Analysis Overview
SHA256
3130ae5c7eb9359f37503eae4d9e163031db1cf5cf39b1cf353fefda5e037ed8
Threat Level: Known bad
The file 4f8aaa32c25c0df6e6d6b07147fe2210.exe was found to be: Known bad.
Malicious Activity Summary
NyMaim
Deletes itself
Checks computer location settings
Enumerates physical storage devices
Program crash
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 12:13
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-12-29 12:13
Reported
2022-12-29 12:15
Platform
win7-20221111-en
Max time kernel
28s
Max time network
31s
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 1784 wrote to memory of 592 | N/A | C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1784 wrote to memory of 592 | N/A | C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1784 wrote to memory of 592 | N/A | C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1784 wrote to memory of 592 | N/A | C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 592 wrote to memory of 608 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 592 wrote to memory of 608 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 592 wrote to memory of 608 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 592 wrote to memory of 608 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe
"C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "4f8aaa32c25c0df6e6d6b07147fe2210.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "4f8aaa32c25c0df6e6d6b07147fe2210.exe" /f
Network
| Country | Destination | Domain | Proto |
| N/A | 45.139.105.171:80 | 45.139.105.171 | tcp |
Files
memory/1784-54-0x00000000767F1000-0x00000000767F3000-memory.dmp
memory/1784-55-0x000000000055A000-0x0000000000580000-memory.dmp
memory/1784-56-0x0000000000220000-0x0000000000260000-memory.dmp
memory/1784-57-0x0000000000400000-0x0000000000468000-memory.dmp
memory/592-58-0x0000000000000000-mapping.dmp
memory/1784-59-0x0000000000400000-0x0000000000468000-memory.dmp
memory/608-60-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-12-29 12:13
Reported
2022-12-29 12:15
Platform
win10v2004-20220901-en
Max time kernel
90s
Max time network
151s
Command Line
Signatures
NyMaim
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.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 3912 wrote to memory of 4216 | N/A | C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3912 wrote to memory of 4216 | N/A | C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3912 wrote to memory of 4216 | N/A | C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4216 wrote to memory of 4740 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4216 wrote to memory of 4740 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 4216 wrote to memory of 4740 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe
"C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3912 -ip 3912
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 452
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3912 -ip 3912
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3912 -ip 3912
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 784
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3912 -ip 3912
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3912 -ip 3912
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 836
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 3912 -ip 3912
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 928
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3912 -ip 3912
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 1008
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3912 -ip 3912
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 1360
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "4f8aaa32c25c0df6e6d6b07147fe2210.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4f8aaa32c25c0df6e6d6b07147fe2210.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3912 -ip 3912
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3912 -s 1396
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "4f8aaa32c25c0df6e6d6b07147fe2210.exe" /f
Network
| Country | Destination | Domain | Proto |
| N/A | 45.139.105.171:80 | 45.139.105.171 | tcp |
| N/A | 20.42.65.84:443 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 93.184.221.240:80 | tcp | |
| N/A | 104.80.229.204:443 | tcp |
Files
memory/3912-132-0x00000000004C7000-0x00000000004EE000-memory.dmp
memory/3912-133-0x00000000008D0000-0x0000000000910000-memory.dmp
memory/3912-134-0x0000000000400000-0x0000000000468000-memory.dmp
memory/4216-135-0x0000000000000000-mapping.dmp
memory/4740-136-0x0000000000000000-mapping.dmp
memory/3912-137-0x00000000004C7000-0x00000000004EE000-memory.dmp
memory/3912-138-0x0000000000400000-0x0000000000468000-memory.dmp