Analysis Overview
SHA256
3c476ad15acd041a55c25fe36c6eb40b5f4112d3bb5bc36ca1c619a9269c20bc
Threat Level: Known bad
The file 121c8d638b96a43eb3c2fb623e467536.exe was found to be: Known bad.
Malicious Activity Summary
NyMaim
Deletes itself
Checks computer location settings
Program crash
Enumerates physical storage devices
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-12-29 12:16
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-12-29 12:16
Reported
2022-12-29 12:18
Platform
win7-20220812-en
Max time kernel
43s
Max time network
46s
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 560 wrote to memory of 892 | N/A | C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 560 wrote to memory of 892 | N/A | C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 560 wrote to memory of 892 | N/A | C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 560 wrote to memory of 892 | N/A | C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 892 wrote to memory of 268 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 892 wrote to memory of 268 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 892 wrote to memory of 268 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 892 wrote to memory of 268 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe
"C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "121c8d638b96a43eb3c2fb623e467536.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "121c8d638b96a43eb3c2fb623e467536.exe" /f
Network
| Country | Destination | Domain | Proto |
| N/A | 45.139.105.171:80 | 45.139.105.171 | tcp |
Files
memory/560-54-0x0000000076041000-0x0000000076043000-memory.dmp
memory/560-56-0x0000000000220000-0x0000000000260000-memory.dmp
memory/560-55-0x000000000062A000-0x0000000000650000-memory.dmp
memory/560-57-0x0000000000400000-0x0000000000462000-memory.dmp
memory/892-58-0x0000000000000000-mapping.dmp
memory/560-59-0x000000000062A000-0x0000000000650000-memory.dmp
memory/560-60-0x0000000000400000-0x0000000000462000-memory.dmp
memory/268-61-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-12-29 12:16
Reported
2022-12-29 12:18
Platform
win10v2004-20220812-en
Max time kernel
142s
Max time network
148s
Command Line
Signatures
NyMaim
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.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 2268 wrote to memory of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2268 wrote to memory of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2268 wrote to memory of 2760 | N/A | C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2760 wrote to memory of 1268 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2760 wrote to memory of 1268 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 2760 wrote to memory of 1268 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe
"C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2268 -ip 2268
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 456
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 2268 -ip 2268
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2268 -ip 2268
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 812
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2268 -ip 2268
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 812
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2268 -ip 2268
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2268 -ip 2268
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 2268 -ip 2268
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 1020
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 608 -p 2268 -ip 2268
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 1088
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 624 -p 2268 -ip 2268
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 1356
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "121c8d638b96a43eb3c2fb623e467536.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\121c8d638b96a43eb3c2fb623e467536.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 652 -p 2268 -ip 2268
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "121c8d638b96a43eb3c2fb623e467536.exe" /f
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 468
Network
| Country | Destination | Domain | Proto |
| N/A | 209.197.3.8:80 | tcp | |
| N/A | 93.184.220.29:80 | tcp | |
| N/A | 45.139.105.171:80 | 45.139.105.171 | tcp |
| N/A | 95.101.78.82:80 | tcp | |
| N/A | 95.101.78.82:80 | tcp | |
| N/A | 104.80.225.205:443 | tcp | |
| N/A | 51.11.192.48:443 | tcp | |
| N/A | 209.197.3.8:80 | tcp | |
| N/A | 209.197.3.8:80 | tcp | |
| N/A | 209.197.3.8:80 | tcp |
Files
memory/2268-132-0x00000000005B7000-0x00000000005DE000-memory.dmp
memory/2268-133-0x00000000008E0000-0x0000000000920000-memory.dmp
memory/2268-134-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2760-135-0x0000000000000000-mapping.dmp
memory/1268-136-0x0000000000000000-mapping.dmp
memory/2268-137-0x00000000005B7000-0x00000000005DE000-memory.dmp
memory/2268-138-0x0000000000400000-0x0000000000462000-memory.dmp