d46d2245e53e8ddc951c0d0222624b7f1ef47c0229edd |
memory/2944-24-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2448-25-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\mymij.exe
| MD5 | 4380b7f758d66ec62cac8792f64293aa |
| SHA1 | 4375170b2c2229b15a61bbe47bc70db8a64ac597 |
| SHA256 | ec727787f9e08de4b524b5393c69186988c6791e9a07ce493cdb8cecfdfadd03 |
| SHA512 | 39753f609505b5d6e4e6ab535f417c28a90116392cc23a13fc743eaab9d1e03ac65d4f04935a465e00fdb91f67a2982939a9bee6bcaedacc2e28caf21ccd2d44 |
memory/4236-37-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
memory/4236-40-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
memory/4236-41-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
memory/4236-39-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
memory/2448-42-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | 430011d7369ed65c8fc59216e757c56b |
| SHA1 | b75a4cae517a222b4b849d848c716f9b7a7e1e6e |
| SHA256 | 6ede09b00585a266d82a416ee3592aa9a8dfbc101ca768657cfd3fea574c4901 |
| SHA512 | 91c6c99a41833cca170f85fc12e9cdb29630be89e7448ce50f614ae3077015d515e5c3d20623d85d87b41c4fbd3d5a5bea4996756a4c46b9d8aee0fdb5575d4b |
memory/4236-44-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
memory/4236-45-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
memory/4236-46-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
memory/4236-47-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
memory/4236-48-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
memory/4236-49-0x0000000000AD0000-0x0000000000B5C000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-12 10:44
Reported
2024-10-12 10:46
Platform
win7-20240903-en
Max time kernel
149s
Max time network
120s
Command Line
Signatures
Urelas
ASPack v2.12-2.42
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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\ryhog.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dupuyq.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\qybec.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ryhog.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ryhog.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dupuyq.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\b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\ryhog.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\dupuyq.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\qybec.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\b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN.exe
"C:\Users\Admin\AppData\Local\Temp\b8b08b9cd13255e894306d949b7f2cd6b73d95cbc855901987804b7829e8dcfcN.exe"
C:\Users\Admin\AppData\Local\Temp\ryhog.exe
"C:\Users\Admin\AppData\Local\Temp\ryhog.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\_vslite.bat" "
C:\Users\Admin\AppData\Local\Temp\dupuyq.exe
"C:\Users\Admin\AppData\Local\Temp\dupuyq.exe" OK
C:\Users\Admin\AppData\Local\Temp\qybec.exe
"C:\Users\Admin\AppData\Local\Temp\qybec.exe"
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/1992-2-0x0000000000400000-0x0000000000458000-memory.dmp
\Users\Admin\AppData\Local\Temp\ryhog.exe
| MD5 | 8d776cd3bf879803190dfac6c1257fbb |
| SHA1 | b769f14f60d75fd1551bf4b73d51bd071e44b66d |
| SHA256 | 5d674a4a4fb06080918d8e6c090e3817a140bcf275449cd6bfba3119049db851 |
| SHA512 | d72e6dba6f73f8e71b4025b70f22913b796e4274f23f85cecfee8ec3a4b0b5bff2fc81eaa3b5c03f8787ea8e9d23558faef1a5927e85d69e6d9092af40392c4a |
memory/1992-20-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | db530785ddab2262c4b5581640b46cb2 |
| SHA1 | 663b49c33e19a146389ca6d2e693c0408d764954 |
| SHA256 | dc4caff8b354ad6a56b0a8f9198240022c7113f18187cc4fb502645c920c5827 |
| SHA512 | 5eb24c783f8890eba38164aed7c54ac2affc27cd766a016e45baec1e10e5f4f6f5751d430ab1e3b3120d46d2245e53e8ddc951c0d0222624b7f1ef47c0229edd |
memory/1992-11-0x0000000002D20000-0x0000000002D78000-memory.dmp
memory/2448-34-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1844-33-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1844-22-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 7ccc8edf53e39b65926c3c6c78b3517a |
| SHA1 | b5803bae8be4a17fd39b666ccd03df0a51b94b0b |
| SHA256 | 7f91aaf26c84c9aa9403911a2771d9397866034736740bd76bca52872d40e852 |
| SHA512 | 0778074f5ac2c223d1114c5f83dcb9776194015429ae49ec5e743f461ecb4cbdeeac160cfdfd37290caf61d698a597389850daf87bdda816214122e176c5dc92 |
memory/2448-36-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_vslite.bat
| MD5 | 10e5901aceb22831a0d6c0425a463e7f |
| SHA1 | cea80cfe5700f84b0048d077396da7defdd78aee |
| SHA256 | 1d7cf65f75cefb45e35681ec3627234f8fcf60aa6a5d57adde1eb2da9498300b |
| SHA512 | 7a25605fe4b09917e6555eb8250e1a172f129fb2383be04d38b64588c180a9576da113d5c2c7b0f6639ebaf0f9ee478357c5315d93a729f9f0d46c3459b00a0e |
\Users\Admin\AppData\Local\Temp\qybec.exe
| MD5 | ec22cb2b2d53b33d73c670c5d6f06ad1 |
| SHA1 | e0311a487cf70bedd02fb80ce799024c1a0e0091 |
| SHA256 | dc1cdb8fc1d89d2c33cd754c15fe9ca73e007d9e0f6b78dfa1997c0f11c0bd43 |
| SHA512 | 98f8c30da1f525af4a3ce94d9d5ae520f5aa6f69d06db1a67f1ca2b58f451d13acc820c98943d843c2a908893206084db2fa3dc39e13682fb06c4f2a64511431 |
memory/1400-56-0x00000000013E0000-0x000000000146C000-memory.dmp
memory/1400-55-0x00000000013E0000-0x000000000146C000-memory.dmp
memory/1400-54-0x00000000013E0000-0x000000000146C000-memory.dmp
memory/1400-53-0x00000000013E0000-0x000000000146C000-memory.dmp
memory/2448-52-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1400-59-0x00000000013E0000-0x000000000146C000-memory.dmp
memory/1400-60-0x00000000013E0000-0x000000000146C000-memory.dmp
memory/1400-61-0x00000000013E0000-0x000000000146C000-memory.dmp
memory/1400-62-0x00000000013E0000-0x000000000146C000-memory.dmp
memory/1400-63-0x00000000013E0000-0x000000000146C000-memory.dmp
memory/1400-64-0x00000000013E0000-0x000000000146C000-memory.dmp