Analysis Overview
SHA256
8085c17ea9441ff19ee1d021408ce2b159bdf4d53704a9afd180e76033c74415
Threat Level: Known bad
The file rTransferenciarealizada451236.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
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Drops file in Windows directory
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Program crash
NSIS installer
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-30 00:07
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: behavioral1
Detonation Overview
Submitted
2024-10-30 00:07
Reported
2024-10-30 00:10
Platform
win7-20241010-en
Max time kernel
123s
Max time network
130s
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 2596 set thread context of 1692 | 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
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.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\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"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1692 -s 68
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 |
Files
\Users\Admin\AppData\Local\Temp\nszEE56.tmp\System.dll
| MD5 | c9473cb90d79a374b2ba6040ca16e45c |
| SHA1 | ab95b54f12796dce57210d65f05124a6ed81234a |
| SHA256 | b80a5cba69d1853ed5979b0ca0352437bf368a5cfb86cb4528edadd410e11352 |
| SHA512 | eafe7d5894622bc21f663bca4dd594392ee0f5b29270b6b56b0187093d6a3a103545464ff6398ad32d2cf15dab79b1f133218ba9ba337ddc01330b5ada804d7b |
memory/2596-20-0x0000000002C80000-0x0000000004D83000-memory.dmp
memory/2596-21-0x0000000002C80000-0x0000000004D83000-memory.dmp
memory/2596-23-0x00000000772F0000-0x0000000077499000-memory.dmp
memory/2596-22-0x00000000772F1000-0x00000000773F2000-memory.dmp
memory/2596-25-0x0000000002C80000-0x0000000004D83000-memory.dmp
memory/1692-26-0x00000000772F0000-0x0000000077499000-memory.dmp
memory/1692-24-0x0000000000400000-0x0000000001462000-memory.dmp
memory/1692-48-0x0000000000400000-0x0000000001462000-memory.dmp
memory/1692-49-0x0000000000400000-0x0000000001462000-memory.dmp
memory/1692-50-0x0000000000400000-0x0000000001462000-memory.dmp
memory/1692-52-0x0000000000400000-0x0000000001462000-memory.dmp
memory/1692-51-0x0000000000400000-0x0000000001462000-memory.dmp
memory/1692-53-0x0000000000400000-0x0000000001462000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-30 00:07
Reported
2024-10-30 00:10
Platform
win10v2004-20241007-en
Max time kernel
150s
Max time network
151s
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 1580 set thread context of 3984 | 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\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 |
| 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 |
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\rTransferenciarealizada451236.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\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 1580 wrote to memory of 3984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
| PID 1580 wrote to memory of 3984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
| PID 1580 wrote to memory of 3984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
| PID 1580 wrote to memory of 3984 | N/A | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe | C:\Users\Admin\AppData\Local\Temp\rTransferenciarealizada451236.exe |
| PID 1580 wrote to memory of 3984 | 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"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3984 -ip 3984
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 1048
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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 69.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.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 | 142.250.180.3:80 | 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 | 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 | 212.20.149.52.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 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.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 | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsp8500.tmp\System.dll
| MD5 | c9473cb90d79a374b2ba6040ca16e45c |
| SHA1 | ab95b54f12796dce57210d65f05124a6ed81234a |
| SHA256 | b80a5cba69d1853ed5979b0ca0352437bf368a5cfb86cb4528edadd410e11352 |
| SHA512 | eafe7d5894622bc21f663bca4dd594392ee0f5b29270b6b56b0187093d6a3a103545464ff6398ad32d2cf15dab79b1f133218ba9ba337ddc01330b5ada804d7b |
memory/1580-18-0x00000000031C0000-0x00000000052C3000-memory.dmp
memory/1580-19-0x00000000031C0000-0x00000000052C3000-memory.dmp
memory/1580-20-0x0000000076E61000-0x0000000076F81000-memory.dmp
memory/1580-21-0x0000000010004000-0x0000000010005000-memory.dmp
memory/1580-22-0x00000000031C0000-0x00000000052C3000-memory.dmp
memory/3984-23-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3984-24-0x0000000001660000-0x0000000003763000-memory.dmp
memory/3984-37-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3984-38-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3984-39-0x0000000001660000-0x0000000003763000-memory.dmp
memory/3984-40-0x0000000076E61000-0x0000000076F81000-memory.dmp
memory/3984-41-0x0000000000400000-0x0000000001654000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-10-30 00:07
Reported
2024-10-30 00:10
Platform
win7-20240708-en
Max time kernel
117s
Max time network
118s
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 2248 -s 224
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-10-30 00:07
Reported
2024-10-30 00:10
Platform
win10v2004-20241007-en
Max time kernel
138s
Max time network
152s
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 3628 wrote to memory of 3632 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3628 wrote to memory of 3632 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 3628 wrote to memory of 3632 | 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 3632 -ip 3632
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3632 -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 | 97.17.167.52.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 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.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 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.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 |