Analysis Overview
SHA256
61468e3775e2171c306d339dfd7a117405c13b4462399e8e286c3e86b8e1d3d9
Threat Level: Known bad
The file ff9add51335bd66c0b204bf060a92d4b was found to be: Known bad.
Malicious Activity Summary
PlugX
Detects PlugX payload
Unexpected DNS network traffic destination
Drops file in System32 directory
Drops file in Windows directory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix
Analysis: static1
Detonation Overview
Reported
2023-12-28 23:22
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-28 23:22
Reported
2024-01-03 17:22
Platform
win7-20231129-en
Max time kernel
148s
Max time network
149s
Command Line
Signatures
Detects PlugX payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
PlugX
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 146.148.42.217 | N/A | N/A |
| Destination IP | 146.148.42.217 | N/A | N/A |
| Destination IP | 146.148.42.217 | N/A | N/A |
| Destination IP | 146.148.42.217 | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\boot.ldr | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\NvSmart.exe | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File created | C:\Windows\SysWOW64\NvSmart.exe | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\NvSmartMax.dll | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File created | C:\Windows\SysWOW64\NvSmartMax.dll | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\boot.ldr | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64 | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Classes\FAST\CLSID = 37003100370037004400300045003800420035003000410038003200430035000000 | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| Key created | \REGISTRY\MACHINE\Software\CLASSES\FAST | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| Token: SeTcbPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| Token: SeTcbPrivilege | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe
"C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe"
C:\Windows\SysWOW64\msiexec.exe
C:\Windows\system32\msiexec.exe 209 2784
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | murun.baatarhuu.com | udp |
| N/A | 10.127.255.255:53 | udp | |
| US | 146.148.42.217:53 | murun.baatarhuu.com | udp |
| US | 8.8.8.8:53 | gol.baatarhuu.com | udp |
| US | 146.148.42.217:80 | gol.baatarhuu.com | udp |
| US | 8.8.8.8:53 | murun.baatarhuu.com | udp |
| US | 146.148.42.217:53 | murun.baatarhuu.com | udp |
| US | 8.8.8.8:53 | gol.baatarhuu.com | udp |
| US | 146.148.42.217:80 | gol.baatarhuu.com | udp |
| US | 8.8.8.8:53 | murun.baatarhuu.com | udp |
| US | 146.148.42.217:53 | murun.baatarhuu.com | udp |
| US | 8.8.8.8:53 | gol.baatarhuu.com | udp |
| US | 146.148.42.217:80 | gol.baatarhuu.com | udp |
| US | 8.8.8.8:53 | murun.baatarhuu.com | udp |
| US | 146.148.42.217:53 | murun.baatarhuu.com | udp |
| US | 8.8.8.8:53 | gol.baatarhuu.com | udp |
| US | 146.148.42.217:80 | gol.baatarhuu.com | udp |
Files
memory/2784-0-0x0000000000270000-0x0000000000293000-memory.dmp
memory/2784-1-0x0000000001D90000-0x0000000001DBF000-memory.dmp
memory/2784-11-0x0000000001D90000-0x0000000001DBF000-memory.dmp
memory/2784-14-0x0000000001D90000-0x0000000001DBF000-memory.dmp
memory/2784-26-0x0000000001D90000-0x0000000001DBF000-memory.dmp
memory/2784-25-0x00000000002A0000-0x00000000002A1000-memory.dmp
memory/2784-27-0x0000000001D90000-0x0000000001DBF000-memory.dmp
memory/2784-28-0x0000000001D90000-0x0000000001DBF000-memory.dmp
memory/2784-30-0x0000000001D90000-0x0000000001DBF000-memory.dmp
memory/2784-33-0x0000000001D90000-0x0000000001DBF000-memory.dmp
memory/2624-37-0x0000000000120000-0x0000000000122000-memory.dmp
memory/2624-42-0x00000000008B0000-0x00000000008DF000-memory.dmp
memory/2624-41-0x00000000008B0000-0x00000000008DF000-memory.dmp
memory/2624-40-0x00000000008B0000-0x00000000008DF000-memory.dmp
memory/2624-39-0x0000000000050000-0x0000000000051000-memory.dmp
memory/2624-38-0x00000000008B0000-0x00000000008DF000-memory.dmp
memory/2624-36-0x00000000000F0000-0x0000000000111000-memory.dmp
memory/2624-34-0x00000000000D0000-0x00000000000D1000-memory.dmp
memory/2784-43-0x0000000001D90000-0x0000000001DBF000-memory.dmp
memory/2624-44-0x00000000008B0000-0x00000000008DF000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-28 23:22
Reported
2024-01-03 17:22
Platform
win10v2004-20231215-en
Max time kernel
149s
Max time network
137s
Command Line
Signatures
Detects PlugX payload
| 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 |
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| 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 |
PlugX
Unexpected DNS network traffic destination
| Description | Indicator | Process | Target |
| Destination IP | 146.148.42.217 | N/A | N/A |
| Destination IP | 146.148.42.217 | N/A | N/A |
| Destination IP | 146.148.42.217 | N/A | N/A |
| Destination IP | 146.148.42.217 | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\boot.ldr | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\NvSmart.exe | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File created | C:\Windows\SysWOW64\NvSmart.exe | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\NvSmartMax.dll | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File created | C:\Windows\SysWOW64\NvSmartMax.dll | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\boot.ldr | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64 | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\CLASSES\FAST | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Classes\FAST\CLSID = 38004500440043003500410036003400360044003800440036003000370038000000 | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| Token: SeTcbPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| Token: SeTcbPrivilege | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe
"C:\Users\Admin\AppData\Local\Temp\ff9add51335bd66c0b204bf060a92d4b.exe"
C:\Windows\SysWOW64\msiexec.exe
C:\Windows\system32\msiexec.exe 209 5060
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | murun.baatarhuu.com | udp |
| N/A | 10.127.255.255:53 | udp | |
| US | 146.148.42.217:53 | murun.baatarhuu.com | udp |
| US | 8.8.8.8:53 | 82.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.42.148.146.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 193.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 195.233.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gol.baatarhuu.com | udp |
| US | 146.148.42.217:80 | gol.baatarhuu.com | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.234.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.microsoft.com | udp |
| US | 2.17.5.133:80 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 2.17.5.133:80 | www.microsoft.com | tcp |
| US | 8.8.8.8:53 | 133.5.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | murun.baatarhuu.com | udp |
| US | 146.148.42.217:53 | murun.baatarhuu.com | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gol.baatarhuu.com | udp |
| US | 146.148.42.217:80 | gol.baatarhuu.com | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.5.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | murun.baatarhuu.com | udp |
| US | 146.148.42.217:53 | murun.baatarhuu.com | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gol.baatarhuu.com | udp |
| US | 146.148.42.217:80 | gol.baatarhuu.com | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | murun.baatarhuu.com | udp |
| US | 146.148.42.217:53 | murun.baatarhuu.com | udp |
| US | 8.8.8.8:53 | udp | |
| US | 146.148.42.217:80 | udp |
Files
memory/5060-0-0x0000000002380000-0x00000000023A3000-memory.dmp
memory/5060-2-0x0000000002440000-0x000000000246F000-memory.dmp
memory/5060-14-0x0000000002440000-0x000000000246F000-memory.dmp
memory/5060-25-0x00000000023D0000-0x00000000023D1000-memory.dmp
memory/5060-26-0x0000000002440000-0x000000000246F000-memory.dmp
memory/5060-27-0x0000000002440000-0x000000000246F000-memory.dmp
memory/5060-28-0x0000000002440000-0x000000000246F000-memory.dmp
memory/5060-30-0x0000000002440000-0x000000000246F000-memory.dmp
memory/5060-31-0x0000000002440000-0x000000000246F000-memory.dmp
memory/5060-33-0x0000000002440000-0x000000000246F000-memory.dmp
memory/3160-34-0x0000000002B00000-0x0000000002B2F000-memory.dmp
memory/3160-38-0x0000000002B00000-0x0000000002B2F000-memory.dmp
memory/3160-36-0x0000000001330000-0x0000000001331000-memory.dmp
memory/3160-35-0x0000000000D10000-0x0000000000D11000-memory.dmp
memory/3160-39-0x0000000002B00000-0x0000000002B2F000-memory.dmp
memory/5060-40-0x0000000002440000-0x000000000246F000-memory.dmp
memory/3160-41-0x0000000002B00000-0x0000000002B2F000-memory.dmp