Analysis Overview
SHA256
f3a7d831c9fa8577a6dffae63ca18f8c05274b49a5a0f3a6091165fe1a212d85
Threat Level: Known bad
The file 8cb2f80304f1f188fb8769e9ba089a1f.exe was found to be: Known bad.
Malicious Activity Summary
NyMaim
Checks computer location settings
Deletes itself
Program crash
Enumerates physical storage devices
Kills process with taskkill
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-12-29 12:17
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-12-29 12:17
Reported
2022-12-29 12:19
Platform
win7-20220812-en
Max time kernel
43s
Max time network
45s
Command Line
Signatures
NyMaim
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Enumerates physical storage devices
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1808 wrote to memory of 1996 | N/A | C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1808 wrote to memory of 1996 | N/A | C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1808 wrote to memory of 1996 | N/A | C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1808 wrote to memory of 1996 | N/A | C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1996 wrote to memory of 1780 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1996 wrote to memory of 1780 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1996 wrote to memory of 1780 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1996 wrote to memory of 1780 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe
"C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "8cb2f80304f1f188fb8769e9ba089a1f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "8cb2f80304f1f188fb8769e9ba089a1f.exe" /f
Network
Files
memory/1808-54-0x0000000076171000-0x0000000076173000-memory.dmp
memory/1996-55-0x0000000000000000-mapping.dmp
memory/1808-56-0x000000000064B000-0x0000000000672000-memory.dmp
memory/1808-57-0x0000000000220000-0x0000000000260000-memory.dmp
memory/1808-58-0x0000000000400000-0x0000000000473000-memory.dmp
memory/1780-59-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-12-29 12:17
Reported
2022-12-29 12:19
Platform
win10v2004-20221111-en
Max time kernel
90s
Max time network
153s
Command Line
Signatures
NyMaim
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe | N/A |
Enumerates physical storage devices
Program crash
Kills process with taskkill
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\taskkill.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 528 wrote to memory of 4360 | N/A | C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 528 wrote to memory of 4360 | N/A | C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 528 wrote to memory of 4360 | N/A | C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4360 wrote to memory of 3588 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4360 wrote to memory of 3588 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4360 wrote to memory of 3588 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe
"C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 528 -ip 528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 684
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 528 -ip 528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 736
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 528 -ip 528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 528 -ip 528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 528 -ip 528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 792
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 528 -ip 528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 972
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "8cb2f80304f1f188fb8769e9ba089a1f.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8cb2f80304f1f188fb8769e9ba089a1f.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 528 -ip 528
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "8cb2f80304f1f188fb8769e9ba089a1f.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 1156
Network
| Country | Destination | Domain | Proto |
| N/A | 104.80.225.205:443 | tcp | |
| N/A | 52.168.117.170:443 | tcp | |
| N/A | 8.238.21.126:80 | tcp | |
| N/A | 8.238.21.126:80 | tcp |
Files
memory/528-132-0x00000000006D8000-0x00000000006FF000-memory.dmp
memory/528-133-0x0000000000610000-0x0000000000650000-memory.dmp
memory/528-134-0x0000000000400000-0x0000000000473000-memory.dmp
memory/4360-135-0x0000000000000000-mapping.dmp
memory/3588-136-0x0000000000000000-mapping.dmp
memory/528-137-0x00000000006D8000-0x00000000006FF000-memory.dmp
memory/528-138-0x0000000000610000-0x0000000000650000-memory.dmp
memory/528-139-0x0000000000400000-0x0000000000473000-memory.dmp