Analysis Overview
SHA256
245d3f23439f2137b17429adc8cd243df06ce1d4ce3b1608fef8f77307f21f1d
Threat Level: Known bad
The file 245d3f23439f2137b17429adc8cd243df06ce1d4ce3b1608fef8f77307f21f1d was found to be: Known bad.
Malicious Activity Summary
Guloader family
AgentTesla
Guloader,Cloudeye
Agenttesla family
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Looks up external IP address via web service
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Program crash
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-16 09:18
Signatures
Unsigned PE
| 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 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-16 09:18
Reported
2024-12-16 09:20
Platform
win7-20241023-en
Max time kernel
147s
Max time network
127s
Command Line
Signatures
AgentTesla
Agenttesla family
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.ipify.org | N/A | N/A |
| N/A | api.ipify.org | N/A | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2232 set thread context of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2232 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
| PID 2232 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
| PID 2232 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
| PID 2232 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
| PID 2232 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
| PID 2232 wrote to memory of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 84.38.133.133:80 | 84.38.133.133 | tcp |
| US | 8.8.8.8:53 | api.ipify.org | udp |
| US | 172.67.74.152:443 | api.ipify.org | tcp |
Files
\Users\Admin\AppData\Local\Temp\nsdB75E.tmp\System.dll
| MD5 | 0ff2d70cfdc8095ea99ca2dabbec3cd7 |
| SHA1 | 10c51496d37cecd0e8a503a5a9bb2329d9b38116 |
| SHA256 | 982c5fb7ada7d8c9bc3e419d1c35da6f05bc5dd845940c179af3a33d00a36a8b |
| SHA512 | cb5fc0b3194f469b833c2c9abf493fcec5251e8609881b7f5e095b9bd09ed468168e95dda0ba415a7d8d6b7f0dee735467c0ed8e52b223eb5359986891ba6e2e |
\Users\Admin\AppData\Local\Temp\nsdB75E.tmp\LangDLL.dll
| MD5 | 174708997758321cf926b69318c6c3f5 |
| SHA1 | 645488089bf320f6864e0d0bc284c85216e56fbd |
| SHA256 | f577b66492e97c7b8bf515398d8deb745abafd74f56fc03e67fce248ebbeb873 |
| SHA512 | 214433597e04ca1ff9b4fe092d5d2997707a7c56f0f82c85d586088a200e4455028f3b9427d87b4f06f9252557d5be4b7a9138ea6a8d045df6209421fd8ca054 |
memory/2232-33-0x00000000038F0000-0x0000000004AFA000-memory.dmp
memory/2232-34-0x0000000077B51000-0x0000000077C52000-memory.dmp
memory/2232-35-0x0000000077B50000-0x0000000077CF9000-memory.dmp
memory/2232-36-0x00000000038F0000-0x0000000004AFA000-memory.dmp
memory/2232-37-0x00000000038F0000-0x0000000004AFA000-memory.dmp
memory/2888-38-0x0000000077B50000-0x0000000077CF9000-memory.dmp
memory/2888-39-0x00000000004B0000-0x0000000001512000-memory.dmp
memory/2888-40-0x00000000004B0000-0x00000000004F2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-16 09:18
Reported
2024-12-16 09:20
Platform
win10v2004-20241007-en
Max time kernel
150s
Max time network
147s
Command Line
Signatures
AgentTesla
Agenttesla family
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | api.ipify.org | N/A | N/A |
| N/A | api.ipify.org | N/A | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4904 set thread context of 1296 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4904 wrote to memory of 1296 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
| PID 4904 wrote to memory of 1296 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
| PID 4904 wrote to memory of 1296 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
| PID 4904 wrote to memory of 1296 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
| PID 4904 wrote to memory of 1296 | N/A | C:\Users\Admin\AppData\Local\Temp\PO.exe | C:\Users\Admin\AppData\Local\Temp\PO.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| NL | 84.38.133.133:80 | 84.38.133.133 | tcp |
| US | 8.8.8.8:53 | 133.133.38.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | api.ipify.org | udp |
| US | 172.67.74.152:443 | api.ipify.org | tcp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 152.74.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.130.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nshBD56.tmp\System.dll
| MD5 | 0ff2d70cfdc8095ea99ca2dabbec3cd7 |
| SHA1 | 10c51496d37cecd0e8a503a5a9bb2329d9b38116 |
| SHA256 | 982c5fb7ada7d8c9bc3e419d1c35da6f05bc5dd845940c179af3a33d00a36a8b |
| SHA512 | cb5fc0b3194f469b833c2c9abf493fcec5251e8609881b7f5e095b9bd09ed468168e95dda0ba415a7d8d6b7f0dee735467c0ed8e52b223eb5359986891ba6e2e |
C:\Users\Admin\AppData\Local\Temp\nshBD56.tmp\LangDLL.dll
| MD5 | 174708997758321cf926b69318c6c3f5 |
| SHA1 | 645488089bf320f6864e0d0bc284c85216e56fbd |
| SHA256 | f577b66492e97c7b8bf515398d8deb745abafd74f56fc03e67fce248ebbeb873 |
| SHA512 | 214433597e04ca1ff9b4fe092d5d2997707a7c56f0f82c85d586088a200e4455028f3b9427d87b4f06f9252557d5be4b7a9138ea6a8d045df6209421fd8ca054 |
memory/4904-35-0x0000000004240000-0x000000000544A000-memory.dmp
memory/4904-36-0x0000000076EB1000-0x0000000076FD1000-memory.dmp
memory/4904-38-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4904-37-0x0000000004240000-0x000000000544A000-memory.dmp
memory/4904-39-0x0000000004240000-0x000000000544A000-memory.dmp
memory/1296-40-0x0000000001710000-0x000000000291A000-memory.dmp
memory/1296-41-0x0000000076F38000-0x0000000076F39000-memory.dmp
memory/1296-42-0x0000000076F55000-0x0000000076F56000-memory.dmp
memory/1296-43-0x00000000004B0000-0x0000000001704000-memory.dmp
memory/1296-44-0x0000000001710000-0x000000000291A000-memory.dmp
memory/1296-45-0x0000000076EB1000-0x0000000076FD1000-memory.dmp
memory/1296-46-0x00000000004B0000-0x00000000004F2000-memory.dmp
memory/1296-47-0x00000000352C0000-0x0000000035864000-memory.dmp
memory/1296-48-0x0000000035240000-0x00000000352A6000-memory.dmp
memory/1296-49-0x0000000036170000-0x00000000361C0000-memory.dmp
memory/1296-50-0x00000000361C0000-0x0000000036252000-memory.dmp
memory/1296-51-0x0000000036290000-0x000000003629A000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-12-16 09:18
Reported
2024-12-16 09:20
Platform
win7-20240903-en
Max time kernel
118s
Max time network
120s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-12-16 09:18
Reported
2024-12-16 09:20
Platform
win10v2004-20241007-en
Max time kernel
91s
Max time network
137s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3524 wrote to memory of 1724 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3524 wrote to memory of 1724 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3524 wrote to memory of 1724 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\LangDLL.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1724 -ip 1724
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 600
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral5
Detonation Overview
Submitted
2024-12-16 09:18
Reported
2024-12-16 09:20
Platform
win7-20240903-en
Max time kernel
121s
Max time network
121s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 224
Network
Files
Analysis: behavioral6
Detonation Overview
Submitted
2024-12-16 09:18
Reported
2024-12-16 09:20
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
143s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3544 wrote to memory of 4600 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3544 wrote to memory of 4600 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3544 wrote to memory of 4600 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4600 -ip 4600
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4600 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 85.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |