Analysis Overview
SHA256
8085c17ea9441ff19ee1d021408ce2b159bdf4d53704a9afd180e76033c74415
Threat Level: Known bad
The file rTransferenciarealizada451236.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
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Drops file in Program Files directory
Drops file in Windows directory
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Program crash
NSIS installer
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-30 00:01
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: behavioral2
Detonation Overview
Submitted
2024-10-30 00:01
Reported
2024-10-30 00:03
Platform
win10v2004-20241007-en
Max time kernel
149s
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\rTransferenciarealizada451236.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.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\rTransferenciarealizada451236.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2028 set thread context of 984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\Reoil.mul | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\resources\stenhjsplanternes\fordreves.ini | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\Fonts\karrooers.ini | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\Fonts\brunsttiderne.tri | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\Fonts\Spodium39.int | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\Belringernes\Dermatophony.ini | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\resources\nringsmiddelet.ini | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.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\rTransferenciarealizada451236.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2028 wrote to memory of 984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
| PID 2028 wrote to memory of 984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
| PID 2028 wrote to memory of 984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
| PID 2028 wrote to memory of 984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
| PID 2028 wrote to memory of 984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe
"C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe"
C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe
"C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe"
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 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.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 |
| US | 8.8.8.8:53 | 238.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.180.250.142.in-addr.arpa | 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 | 193.187.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 139.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.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 | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsf9396.tmp\System.dll
| MD5 | c9473cb90d79a374b2ba6040ca16e45c |
| SHA1 | ab95b54f12796dce57210d65f05124a6ed81234a |
| SHA256 | b80a5cba69d1853ed5979b0ca0352437bf368a5cfb86cb4528edadd410e11352 |
| SHA512 | eafe7d5894622bc21f663bca4dd594392ee0f5b29270b6b56b0187093d6a3a103545464ff6398ad32d2cf15dab79b1f133218ba9ba337ddc01330b5ada804d7b |
memory/2028-18-0x0000000003250000-0x0000000005353000-memory.dmp
memory/2028-19-0x0000000003250000-0x0000000005353000-memory.dmp
memory/2028-20-0x0000000077BD1000-0x0000000077CF1000-memory.dmp
memory/2028-21-0x0000000010004000-0x0000000010005000-memory.dmp
memory/2028-22-0x0000000003250000-0x0000000005353000-memory.dmp
memory/984-23-0x0000000000400000-0x0000000001654000-memory.dmp
memory/984-24-0x0000000001660000-0x0000000003763000-memory.dmp
memory/984-28-0x0000000000400000-0x0000000001654000-memory.dmp
memory/984-35-0x0000000001660000-0x0000000003763000-memory.dmp
memory/984-39-0x0000000000400000-0x0000000001654000-memory.dmp
memory/984-40-0x0000000077BD1000-0x0000000077CF1000-memory.dmp
memory/984-41-0x0000000000400000-0x0000000001654000-memory.dmp
memory/984-42-0x0000000000400000-0x0000000001654000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-10-30 00:01
Reported
2024-10-30 00:03
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 1932 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-10-30 00:01
Reported
2024-10-30 00:03
Platform
win10v2004-20241007-en
Max time kernel
150s
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 840 wrote to memory of 1600 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 840 wrote to memory of 1600 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 840 wrote to memory of 1600 | 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 412 -p 1600 -ip 1600
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1600 -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 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.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 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.143.182.52.in-addr.arpa | udp |
Files
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-30 00:01
Reported
2024-10-30 00:03
Platform
win7-20240903-en
Max time kernel
141s
Max time network
137s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.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\rTransferenciarealizada451236.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1832 set thread context of 2888 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Program Files (x86)\Common Files\Reoil.mul | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Fonts\karrooers.ini | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\Fonts\brunsttiderne.tri | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\Fonts\Spodium39.int | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\Belringernes\Dermatophony.ini | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\resources\nringsmiddelet.ini | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
| File opened for modification | C:\Windows\resources\stenhjsplanternes\fordreves.ini | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.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\rTransferenciarealizada451236.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe
"C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe"
C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe
"C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe"
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 | 142.250.179.227:80 | 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 | 2.18.190.73:80 | crl.microsoft.com | tcp |
Files
\Users\Admin\AppData\Local\Temp\nsjB5F8.tmp\System.dll
| MD5 | c9473cb90d79a374b2ba6040ca16e45c |
| SHA1 | ab95b54f12796dce57210d65f05124a6ed81234a |
| SHA256 | b80a5cba69d1853ed5979b0ca0352437bf368a5cfb86cb4528edadd410e11352 |
| SHA512 | eafe7d5894622bc21f663bca4dd594392ee0f5b29270b6b56b0187093d6a3a103545464ff6398ad32d2cf15dab79b1f133218ba9ba337ddc01330b5ada804d7b |
memory/1832-20-0x00000000034C0000-0x00000000055C3000-memory.dmp
memory/1832-22-0x0000000077A00000-0x0000000077BA9000-memory.dmp
memory/1832-21-0x0000000077A01000-0x0000000077B02000-memory.dmp
memory/1832-24-0x00000000034C0000-0x00000000055C3000-memory.dmp
memory/1832-23-0x0000000077BF0000-0x0000000077CC6000-memory.dmp
memory/1832-25-0x00000000034C0000-0x00000000055C3000-memory.dmp
memory/2888-26-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2888-27-0x0000000077A00000-0x0000000077BA9000-memory.dmp
memory/2888-47-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2888-49-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2888-48-0x0000000000400000-0x0000000001462000-memory.dmp
memory/2888-50-0x0000000000400000-0x0000000001462000-memory.dmp