Analysis Overview
SHA256
80e0fad3bd2c2640bcb4aa073e7195a8fac77ac92b1085ca71cf975da3de6f9d
Threat Level: Known bad
The file 3a4fc843fea55ee700af9ca739e690e0.exe was found to be: Known bad.
Malicious Activity Summary
NyMaim
Checks computer location settings
Deletes itself
Program crash
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-12-29 12:14
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-12-29 12:14
Reported
2022-12-29 12:16
Platform
win7-20220812-en
Max time kernel
42s
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 816 wrote to memory of 1932 | N/A | C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 816 wrote to memory of 1932 | N/A | C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 816 wrote to memory of 1932 | N/A | C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 816 wrote to memory of 1932 | N/A | C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1932 wrote to memory of 1264 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1932 wrote to memory of 1264 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1932 wrote to memory of 1264 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1932 wrote to memory of 1264 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe
"C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "3a4fc843fea55ee700af9ca739e690e0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe" & exit
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "3a4fc843fea55ee700af9ca739e690e0.exe" /f
Network
| Country | Destination | Domain | Proto |
| N/A | 45.139.105.171:80 | 45.139.105.171 | tcp |
Files
memory/816-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
memory/816-56-0x0000000000220000-0x0000000000260000-memory.dmp
memory/816-55-0x000000000054A000-0x0000000000570000-memory.dmp
memory/816-57-0x0000000000400000-0x0000000000462000-memory.dmp
memory/816-59-0x000000000054A000-0x0000000000570000-memory.dmp
memory/1932-58-0x0000000000000000-mapping.dmp
memory/816-60-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1264-61-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-12-29 12:14
Reported
2022-12-29 12:16
Platform
win10v2004-20221111-en
Max time kernel
98s
Max time network
153s
Command Line
Signatures
NyMaim
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.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 3528 wrote to memory of 1580 | N/A | C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3528 wrote to memory of 1580 | N/A | C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3528 wrote to memory of 1580 | N/A | C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1580 wrote to memory of 3052 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1580 wrote to memory of 3052 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
| PID 1580 wrote to memory of 3052 | N/A | C:\Windows\SysWOW64\cmd.exe | C:\Windows\SysWOW64\taskkill.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe
"C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 456
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 772
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 804
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 804
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 836
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 936
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 976
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 1056
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 1004
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "3a4fc843fea55ee700af9ca739e690e0.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\3a4fc843fea55ee700af9ca739e690e0.exe" & exit
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3528 -ip 3528
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3528 -s 1488
C:\Windows\SysWOW64\taskkill.exe
taskkill /im "3a4fc843fea55ee700af9ca739e690e0.exe" /f
Network
| Country | Destination | Domain | Proto |
| N/A | 45.139.105.171:80 | 45.139.105.171 | tcp |
| N/A | 52.182.143.208:443 | tcp | |
| N/A | 87.248.202.1:80 | tcp | |
| N/A | 87.248.202.1:80 | tcp | |
| N/A | 87.248.202.1:80 | tcp | |
| N/A | 8.8.8.8:53 | 164.2.77.40.in-addr.arpa | udp |
Files
memory/3528-132-0x0000000000727000-0x000000000074E000-memory.dmp
memory/3528-133-0x00000000005B0000-0x00000000005F0000-memory.dmp
memory/3528-134-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1580-135-0x0000000000000000-mapping.dmp
memory/3052-136-0x0000000000000000-mapping.dmp
memory/3528-137-0x0000000000727000-0x000000000074E000-memory.dmp
memory/3528-138-0x0000000000400000-0x0000000000462000-memory.dmp