Analysis Overview
SHA256
280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552
Threat Level: Known bad
The file 280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe was found to be: Known bad.
Malicious Activity Summary
Guloader family
Guloader,Cloudeye
Loads dropped DLL
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Suspicious use of NtCreateThreadExHideFromDebugger
Enumerates physical storage devices
Unsigned PE
Program crash
System Location Discovery: System Language Discovery
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-01-11 02:39
Signatures
Unsigned PE
| 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
2025-01-11 02:39
Reported
2025-01-11 02:42
Platform
win7-20240903-en
Max time kernel
12s
Max time network
122s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.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\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe
"C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\nsd8393.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/2388-15-0x0000000003780000-0x0000000006674000-memory.dmp
memory/2388-20-0x0000000003780000-0x0000000006674000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-01-11 02:39
Reported
2025-01-11 02:42
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
150s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.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\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1668 set thread context of 3612 | N/A | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.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\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.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\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe
"C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe"
C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe
"C:\Users\Admin\AppData\Local\Temp\280344d8a94a23a0e351b1c1553ed3f1ae6db9c06c75ecda292211f5562de552.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3612 -ip 3612
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3612 -s 2288
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.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 | drive.google.com | udp |
| GB | 172.217.169.78:443 | drive.google.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| US | 8.8.8.8:53 | 78.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.178.250.142.in-addr.arpa | 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 | 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 |
| US | 158.101.44.242:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | 242.44.101.158.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.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\nsfB911.tmp\System.dll
| MD5 | 0d7ad4f45dc6f5aa87f606d0331c6901 |
| SHA1 | 48df0911f0484cbe2a8cdd5362140b63c41ee457 |
| SHA256 | 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca |
| SHA512 | c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9 |
memory/1668-13-0x00000000032A0000-0x0000000006194000-memory.dmp
memory/1668-14-0x0000000077141000-0x0000000077261000-memory.dmp
memory/1668-15-0x0000000073E35000-0x0000000073E36000-memory.dmp
memory/1668-16-0x00000000032A0000-0x0000000006194000-memory.dmp
memory/3612-17-0x00000000016E0000-0x00000000045D4000-memory.dmp
memory/3612-30-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/3612-32-0x00000000016E0000-0x00000000045D4000-memory.dmp
memory/3612-31-0x0000000000480000-0x00000000016D4000-memory.dmp
memory/3612-33-0x0000000000480000-0x000000000049E000-memory.dmp
memory/3612-34-0x0000000037470000-0x0000000037A14000-memory.dmp
memory/3612-35-0x0000000037A20000-0x0000000037ABC000-memory.dmp
memory/3612-38-0x00000000016E0000-0x00000000045D4000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2025-01-11 02:39
Reported
2025-01-11 02:42
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 2132 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2025-01-11 02:39
Reported
2025-01-11 02:42
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
150s
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 4600 wrote to memory of 3728 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4600 wrote to memory of 3728 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4600 wrote to memory of 3728 | 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 3728 -ip 3728
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 60.153.16.2.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 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.238.56.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 182.129.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.112.168.52.in-addr.arpa | udp |