Analysis Overview
SHA256
15c04e22491f8e845da0adff79abd677fc12388ccea0f7c031c679ef175e3228
Threat Level: Known bad
The file YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe was found to be: Known bad.
Malicious Activity Summary
AgentTesla
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads WinSCP keys stored on the system
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-01 07:18
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-01 07:18
Reported
2024-06-01 07:20
Platform
win7-20240220-en
Max time kernel
122s
Max time network
123s
Command Line
Signatures
AgentTesla
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2208 set thread context of 1744 | N/A | C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe
"C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2208 -s 652
Network
Files
memory/2208-0-0x000007FEF5BA3000-0x000007FEF5BA4000-memory.dmp
memory/2208-1-0x0000000001160000-0x000000000116A000-memory.dmp
memory/2208-2-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp
memory/2208-3-0x0000000000EC0000-0x0000000000F54000-memory.dmp
memory/1744-4-0x0000000000400000-0x0000000000440000-memory.dmp
memory/1744-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1744-17-0x0000000000400000-0x0000000000440000-memory.dmp
memory/1744-13-0x0000000000400000-0x0000000000440000-memory.dmp
memory/1744-10-0x0000000000400000-0x0000000000440000-memory.dmp
memory/1744-8-0x0000000000400000-0x0000000000440000-memory.dmp
memory/1744-15-0x0000000000400000-0x0000000000440000-memory.dmp
memory/1744-6-0x0000000000400000-0x0000000000440000-memory.dmp
memory/1744-18-0x000000007488E000-0x000000007488F000-memory.dmp
memory/1744-19-0x0000000074880000-0x0000000074F6E000-memory.dmp
memory/2208-20-0x000007FEF5BA3000-0x000007FEF5BA4000-memory.dmp
memory/2208-21-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp
memory/1744-22-0x000000007488E000-0x000000007488F000-memory.dmp
memory/1744-23-0x0000000074880000-0x0000000074F6E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-01 07:18
Reported
2024-06-01 07:20
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
100s
Command Line
Signatures
AgentTesla
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 700 set thread context of 4612 | N/A | C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe
"C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| NL | 52.111.243.29:443 | tcp | |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
Files
memory/700-1-0x00007FFE7DFB3000-0x00007FFE7DFB5000-memory.dmp
memory/700-0-0x00000271AFF70000-0x00000271AFF7A000-memory.dmp
memory/700-2-0x00000271CA4D0000-0x00000271CA564000-memory.dmp
memory/700-3-0x00007FFE7DFB0000-0x00007FFE7EA71000-memory.dmp
memory/4612-4-0x0000000000400000-0x0000000000440000-memory.dmp
memory/4612-5-0x0000000074D5E000-0x0000000074D5F000-memory.dmp
memory/4612-6-0x00000000057F0000-0x0000000005D94000-memory.dmp
memory/4612-7-0x0000000005240000-0x00000000052A6000-memory.dmp
memory/4612-8-0x0000000074D50000-0x0000000075500000-memory.dmp
memory/700-9-0x00007FFE7DFB0000-0x00007FFE7EA71000-memory.dmp
memory/4612-10-0x0000000006230000-0x0000000006280000-memory.dmp
memory/4612-11-0x0000000006320000-0x00000000063B2000-memory.dmp
memory/4612-12-0x00000000064E0000-0x00000000064EA000-memory.dmp
memory/4612-13-0x0000000074D5E000-0x0000000074D5F000-memory.dmp
memory/4612-14-0x0000000074D50000-0x0000000075500000-memory.dmp