Analysis Overview
SHA256
137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86
Threat Level: Known bad
The file 137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe was found to be: Known bad.
Malicious Activity Summary
Guloader family
Guloader,Cloudeye
Loads dropped DLL
Suspicious use of SetThreadContext
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
System Location Discovery: System Language Discovery
Program crash
Unsigned PE
Enumerates physical storage devices
NSIS installer
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-07 02:08
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 |
NSIS installer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral5
Detonation Overview
Submitted
2024-11-07 02:08
Reported
2024-11-07 02:10
Platform
win7-20240903-en
Max time kernel
121s
Max time network
122s
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 2664 -s 220
Network
Files
Analysis: behavioral6
Detonation Overview
Submitted
2024-11-07 02:08
Reported
2024-11-07 02:10
Platform
win10v2004-20241007-en
Max time kernel
95s
Max time network
133s
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 1324 wrote to memory of 512 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1324 wrote to memory of 512 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1324 wrote to memory of 512 | 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 408 -p 512 -ip 512
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 512 -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 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.208.201.84.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 | 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 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-07 02:08
Reported
2024-11-07 02:10
Platform
win7-20240903-en
Max time kernel
122s
Max time network
123s
Command Line
Signatures
Loads dropped DLL
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe |
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\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2440 wrote to memory of 2412 | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2440 wrote to memory of 2412 | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2440 wrote to memory of 2412 | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2440 wrote to memory of 2412 | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe
"C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2440 -s 528
Network
Files
\Users\Admin\AppData\Local\Temp\nsj8EAA.tmp\System.dll
| MD5 | 4ca4fd3fbefa2f6e87e6e9ee87d1c0b3 |
| SHA1 | 7cdbeb5ff2b14b86af04e075d0ca651183ea5df4 |
| SHA256 | d09a8b3ade4ba4b7292c0b3da1bcb4b6c6e2012e0ccfd5e029a54af73a9e1b57 |
| SHA512 | cf0f415a97fdc74568297fed4f1295d0d2aef487a308141144ef8d5f04c669ef4795c273e745b81065429adde113fcdedf4c22717a7aeef60fdcd8d4d46f97f8 |
\Users\Admin\AppData\Local\Temp\nsj8EAA.tmp\LangDLL.dll
| MD5 | 61f69388ae89d61a3d838cbcf81b4f82 |
| SHA1 | e595c0236a373a6ac79c334dc183ee03ca8f8ecd |
| SHA256 | d65875bb4bc121f81384d55fde90dd9eb9ad1878cd8a02bcb5c8a933c3987a61 |
| SHA512 | 21d34738cc21c1ef6b0ef1ac53659cdab224bbc20ea983f9a952a2cb4b5785a07bb18c0acf22a0d12a94795e1fc6d314f442c923bb1a93b675edac8c6aacf469 |
memory/2440-35-0x0000000003DE0000-0x0000000004E7E000-memory.dmp
memory/2440-36-0x0000000003DE0000-0x0000000004E7E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-07 02:08
Reported
2024-11-07 02:10
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
138s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4624 set thread context of 1868 | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe |
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\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe
"C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe"
C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe
"C:\Users\Admin\AppData\Local\Temp\137742d1bb597a2818431b1634f38a9d93069afc1657955ef7144c152eb26f86.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1868 -ip 1868
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1868 -s 1232
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 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | iw.achulapo.ru.com | udp |
| DE | 100.42.180.70:80 | iw.achulapo.ru.com | tcp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 70.180.42.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsa8629.tmp\LangDLL.dll
| MD5 | 61f69388ae89d61a3d838cbcf81b4f82 |
| SHA1 | e595c0236a373a6ac79c334dc183ee03ca8f8ecd |
| SHA256 | d65875bb4bc121f81384d55fde90dd9eb9ad1878cd8a02bcb5c8a933c3987a61 |
| SHA512 | 21d34738cc21c1ef6b0ef1ac53659cdab224bbc20ea983f9a952a2cb4b5785a07bb18c0acf22a0d12a94795e1fc6d314f442c923bb1a93b675edac8c6aacf469 |
C:\Users\Admin\AppData\Local\Temp\nsa8629.tmp\System.dll
| MD5 | 4ca4fd3fbefa2f6e87e6e9ee87d1c0b3 |
| SHA1 | 7cdbeb5ff2b14b86af04e075d0ca651183ea5df4 |
| SHA256 | d09a8b3ade4ba4b7292c0b3da1bcb4b6c6e2012e0ccfd5e029a54af73a9e1b57 |
| SHA512 | cf0f415a97fdc74568297fed4f1295d0d2aef487a308141144ef8d5f04c669ef4795c273e745b81065429adde113fcdedf4c22717a7aeef60fdcd8d4d46f97f8 |
memory/4624-29-0x0000000004A20000-0x0000000005ABE000-memory.dmp
memory/4624-30-0x0000000077121000-0x0000000077241000-memory.dmp
memory/4624-31-0x0000000073F84000-0x0000000073F85000-memory.dmp
memory/4624-32-0x0000000004A20000-0x0000000005ABE000-memory.dmp
memory/1868-33-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-34-0x0000000001660000-0x00000000026FE000-memory.dmp
memory/1868-35-0x00000000771A8000-0x00000000771A9000-memory.dmp
memory/1868-36-0x00000000771C5000-0x00000000771C6000-memory.dmp
memory/1868-38-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1868-37-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-39-0x0000000001660000-0x00000000026FE000-memory.dmp
memory/1868-40-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-42-0x0000000077121000-0x0000000077241000-memory.dmp
memory/1868-41-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-43-0x0000000000401000-0x0000000000404000-memory.dmp
memory/1868-44-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-45-0x0000000000400000-0x0000000001654000-memory.dmp
memory/1868-46-0x0000000000400000-0x0000000001654000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-07 02:08
Reported
2024-11-07 02:10
Platform
win7-20240903-en
Max time kernel
117s
Max time network
118s
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 3068 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-07 02:08
Reported
2024-11-07 02:10
Platform
win10v2004-20241007-en
Max time kernel
94s
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 1720 wrote to memory of 1204 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1720 wrote to memory of 1204 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1720 wrote to memory of 1204 | 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 404 -p 1204 -ip 1204
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1204 -s 600
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 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.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 | 66.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |