Analysis Overview
SHA256
c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0
Threat Level: Shows suspicious behavior
The file c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N was found to be: Shows suspicious behavior.
Malicious Activity Summary
Loads dropped DLL
Reads user/profile data of web browsers
Deletes itself
Executes dropped EXE
Writes to the Master Boot Record (MBR)
Adds Run key to start application
Enumerates connected drives
Drops file in Program Files directory
Unsigned PE
System Network Configuration Discovery: Internet Connection Discovery
System Location Discovery: System Language Discovery
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Runs ping.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-17 00:42
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-17 00:42
Reported
2024-10-17 00:44
Platform
win7-20240903-en
Max time kernel
99s
Max time network
111s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\yjicv.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\yjicv.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\yjicv.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\esf = "c:\\Program Files\\jbach\\qwzasdxl.exe \"c:\\Program Files\\jbach\\qwzasdxl.dll\",EnumSourceFiles" | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
Enumerates connected drives
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PHYSICALDRIVE0 | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\Program Files\jbach\qwzasdxl.exe | C:\Users\Admin\AppData\Local\Temp\yjicv.exe | N/A |
| File opened for modification | \??\c:\Program Files\jbach | C:\Users\Admin\AppData\Local\Temp\yjicv.exe | N/A |
| File created | \??\c:\Program Files\jbach\qwzasdxl.dll | C:\Users\Admin\AppData\Local\Temp\yjicv.exe | N/A |
| File created | \??\c:\Program Files\jbach\qwzasdxl.exe | C:\Users\Admin\AppData\Local\Temp\yjicv.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| 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:\Windows\SysWOW64\PING.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\yjicv.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe | N/A |
System Network Configuration Discovery: Internet Connection Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | \??\c:\Program Files\jbach\qwzasdxl.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\yjicv.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe
"C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\yjicv.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\yjicv.exe
C:\Users\Admin\AppData\Local\Temp\\yjicv.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
\??\c:\Program Files\jbach\qwzasdxl.exe
"c:\Program Files\jbach\qwzasdxl.exe" "c:\Program Files\jbach\qwzasdxl.dll",EnumSourceFiles C:\Users\Admin\AppData\Local\Temp\yjicv.exe
Network
| Country | Destination | Domain | Proto |
| KR | 107.163.56.237:18530 | 107.163.56.237 | tcp |
| KR | 107.163.56.109:18530 | 107.163.56.109 | tcp |
| KR | 107.163.56.251:6658 | tcp | |
| KR | 107.163.56.239:18963 | tcp | |
| KR | 107.163.56.239:18963 | tcp | |
| KR | 107.163.56.239:18963 | tcp | |
| KR | 107.163.56.239:18963 | tcp | |
| KR | 107.163.56.251:6658 | tcp | |
| KR | 107.163.56.251:6658 | tcp |
Files
memory/2216-0-0x0000000000400000-0x0000000000481C34-memory.dmp
memory/2216-2-0x0000000000400000-0x0000000000481C34-memory.dmp
\Users\Admin\AppData\Local\Temp\yjicv.exe
| MD5 | 12be8f35c4f90f40b5f38bce66940645 |
| SHA1 | b777c8b5ab57e7b9cb45187fef6ccbf1044daf08 |
| SHA256 | 7aac44a964781c78a20e7852e90adf5b86d76c3359be76cb9614ed6754ecc648 |
| SHA512 | e3e96a01da2f288306e2db675ca42c018fd2e7c45ba0dd5f3eee0254a52244d508ec21376e80b1dd1f0b9c95703236385360a29a94582bb2129dea79975704f8 |
memory/2248-6-0x0000000002300000-0x0000000002382000-memory.dmp
memory/2904-9-0x0000000000400000-0x0000000000481C34-memory.dmp
memory/2248-7-0x0000000002300000-0x0000000002382000-memory.dmp
\Program Files\jbach\qwzasdxl.exe
| MD5 | 51138beea3e2c21ec44d0932c71762a8 |
| SHA1 | 8939cf35447b22dd2c6e6f443446acc1bf986d58 |
| SHA256 | 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124 |
| SHA512 | 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d |
memory/2904-16-0x0000000000400000-0x0000000000481C34-memory.dmp
\??\c:\Program Files\jbach\qwzasdxl.dll
| MD5 | 74c8c7a666c4e469293a550b1857f20a |
| SHA1 | 94b9e07949a110ffc9699abcbe11de507fe0e3a2 |
| SHA256 | ea7f06dc8839b51acdf069b61fc17aa8ddab884b192588c62295a89126882d54 |
| SHA512 | 0a3d5a1e00dba435a81b3f7fc1592b95c00f5577f6ae4e991758c7d1cd2e52b8ce6081bd5daec022629aabf3118457f4e2188c16ab88b61de86fc7580fc066c5 |
memory/2560-24-0x0000000010000000-0x0000000010076000-memory.dmp
memory/2560-23-0x0000000010000000-0x0000000010076000-memory.dmp
memory/2560-25-0x0000000010000000-0x0000000010076000-memory.dmp
memory/2560-28-0x0000000010000000-0x0000000010076000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-17 00:42
Reported
2024-10-17 00:44
Platform
win10v2004-20241007-en
Max time kernel
113s
Max time network
112s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vhcis.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vhcis.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
Reads user/profile data of web browsers
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\esf = "c:\\Program Files\\jwuuu\\mnuuihmkm.exe \"c:\\Program Files\\jwuuu\\mnuuihmkm.dll\",EnumSourceFiles" | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
Enumerates connected drives
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PHYSICALDRIVE0 | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | C:\Users\Admin\AppData\Local\Temp\vhcis.exe | N/A |
| File opened for modification | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | C:\Users\Admin\AppData\Local\Temp\vhcis.exe | N/A |
| File opened for modification | \??\c:\Program Files\jwuuu | C:\Users\Admin\AppData\Local\Temp\vhcis.exe | N/A |
| File created | \??\c:\Program Files\jwuuu\mnuuihmkm.dll | C:\Users\Admin\AppData\Local\Temp\vhcis.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\PING.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\vhcis.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
System Network Configuration Discovery: Internet Connection Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
| N/A | N/A | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | \??\c:\Program Files\jwuuu\mnuuihmkm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\vhcis.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe
"C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vhcis.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\vhcis.exe
C:\Users\Admin\AppData\Local\Temp\\vhcis.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
\??\c:\Program Files\jwuuu\mnuuihmkm.exe
"c:\Program Files\jwuuu\mnuuihmkm.exe" "c:\Program Files\jwuuu\mnuuihmkm.dll",EnumSourceFiles C:\Users\Admin\AppData\Local\Temp\vhcis.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 28.118.140.52.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 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| KR | 107.163.56.237:18530 | tcp | |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| KR | 107.163.56.109:18530 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| KR | 107.163.56.251:6658 | tcp | |
| US | 8.8.8.8:53 | 251.56.163.107.in-addr.arpa | udp |
| KR | 107.163.56.239:18963 | 107.163.56.239 | tcp |
| KR | 107.163.56.239:18963 | 107.163.56.239 | tcp |
| US | 8.8.8.8:53 | 239.56.163.107.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| KR | 107.163.56.239:18963 | tcp | |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| KR | 107.163.56.251:6658 | tcp | |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
Files
memory/1872-0-0x0000000000400000-0x0000000000481C34-memory.dmp
memory/1872-2-0x0000000000400000-0x0000000000481C34-memory.dmp
C:\Users\Admin\AppData\Local\Temp\vhcis.exe
| MD5 | 29bf6a60045085f25f007815281fa750 |
| SHA1 | 83791db40f7113d76d22cb246477b2b2797620f8 |
| SHA256 | 0fcadc1a3e25685ce366503f6c99f01ec267e9ff23c9ee4e6395b31f4855da8b |
| SHA512 | 6cdc55a12e34b35ce784eb7c88297bd04ec83ec766413c33b0c200db11282c9a9eeb3a35bc5bd8480b8ce1fde6af6246fe285cd40a4c91cd1342fbee10e862e6 |
C:\Program Files\jwuuu\mnuuihmkm.exe
| MD5 | 889b99c52a60dd49227c5e485a016679 |
| SHA1 | 8fa889e456aa646a4d0a4349977430ce5fa5e2d7 |
| SHA256 | 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910 |
| SHA512 | 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641 |
memory/1760-10-0x0000000000400000-0x0000000000481C34-memory.dmp
\??\c:\Program Files\jwuuu\mnuuihmkm.dll
| MD5 | 934d96d55b33424ca1ca2920a6b7b8cd |
| SHA1 | 4ef50658d97ebc5c84929bbd35cf0741549395b1 |
| SHA256 | b203a2cbbc2eda8b6ae588c1d1e2f59eb39297fd261c4de93f75921d48ad2301 |
| SHA512 | 6ac311c44af3f72fdc1d6f9e2d3d17959064db727d2f3e9b5b61e863850cf3e6543010e5c801647dbe6a82ca0c8755186a9d595c4a0eba1347dbb45bd8894c32 |
memory/212-14-0x0000000010000000-0x0000000010076000-memory.dmp
memory/212-15-0x0000000010000000-0x0000000010076000-memory.dmp
memory/212-18-0x0000000010000000-0x0000000010076000-memory.dmp