Analysis Overview
SHA256
f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c
Threat Level: Shows suspicious behavior
The file f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c was found to be: Shows suspicious behavior.
Malicious Activity Summary
Deletes itself
Checks computer location settings
Executes dropped EXE
Indicator Removal: File Deletion
UPX packed file
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Checks processor information in registry
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-13 04:12
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
2024-11-13 04:12
Reported
2024-11-13 04:14
Platform
win7-20241010-en
Max time kernel
141s
Max time network
124s
Command Line
Signatures
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:\Windows\Debug\zskhost.exe | N/A |
Indicator Removal: File Deletion
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 |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Debug\zskhost.exe | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | N/A |
| File opened for modification | C:\Windows\Debug\zskhost.exe | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.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\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Debug\zskhost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\Debug\zskhost.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\Debug\zskhost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1304 wrote to memory of 768 | N/A | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1304 wrote to memory of 768 | N/A | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1304 wrote to memory of 768 | N/A | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1304 wrote to memory of 768 | N/A | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe
"C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe"
C:\Windows\Debug\zskhost.exe
C:\Windows\Debug\zskhost.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F43358~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.baidu.com | udp |
| HK | 103.235.46.96:80 | www.baidu.com | tcp |
| US | 8.8.8.8:53 | l2xz04Kftq.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | Li8m2nmd4.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | vPpL30HuNI.nnnn.eu.org | udp |
Files
memory/1304-0-0x0000000000400000-0x000000000040F000-memory.dmp
C:\Windows\debug\zskhost.exe
| MD5 | f80959aadce7414ba415ce79790289d0 |
| SHA1 | a71a1dbad49fcb4a9b65f98a2f15c67b8ac3f5ae |
| SHA256 | ed013b3fa5f69de301072cc426adf49d370667acd71732a2b0f53f741cd64e5d |
| SHA512 | 5256a4d6a84390fa2fddab33a340849d4240ac2cc50f4a045a798c7f63cbdc18db493ce815d5112663eed807c259f4ab68a05f3f318b32658f4539c8c21830be |
memory/1304-4-0x0000000000400000-0x000000000040F000-memory.dmp
memory/1612-5-0x0000000000400000-0x000000000040F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 04:12
Reported
2024-11-13 04:14
Platform
win10v2004-20241007-en
Max time kernel
141s
Max time network
139s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Debug\dcihost.exe | N/A |
Indicator Removal: File Deletion
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 |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\Debug\dcihost.exe | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | N/A |
| File opened for modification | C:\Windows\Debug\dcihost.exe | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.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\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Debug\dcihost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\Debug\dcihost.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\Debug\dcihost.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3932 wrote to memory of 2932 | N/A | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3932 wrote to memory of 2932 | N/A | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3932 wrote to memory of 2932 | N/A | C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe
"C:\Users\Admin\AppData\Local\Temp\f433583b8b05b7435a7035edf72dfdc47570b35183aed304abc69b4bab3d4b1c.exe"
C:\Windows\Debug\dcihost.exe
C:\Windows\Debug\dcihost.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F43358~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.baidu.com | udp |
| HK | 103.235.46.96:80 | www.baidu.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 96.46.235.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | l2xz04Kftq.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | Li8m2nmd4.nnnn.eu.org | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vPpL30HuNI.nnnn.eu.org | udp |
Files
memory/3932-0-0x0000000000400000-0x000000000040F000-memory.dmp
C:\Windows\debug\dcihost.exe
| MD5 | f80959aadce7414ba415ce79790289d0 |
| SHA1 | a71a1dbad49fcb4a9b65f98a2f15c67b8ac3f5ae |
| SHA256 | ed013b3fa5f69de301072cc426adf49d370667acd71732a2b0f53f741cd64e5d |
| SHA512 | 5256a4d6a84390fa2fddab33a340849d4240ac2cc50f4a045a798c7f63cbdc18db493ce815d5112663eed807c259f4ab68a05f3f318b32658f4539c8c21830be |
memory/3932-5-0x0000000000400000-0x000000000040F000-memory.dmp
memory/4528-6-0x0000000000400000-0x000000000040F000-memory.dmp