Analysis Overview
SHA256
d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562
Threat Level: Known bad
The file d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Loads dropped DLL
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-11 05:25
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-11 05:25
Reported
2025-01-11 05:28
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
147s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
Legitimate hosting services abused for malware hosting/C2
| Description | Indicator | Process | Target |
| N/A | drive.google.com | N/A | N/A |
| N/A | drive.google.com | N/A | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 996 set thread context of 2836 | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.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\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.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\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe
"C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe"
C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe
"C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2836 -ip 2836
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2836 -s 2288
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.129.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | drive.google.com | udp |
| GB | 142.250.179.238:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| GB | 142.250.178.3:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | o.pki.goog | udp |
| GB | 142.250.178.3:80 | o.pki.goog | tcp |
| US | 8.8.8.8:53 | 206.221.208.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 238.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.178.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| GB | 216.58.212.193:443 | drive.usercontent.google.com | tcp |
| US | 8.8.8.8:53 | 193.212.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| JP | 132.226.8.169:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | 169.8.226.132.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 | 29.243.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsiCE00.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/996-13-0x00000000032E0000-0x00000000063DB000-memory.dmp
memory/996-14-0x0000000077E31000-0x0000000077F51000-memory.dmp
memory/996-15-0x0000000074B25000-0x0000000074B26000-memory.dmp
memory/996-16-0x00000000032E0000-0x00000000063DB000-memory.dmp
memory/996-17-0x00000000032E0000-0x00000000063DB000-memory.dmp
memory/2836-18-0x00000000016E0000-0x00000000047DB000-memory.dmp
memory/2836-28-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2836-32-0x00000000016E0000-0x00000000047DB000-memory.dmp
memory/2836-33-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/2836-34-0x0000000000480000-0x000000000049E000-memory.dmp
memory/2836-35-0x0000000037560000-0x0000000037B04000-memory.dmp
memory/2836-36-0x0000000037B10000-0x0000000037BAC000-memory.dmp
memory/2836-38-0x00000000016E0000-0x00000000047DB000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2025-01-11 05:25
Reported
2025-01-11 05:28
Platform
win7-20241010-en
Max time kernel
13s
Max time network
19s
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 2956 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2025-01-11 05:25
Reported
2025-01-11 05:28
Platform
win10v2004-20241007-en
Max time kernel
149s
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 4224 wrote to memory of 1764 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4224 wrote to memory of 1764 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4224 wrote to memory of 1764 | 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 1764 -ip 1764
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1764 -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 | 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 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 113.168.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.173.189.20.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2025-01-11 05:25
Reported
2025-01-11 05:28
Platform
win7-20240903-en
Max time kernel
12s
Max time network
125s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
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\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe
"C:\Users\Admin\AppData\Local\Temp\d7aca08687c1ffc0b01ad90f5500c968796bebf8b60995363c8d7c19be48c562.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nsjC361.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/2548-15-0x0000000003550000-0x000000000664B000-memory.dmp
memory/2548-20-0x0000000003550000-0x000000000664B000-memory.dmp