Analysis Overview
SHA256
acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac
Threat Level: Known bad
The file acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe was found to be: Known bad.
Malicious Activity Summary
Guloader family
Guloader,Cloudeye
Loads dropped DLL
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Enumerates physical storage devices
Program crash
Unsigned PE
System Location Discovery: System Language Discovery
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 02:56
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: behavioral1
Detonation Overview
Submitted
2024-11-07 02:56
Reported
2024-11-07 02:59
Platform
win7-20240903-en
Max time kernel
120s
Max time network
121s
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\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.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\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2600 wrote to memory of 2668 | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2600 wrote to memory of 2668 | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2600 wrote to memory of 2668 | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2600 wrote to memory of 2668 | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe
"C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2600 -s 528
Network
Files
\Users\Admin\AppData\Local\Temp\nsyB6F1.tmp\System.dll
| MD5 | 4ca4fd3fbefa2f6e87e6e9ee87d1c0b3 |
| SHA1 | 7cdbeb5ff2b14b86af04e075d0ca651183ea5df4 |
| SHA256 | d09a8b3ade4ba4b7292c0b3da1bcb4b6c6e2012e0ccfd5e029a54af73a9e1b57 |
| SHA512 | cf0f415a97fdc74568297fed4f1295d0d2aef487a308141144ef8d5f04c669ef4795c273e745b81065429adde113fcdedf4c22717a7aeef60fdcd8d4d46f97f8 |
\Users\Admin\AppData\Local\Temp\nsyB6F1.tmp\LangDLL.dll
| MD5 | 61f69388ae89d61a3d838cbcf81b4f82 |
| SHA1 | e595c0236a373a6ac79c334dc183ee03ca8f8ecd |
| SHA256 | d65875bb4bc121f81384d55fde90dd9eb9ad1878cd8a02bcb5c8a933c3987a61 |
| SHA512 | 21d34738cc21c1ef6b0ef1ac53659cdab224bbc20ea983f9a952a2cb4b5785a07bb18c0acf22a0d12a94795e1fc6d314f442c923bb1a93b675edac8c6aacf469 |
memory/2600-35-0x0000000003EF0000-0x00000000066C5000-memory.dmp
memory/2600-36-0x0000000003EF0000-0x00000000066C5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-07 02:56
Reported
2024-11-07 02:59
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
150s
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\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3940 set thread context of 452 | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.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\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.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\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe
"C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe"
C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe
"C:\Users\Admin\AppData\Local\Temp\acdda22ea40a289e3a1ff725de7a933415bf6c143dc60cdb296fe17d36d894ac.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 452 -ip 452
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 1232
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 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.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 | 70.180.42.100.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 137.71.105.51.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsp784E.tmp\System.dll
| MD5 | 4ca4fd3fbefa2f6e87e6e9ee87d1c0b3 |
| SHA1 | 7cdbeb5ff2b14b86af04e075d0ca651183ea5df4 |
| SHA256 | d09a8b3ade4ba4b7292c0b3da1bcb4b6c6e2012e0ccfd5e029a54af73a9e1b57 |
| SHA512 | cf0f415a97fdc74568297fed4f1295d0d2aef487a308141144ef8d5f04c669ef4795c273e745b81065429adde113fcdedf4c22717a7aeef60fdcd8d4d46f97f8 |
C:\Users\Admin\AppData\Local\Temp\nsp784E.tmp\LangDLL.dll
| MD5 | 61f69388ae89d61a3d838cbcf81b4f82 |
| SHA1 | e595c0236a373a6ac79c334dc183ee03ca8f8ecd |
| SHA256 | d65875bb4bc121f81384d55fde90dd9eb9ad1878cd8a02bcb5c8a933c3987a61 |
| SHA512 | 21d34738cc21c1ef6b0ef1ac53659cdab224bbc20ea983f9a952a2cb4b5785a07bb18c0acf22a0d12a94795e1fc6d314f442c923bb1a93b675edac8c6aacf469 |
memory/3940-29-0x0000000005240000-0x0000000007A15000-memory.dmp
memory/3940-30-0x0000000005240000-0x0000000007A15000-memory.dmp
memory/3940-31-0x0000000077AC1000-0x0000000077BE1000-memory.dmp
memory/3940-32-0x0000000074924000-0x0000000074925000-memory.dmp
memory/3940-34-0x0000000005240000-0x0000000007A15000-memory.dmp
memory/452-33-0x0000000000400000-0x0000000001654000-memory.dmp
memory/452-35-0x0000000001660000-0x0000000003E35000-memory.dmp
memory/452-36-0x0000000000400000-0x0000000001654000-memory.dmp
memory/452-37-0x0000000000400000-0x0000000001654000-memory.dmp
memory/452-38-0x0000000001660000-0x0000000003E35000-memory.dmp
memory/452-39-0x0000000000400000-0x0000000001654000-memory.dmp
memory/452-40-0x0000000000400000-0x0000000001654000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-07 02:56
Reported
2024-11-07 02:59
Platform
win7-20241010-en
Max time kernel
122s
Max time network
128s
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 2760 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-07 02:56
Reported
2024-11-07 02:59
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
139s
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 1256 wrote to memory of 2696 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1256 wrote to memory of 2696 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1256 wrote to memory of 2696 | 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 2696 -ip 2696
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2696 -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 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral5
Detonation Overview
Submitted
2024-11-07 02:56
Reported
2024-11-07 02:59
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\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 2348 -s 220
Network
Files
Analysis: behavioral6
Detonation Overview
Submitted
2024-11-07 02:56
Reported
2024-11-07 02:59
Platform
win10v2004-20241007-en
Max time kernel
95s
Max time network
151s
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 3720 wrote to memory of 2248 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3720 wrote to memory of 2248 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3720 wrote to memory of 2248 | 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 2248 -ip 2248
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2248 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |