Analysis Overview
SHA256
81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478
Threat Level: Known bad
The file 81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe was found to be: Known bad.
Malicious Activity Summary
AgentTesla
Guloader family
Agenttesla family
Guloader,Cloudeye
Reads data files stored by FTP clients
Loads dropped DLL
Reads WinSCP keys stored on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks up external IP address via web service
Suspicious use of SetThreadContext
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-17 03:30
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: behavioral6
Detonation Overview
Submitted
2024-12-17 03:30
Reported
2024-12-17 03:32
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
149s
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 2420 wrote to memory of 416 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2420 wrote to memory of 416 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2420 wrote to memory of 416 | 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 440 -p 416 -ip 416
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 416 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.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 | 182.129.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-17 03:30
Reported
2024-12-17 03:32
Platform
win7-20241010-en
Max time kernel
147s
Max time network
69s
Command Line
Signatures
AgentTesla
Agenttesla family
Guloader family
Guloader,Cloudeye
Loads dropped DLL
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\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2592 set thread context of 2620 | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.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\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe
"C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe"
C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe
"C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.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 | 104.26.13.205:443 | api.ipify.org | tcp |
Files
\Users\Admin\AppData\Local\Temp\nsuDE11.tmp\System.dll
| MD5 | 0ff2d70cfdc8095ea99ca2dabbec3cd7 |
| SHA1 | 10c51496d37cecd0e8a503a5a9bb2329d9b38116 |
| SHA256 | 982c5fb7ada7d8c9bc3e419d1c35da6f05bc5dd845940c179af3a33d00a36a8b |
| SHA512 | cb5fc0b3194f469b833c2c9abf493fcec5251e8609881b7f5e095b9bd09ed468168e95dda0ba415a7d8d6b7f0dee735467c0ed8e52b223eb5359986891ba6e2e |
\Users\Admin\AppData\Local\Temp\nsuDE11.tmp\LangDLL.dll
| MD5 | 174708997758321cf926b69318c6c3f5 |
| SHA1 | 645488089bf320f6864e0d0bc284c85216e56fbd |
| SHA256 | f577b66492e97c7b8bf515398d8deb745abafd74f56fc03e67fce248ebbeb873 |
| SHA512 | 214433597e04ca1ff9b4fe092d5d2997707a7c56f0f82c85d586088a200e4455028f3b9427d87b4f06f9252557d5be4b7a9138ea6a8d045df6209421fd8ca054 |
memory/2592-33-0x00000000030D0000-0x00000000042DA000-memory.dmp
memory/2592-34-0x00000000030D0000-0x00000000042DA000-memory.dmp
memory/2592-35-0x00000000772F1000-0x00000000773F2000-memory.dmp
memory/2592-36-0x00000000772F0000-0x0000000077499000-memory.dmp
memory/2620-37-0x00000000772F0000-0x0000000077499000-memory.dmp
memory/2592-38-0x00000000030D0000-0x00000000042DA000-memory.dmp
memory/2620-39-0x00000000004B0000-0x0000000001512000-memory.dmp
memory/2620-40-0x00000000004B0000-0x00000000004F2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-17 03:30
Reported
2024-12-17 03:32
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
AgentTesla
Agenttesla family
Guloader family
Guloader,Cloudeye
Loads dropped DLL
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\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3776 set thread context of 3928 | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.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\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe
"C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe"
C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe
"C:\Users\Admin\AppData\Local\Temp\81c7f5b291b1fcd6d64f7f12208b0134a8462f156dbda97188ec0ba5ff869478.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.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 | 152.74.67.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 107.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsl87EE.tmp\System.dll
| MD5 | 0ff2d70cfdc8095ea99ca2dabbec3cd7 |
| SHA1 | 10c51496d37cecd0e8a503a5a9bb2329d9b38116 |
| SHA256 | 982c5fb7ada7d8c9bc3e419d1c35da6f05bc5dd845940c179af3a33d00a36a8b |
| SHA512 | cb5fc0b3194f469b833c2c9abf493fcec5251e8609881b7f5e095b9bd09ed468168e95dda0ba415a7d8d6b7f0dee735467c0ed8e52b223eb5359986891ba6e2e |
C:\Users\Admin\AppData\Local\Temp\nsl87EE.tmp\LangDLL.dll
| MD5 | 174708997758321cf926b69318c6c3f5 |
| SHA1 | 645488089bf320f6864e0d0bc284c85216e56fbd |
| SHA256 | f577b66492e97c7b8bf515398d8deb745abafd74f56fc03e67fce248ebbeb873 |
| SHA512 | 214433597e04ca1ff9b4fe092d5d2997707a7c56f0f82c85d586088a200e4455028f3b9427d87b4f06f9252557d5be4b7a9138ea6a8d045df6209421fd8ca054 |
memory/3776-35-0x0000000004240000-0x000000000544A000-memory.dmp
memory/3776-36-0x0000000077C21000-0x0000000077D41000-memory.dmp
memory/3776-38-0x0000000010004000-0x0000000010005000-memory.dmp
memory/3776-37-0x0000000004240000-0x000000000544A000-memory.dmp
memory/3776-39-0x0000000004240000-0x000000000544A000-memory.dmp
memory/3928-40-0x0000000001710000-0x000000000291A000-memory.dmp
memory/3928-41-0x0000000077CA8000-0x0000000077CA9000-memory.dmp
memory/3928-42-0x0000000001710000-0x000000000291A000-memory.dmp
memory/3928-43-0x0000000077CC5000-0x0000000077CC6000-memory.dmp
memory/3928-45-0x0000000077C21000-0x0000000077D41000-memory.dmp
memory/3928-44-0x00000000004B0000-0x0000000001704000-memory.dmp
memory/3928-46-0x00000000004B0000-0x00000000004F2000-memory.dmp
memory/3928-47-0x0000000035250000-0x00000000357F4000-memory.dmp
memory/3928-48-0x0000000035800000-0x0000000035866000-memory.dmp
memory/3928-50-0x0000000036170000-0x00000000361C0000-memory.dmp
memory/3928-51-0x00000000361C0000-0x0000000036252000-memory.dmp
memory/3928-52-0x0000000036290000-0x000000003629A000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-12-17 03:30
Reported
2024-12-17 03:32
Platform
win7-20240903-en
Max time kernel
122s
Max time network
123s
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 2664 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-12-17 03:30
Reported
2024-12-17 03:32
Platform
win10v2004-20241007-en
Max time kernel
95s
Max time network
148s
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 4272 wrote to memory of 1924 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4272 wrote to memory of 1924 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4272 wrote to memory of 1924 | 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 408 -p 1924 -ip 1924
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 608
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral5
Detonation Overview
Submitted
2024-12-17 03:30
Reported
2024-12-17 03:32
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 1944 -s 224