Analysis Overview
SHA256
c24a8416ac35c87dd30e5812dafec562b358f87382dfd5100cb62bf20b5c34a4
Threat Level: Known bad
The file e970733f711e16e343dffe889bff12e9 was found to be: Known bad.
Malicious Activity Summary
FakeAV payload
FakeAV, RogueAntivirus
Fakeav family
FakeAV payload
Checks computer location settings
UPX packed file
Executes dropped EXE
Adds Run key to start application
Drops file in System32 directory
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-28 16:29
Signatures
FakeAV payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Fakeav family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-28 16:29
Reported
2024-01-03 05:22
Platform
win7-20231215-en
Max time kernel
141s
Max time network
126s
Command Line
Signatures
FakeAV, RogueAntivirus
FakeAV payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\KeyGen.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CSRLT.EXE = "C:\\Windows\\system32\\CSRLT.EXE" | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\MSBLT.EXE = "C:\\Windows\\MSBLT.EXE" | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\CSRLT.EXE | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\CSRLT.EXE | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\MSBLT.EXE | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
| File opened for modification | C:\Windows\MSBLT.EXE | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
| File created | C:\Windows\KeyGen.exe | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\KeyGen.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\KeyGen.exe | N/A |
| N/A | N/A | C:\Windows\KeyGen.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2200 wrote to memory of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | C:\Windows\KeyGen.exe |
| PID 2200 wrote to memory of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | C:\Windows\KeyGen.exe |
| PID 2200 wrote to memory of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | C:\Windows\KeyGen.exe |
| PID 2200 wrote to memory of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | C:\Windows\KeyGen.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe
"C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe"
C:\Windows\KeyGen.exe
"C:\Windows\KeyGen.exe"
Network
Files
memory/2200-0-0x0000000000170000-0x0000000000171000-memory.dmp
memory/2296-13-0x0000000000400000-0x000000000041F000-memory.dmp
C:\Windows\KeyGen.exe
| MD5 | e3c7d489013b51c671aa79c9068a2a00 |
| SHA1 | deed13e52afcc9fd2ef326fb6b0aa4bf7fcf14be |
| SHA256 | 5ea232ac5ebca4584f8689d5a1ed466404272a5c5496f41934537504368b5da2 |
| SHA512 | 18a31ffcc796d6352142374dc0e12d83b9b46d56069a5db26a38b0f6a133302f13d7064bfe9bc16e7a705aeeb2cec2d654863d92280a6085c8202a3c8096b240 |
memory/2200-8-0x0000000002D70000-0x0000000002D8F000-memory.dmp
memory/2200-14-0x0000000002D70000-0x0000000002D8F000-memory.dmp
memory/2200-15-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2296-16-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-17-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-18-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-19-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-20-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-21-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-22-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-23-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-24-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-25-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-26-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-27-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-28-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-29-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-30-0x0000000000400000-0x000000000041F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-28 16:29
Reported
2024-01-03 05:24
Platform
win10v2004-20231215-en
Max time kernel
220s
Max time network
245s
Command Line
Signatures
FakeAV, RogueAntivirus
FakeAV payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\KeyGen.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CSRLT.EXE = "C:\\Windows\\system32\\CSRLT.EXE" | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\MSBLT.EXE = "C:\\Windows\\MSBLT.EXE" | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\CSRLT.EXE | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\CSRLT.EXE | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\MSBLT.EXE | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
| File created | C:\Windows\KeyGen.exe | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
| File created | C:\Windows\MSBLT.EXE | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | N/A |
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\KeyGen.exe | N/A |
| N/A | N/A | C:\Windows\KeyGen.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2012 wrote to memory of 4712 | N/A | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | C:\Windows\KeyGen.exe |
| PID 2012 wrote to memory of 4712 | N/A | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | C:\Windows\KeyGen.exe |
| PID 2012 wrote to memory of 4712 | N/A | C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe | C:\Windows\KeyGen.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe
"C:\Users\Admin\AppData\Local\Temp\e970733f711e16e343dffe889bff12e9.exe"
C:\Windows\KeyGen.exe
"C:\Windows\KeyGen.exe"
Network
| Country | Destination | Domain | Proto |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 147.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.53.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.173.189.20.in-addr.arpa | udp |
Files
memory/2012-0-0x0000000000640000-0x0000000000641000-memory.dmp
memory/2012-1-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2012-7-0x0000000000400000-0x00000000004C8000-memory.dmp
C:\Windows\KeyGen.exe
| MD5 | e3c7d489013b51c671aa79c9068a2a00 |
| SHA1 | deed13e52afcc9fd2ef326fb6b0aa4bf7fcf14be |
| SHA256 | 5ea232ac5ebca4584f8689d5a1ed466404272a5c5496f41934537504368b5da2 |
| SHA512 | 18a31ffcc796d6352142374dc0e12d83b9b46d56069a5db26a38b0f6a133302f13d7064bfe9bc16e7a705aeeb2cec2d654863d92280a6085c8202a3c8096b240 |
memory/4712-18-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2012-19-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/4712-21-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2012-22-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/4712-23-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4712-24-0x0000000000400000-0x000000000041F000-memory.dmp