Analysis Overview
SHA256
8dc8ce02d710e0b9c80b8fbe76407b113bacb15ec724ef06e5871558f97d3064
Threat Level: Known bad
The file 74c58bb31f4434bd81b67d9d5e9093c9 was found to be: Known bad.
Malicious Activity Summary
FakeAV payload
Fakeav family
FakeAV, RogueAntivirus
FakeAV payload
Adds Run key to start application
Drops file in System32 directory
Drops file in Windows directory
Unsigned PE
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-26 14:13
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
2023-12-26 14:13
Reported
2023-12-28 01:15
Platform
win7-20231129-en
Max time kernel
140s
Max time network
120s
Command Line
Signatures
FakeAV, RogueAntivirus
FakeAV payload
| Description | Indicator | Process | Target |
| 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\74c58bb31f4434bd81b67d9d5e9093c9.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\74c58bb31f4434bd81b67d9d5e9093c9.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\74c58bb31f4434bd81b67d9d5e9093c9.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\CSRLT.EXE | C:\Users\Admin\AppData\Local\Temp\74c58bb31f4434bd81b67d9d5e9093c9.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\MSBLT.EXE | C:\Users\Admin\AppData\Local\Temp\74c58bb31f4434bd81b67d9d5e9093c9.exe | N/A |
| File opened for modification | C:\Windows\MSBLT.EXE | C:\Users\Admin\AppData\Local\Temp\74c58bb31f4434bd81b67d9d5e9093c9.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\74c58bb31f4434bd81b67d9d5e9093c9.exe
"C:\Users\Admin\AppData\Local\Temp\74c58bb31f4434bd81b67d9d5e9093c9.exe"
Network
Files
memory/2180-0-0x0000000000100000-0x0000000000101000-memory.dmp
memory/2180-5-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2180-7-0x0000000000100000-0x0000000000101000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-26 14:13
Reported
2023-12-28 01:16
Platform
win10v2004-20231215-en
Max time kernel
145s
Max time network
158s
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 |
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\74c58bb31f4434bd81b67d9d5e9093c9.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\74c58bb31f4434bd81b67d9d5e9093c9.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\74c58bb31f4434bd81b67d9d5e9093c9.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\CSRLT.EXE | C:\Users\Admin\AppData\Local\Temp\74c58bb31f4434bd81b67d9d5e9093c9.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\74c58bb31f4434bd81b67d9d5e9093c9.exe | N/A |
| File created | C:\Windows\MSBLT.EXE | C:\Users\Admin\AppData\Local\Temp\74c58bb31f4434bd81b67d9d5e9093c9.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\74c58bb31f4434bd81b67d9d5e9093c9.exe
"C:\Users\Admin\AppData\Local\Temp\74c58bb31f4434bd81b67d9d5e9093c9.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.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 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.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 | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 5.173.189.20.in-addr.arpa | udp |
Files
memory/696-0-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/696-1-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/696-2-0x0000000000620000-0x0000000000621000-memory.dmp
memory/696-7-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/696-10-0x0000000000620000-0x0000000000621000-memory.dmp