Analysis Overview
SHA256
0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4
Threat Level: Known bad
The file 0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4 was found to be: Known bad.
Malicious Activity Summary
Guloader family
Guloader,Cloudeye
Loads dropped DLL
Legitimate hosting services abused for malware hosting/C2
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Program crash
NSIS installer
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-29 19:38
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| 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: behavioral4
Detonation Overview
Submitted
2024-10-29 19:38
Reported
2024-10-29 19:40
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
159s
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 4500 wrote to memory of 4988 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4500 wrote to memory of 4988 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4500 wrote to memory of 4988 | 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 4988 -ip 4988
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4988 -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 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.173.189.20.in-addr.arpa | udp |
Files
Analysis: behavioral5
Detonation Overview
Submitted
2024-10-29 19:38
Reported
2024-10-29 19:38
Platform
win7-20240903-en
Max time kernel
0s
Command Line
Signatures
Processes
Network
Files
Analysis: behavioral6
Detonation Overview
Submitted
2024-10-29 19:38
Reported
2024-10-29 19:38
Platform
win10v2004-20241007-en
Max time kernel
0s
Max time network
2s
Command Line
Signatures
Processes
Network
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-29 19:38
Reported
2024-10-29 19:40
Platform
win7-20240903-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.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 |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2400 set thread context of 2916 | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\brakehand.Inf120 | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
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\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.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\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe
"C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe"
C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe
"C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 696
Network
| Country | Destination | Domain | Proto |
| 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 | 142.250.180.3:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | o.pki.goog | udp |
| GB | 142.250.180.3:80 | o.pki.goog | tcp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| GB | 142.250.187.193:443 | drive.usercontent.google.com | tcp |
| US | 8.8.8.8:53 | crl.microsoft.com | udp |
| GB | 2.18.190.80:80 | crl.microsoft.com | tcp |
Files
\Users\Admin\AppData\Local\Temp\nst78F8.tmp\System.dll
| MD5 | 4d3b19a81bd51f8ce44b93643a4e3a99 |
| SHA1 | 35f8b00e85577b014080df98bd2c378351d9b3e9 |
| SHA256 | fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce |
| SHA512 | b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622 |
memory/2400-13-0x00000000036F0000-0x00000000053E7000-memory.dmp
memory/2400-15-0x0000000077800000-0x00000000779A9000-memory.dmp
memory/2400-14-0x0000000077801000-0x0000000077902000-memory.dmp
memory/2400-16-0x00000000036F0000-0x00000000053E7000-memory.dmp
memory/2400-17-0x00000000036F0000-0x00000000053E7000-memory.dmp
memory/2916-18-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2916-19-0x0000000077800000-0x00000000779A9000-memory.dmp
memory/2916-41-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2916-42-0x0000000000400000-0x0000000001462000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-29 19:38
Reported
2024-10-29 19:40
Platform
win10v2004-20241007-en
Max time kernel
131s
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\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.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 |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2852 set thread context of 2460 | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\brakehand.Inf120 | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
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\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.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\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe
"C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe"
C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe
"C:\Users\Admin\AppData\Local\Temp\0b2441e984653fdb0907557a75c1798b13bb62e338c65a554bc3360c5ec5a8a4.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2460 -ip 2460
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2460 -s 1552
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 | 67.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.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 | 142.250.180.3:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | o.pki.goog | udp |
| GB | 142.250.180.3:80 | o.pki.goog | tcp |
| US | 8.8.8.8:53 | drive.usercontent.google.com | udp |
| GB | 142.250.187.193:443 | drive.usercontent.google.com | tcp |
| US | 8.8.8.8:53 | 238.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.204.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.180.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 193.187.250.142.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 | 69.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsi826F.tmp\System.dll
| MD5 | 4d3b19a81bd51f8ce44b93643a4e3a99 |
| SHA1 | 35f8b00e85577b014080df98bd2c378351d9b3e9 |
| SHA256 | fda0018ab182ac6025d2fc9a2efcce3745d1da21ce5141859f8286cf319a52ce |
| SHA512 | b2ba9c961c0e1617f802990587a9000979ab5cc493ae2f8ca852eb43eeaf24916b0b29057dbff7d41a1797dfb2dce3db41990e8639b8f205771dbec3fd80f622 |
memory/2852-12-0x0000000003080000-0x0000000004D77000-memory.dmp
memory/2852-13-0x0000000003080000-0x0000000004D77000-memory.dmp
memory/2852-14-0x0000000077AA1000-0x0000000077BC1000-memory.dmp
memory/2852-15-0x0000000010004000-0x0000000010005000-memory.dmp
memory/2460-16-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2852-17-0x0000000003080000-0x0000000004D77000-memory.dmp
memory/2460-18-0x0000000001660000-0x0000000003357000-memory.dmp
memory/2460-19-0x0000000077B28000-0x0000000077B29000-memory.dmp
memory/2460-20-0x0000000077B45000-0x0000000077B46000-memory.dmp
memory/2460-33-0x0000000001660000-0x0000000003357000-memory.dmp
memory/2460-34-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2460-35-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2460-36-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2460-37-0x0000000077AA1000-0x0000000077BC1000-memory.dmp
memory/2460-38-0x0000000001660000-0x0000000003357000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-10-29 19:38
Reported
2024-10-29 19:40
Platform
win7-20240708-en
Max time kernel
118s
Max time network
119s
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 1452 -s 224