Analysis Overview
SHA256
502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2
Threat Level: Shows suspicious behavior
The file 502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N 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
Adds Run key to start application
Writes to the Master Boot Record (MBR)
Enumerates connected drives
UPX packed file
Drops file in Program Files directory
Unsigned PE
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
Runs ping.exe
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-09 22:36
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 22:36
Reported
2024-11-09 22:38
Platform
win7-20240903-en
Max time kernel
112s
Max time network
115s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\blyrp.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\blyrp.exe | N/A |
| N/A | N/A | \??\c:\Program Files\kenqwvs\fvnqy.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\blyrp.exe | N/A |
| N/A | N/A | \??\c:\Program Files\kenqwvs\fvnqy.exe | N/A |
| N/A | N/A | \??\c:\Program Files\kenqwvs\fvnqy.exe | N/A |
| N/A | N/A | \??\c:\Program Files\kenqwvs\fvnqy.exe | N/A |
| N/A | N/A | \??\c:\Program Files\kenqwvs\fvnqy.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\HTML = "c:\\Program Files\\kenqwvs\\fvnqy.exe \"c:\\Program Files\\kenqwvs\\fvnqy.dll\",PraseHTML" | \??\c:\Program Files\kenqwvs\fvnqy.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\kenqwvs\fvnqy.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | \??\c:\Program Files\kenqwvs\fvnqy.exe | C:\Users\Admin\AppData\Local\Temp\blyrp.exe | N/A |
| File opened for modification | \??\c:\Program Files\kenqwvs\fvnqy.exe | C:\Users\Admin\AppData\Local\Temp\blyrp.exe | N/A |
| File opened for modification | \??\c:\Program Files\kenqwvs | C:\Users\Admin\AppData\Local\Temp\blyrp.exe | N/A |
| File created | \??\c:\Program Files\kenqwvs\fvnqy.dll | C:\Users\Admin\AppData\Local\Temp\blyrp.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | \??\c:\Program Files\kenqwvs\fvnqy.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.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:\Windows\SysWOW64\PING.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\blyrp.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\kenqwvs\fvnqy.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | \??\c:\Program Files\kenqwvs\fvnqy.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\kenqwvs\fvnqy.exe | N/A |
| N/A | N/A | \??\c:\Program Files\kenqwvs\fvnqy.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | \??\c:\Program Files\kenqwvs\fvnqy.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\blyrp.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe
"C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\blyrp.exe "C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\blyrp.exe
C:\Users\Admin\AppData\Local\Temp\\blyrp.exe "C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe"
\??\c:\Program Files\kenqwvs\fvnqy.exe
"c:\Program Files\kenqwvs\fvnqy.exe" "c:\Program Files\kenqwvs\fvnqy.dll",PraseHTML C:\Users\Admin\AppData\Local\Temp\blyrp.exe
Network
| Country | Destination | Domain | Proto |
| KR | 107.163.56.238:18530 | tcp | |
| US | 107.163.43.143:12388 | 107.163.43.143 | tcp |
| KR | 107.163.56.238:18530 | 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
\Users\Admin\AppData\Local\Temp\blyrp.exe
| MD5 | 86e3636e7ccdea6c2c6b433b9b1e8e46 |
| SHA1 | 76e83444688d9360c1db09db2e33022c2d7b4cde |
| SHA256 | bd8b876e3b8fa788e4b96d716877d0cf5de7adf22dee39a5beba3ac99e8157f7 |
| SHA512 | cc1dccdd9103212448e46e4130f72ed9a340de02a255cbdc602b3ef014c3e97f5482fefafca9f34fdfd3d07fd786badf47284654c7b1a5d24996417c95e6cda1 |
\Program Files\kenqwvs\fvnqy.exe
| MD5 | 51138beea3e2c21ec44d0932c71762a8 |
| SHA1 | 8939cf35447b22dd2c6e6f443446acc1bf986d58 |
| SHA256 | 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124 |
| SHA512 | 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d |
\??\c:\Program Files\kenqwvs\fvnqy.dll
| MD5 | c18b359939cb256aae67caf16013807f |
| SHA1 | cd19573fd95d1ae14a823d5b7023b72f6d4d2b07 |
| SHA256 | 49998baf9eac51e3e2da30fc4161b7025bcd4ac22251ea67824424fbf13f0d18 |
| SHA512 | 8926204bb802c4b1fb954532953213dc96517f90172a46eda39edc802078222a3e5201b4a8cb2de7c3ad7c4ec135e00dfc04275f4394aa0003e50ba32426e04f |
memory/2648-19-0x0000000010000000-0x0000000010083000-memory.dmp
memory/2648-18-0x0000000010000000-0x0000000010083000-memory.dmp
memory/2648-16-0x0000000010000000-0x0000000010083000-memory.dmp
memory/2648-24-0x0000000010000000-0x0000000010083000-memory.dmp
memory/2648-27-0x0000000010000000-0x0000000010083000-memory.dmp
memory/2648-26-0x0000000010000000-0x0000000010083000-memory.dmp
memory/2648-25-0x0000000010001000-0x0000000010022000-memory.dmp
memory/2648-28-0x0000000010000000-0x0000000010083000-memory.dmp
memory/2648-33-0x0000000010000000-0x0000000010083000-memory.dmp
memory/2648-35-0x0000000010000000-0x0000000010083000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 22:36
Reported
2024-11-09 22:38
Platform
win10v2004-20241007-en
Max time kernel
111s
Max time network
121s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\acdrz.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\acdrz.exe | N/A |
| N/A | N/A | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | \??\c:\Program Files\cexfox\jqxx.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HTML = "c:\\Program Files\\cexfox\\jqxx.exe \"c:\\Program Files\\cexfox\\jqxxq.dll\",PraseHTML" | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\n: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\p: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\q: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\s: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\a: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\b: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\e: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\k: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\t: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\r: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\w: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\y: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\j: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\l: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\m: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\o: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\h: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\i: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\u: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\v: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\g: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\x: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| File opened (read-only) | \??\z: | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PHYSICALDRIVE0 | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\Program Files\cexfox | C:\Users\Admin\AppData\Local\Temp\acdrz.exe | N/A |
| File created | \??\c:\Program Files\cexfox\jqxxq.dll | C:\Users\Admin\AppData\Local\Temp\acdrz.exe | N/A |
| File created | \??\c:\Program Files\cexfox\jqxx.exe | C:\Users\Admin\AppData\Local\Temp\acdrz.exe | N/A |
| File opened for modification | \??\c:\Program Files\cexfox\jqxx.exe | C:\Users\Admin\AppData\Local\Temp\acdrz.exe | N/A |
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\acdrz.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.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:\Windows\SysWOW64\PING.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\cexfox\jqxx.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | \??\c:\Program Files\cexfox\jqxx.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\cexfox\jqxx.exe | N/A |
| N/A | N/A | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| N/A | N/A | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
| N/A | N/A | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | \??\c:\Program Files\cexfox\jqxx.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\acdrz.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe
"C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe"
C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\acdrz.exe "C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
C:\Users\Admin\AppData\Local\Temp\acdrz.exe
C:\Users\Admin\AppData\Local\Temp\\acdrz.exe "C:\Users\Admin\AppData\Local\Temp\502d83e8243537e0da988d8afef1b20e58ad89182425e67a7f59d258c8c751f2N.exe"
\??\c:\Program Files\cexfox\jqxx.exe
"c:\Program Files\cexfox\jqxx.exe" "c:\Program Files\cexfox\jqxxq.dll",PraseHTML C:\Users\Admin\AppData\Local\Temp\acdrz.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| KR | 107.163.56.238:18530 | 107.163.56.238 | tcp |
| US | 8.8.8.8:53 | 238.56.163.107.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 107.163.43.143:12388 | tcp | |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.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 | 88.210.23.2.in-addr.arpa | udp |
| KR | 107.163.56.239:18963 | tcp | |
| KR | 107.163.56.251:6658 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\acdrz.exe
| MD5 | 631804d141e2b343abb16ff07c97e03b |
| SHA1 | 1132269fd8d83b7d17b5344d0cdd2374f35bcbc7 |
| SHA256 | a393ce9c280228d4b5e2d985e9bc3e240d8607477d43629ec868a9bf84d004c9 |
| SHA512 | c38e6c083da0301989d7a0308e173fbc69212f82e6dd85b238c79da28537919dffc4ef89914b6796284f9c08d1b9142e328deb90195638ded6390728bb978b77 |
C:\Program Files\cexfox\jqxx.exe
| MD5 | 889b99c52a60dd49227c5e485a016679 |
| SHA1 | 8fa889e456aa646a4d0a4349977430ce5fa5e2d7 |
| SHA256 | 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910 |
| SHA512 | 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641 |
\??\c:\Program Files\cexfox\jqxxq.dll
| MD5 | 8ea6891ca69db507ea0aed04ad1ba2dd |
| SHA1 | ae370068ad6988679af9c4da4ea653c66b66b249 |
| SHA256 | be942def1db6b710fac44aa1eebe88acf33d0d569081f38e820aa99d88a11607 |
| SHA512 | 83258891be477ea5a0127d957b9fcdb9f9ac47e1f5940cdfeab0b324c522d51a2d0515b2a6571f8dc1a25e07d05e34b33bf67b45e6bc179cfb47a3b27c228edf |
memory/4772-15-0x0000000010000000-0x0000000010083000-memory.dmp
memory/4772-17-0x0000000010000000-0x0000000010083000-memory.dmp
memory/4772-18-0x0000000010000000-0x0000000010083000-memory.dmp
memory/4772-16-0x0000000010001000-0x0000000010022000-memory.dmp
memory/4772-11-0x0000000010000000-0x0000000010083000-memory.dmp
memory/4772-19-0x0000000010000000-0x0000000010083000-memory.dmp
memory/4772-23-0x0000000010000000-0x0000000010083000-memory.dmp
memory/4772-26-0x0000000010000000-0x0000000010083000-memory.dmp
memory/4772-30-0x0000000010000000-0x0000000010083000-memory.dmp