Malware Analysis Report

2024-11-30 07:07

Sample ID 240601-h2banadf3v
Target YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe
SHA256 15c04e22491f8e845da0adff79abd677fc12388ccea0f7c031c679ef175e3228
Tags
agenttesla keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

15c04e22491f8e845da0adff79abd677fc12388ccea0f7c031c679ef175e3228

Threat Level: Known bad

The file YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

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 behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-01 07:13

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 07:13

Reported

2024-06-01 07:16

Platform

win7-20240221-en

Max time kernel

117s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2120 set thread context of 1988 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

Description Indicator Process Target
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 1988 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2120 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\system32\WerFault.exe
PID 2120 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\system32\WerFault.exe
PID 2120 wrote to memory of 2616 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\system32\WerFault.exe

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\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2120 -s 660

Network

N/A

Files

memory/2120-0-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

memory/2120-1-0x00000000002C0000-0x00000000002CA000-memory.dmp

memory/2120-2-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

memory/2120-3-0x000000001B290000-0x000000001B324000-memory.dmp

memory/1988-5-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1988-13-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1988-17-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1988-15-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1988-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1988-10-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1988-8-0x0000000000400000-0x0000000000440000-memory.dmp

memory/1988-6-0x0000000000400000-0x0000000000440000-memory.dmp

memory/2120-18-0x000007FEF5DA3000-0x000007FEF5DA4000-memory.dmp

memory/2120-19-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 07:13

Reported

2024-06-01 07:16

Platform

win10v2004-20240426-en

Max time kernel

91s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2868 set thread context of 660 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.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\AddInProcess32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2868 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 660 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 2868 wrote to memory of 1952 N/A C:\Users\Admin\AppData\Local\Temp\YapiKrediInternetBankaciligi_Dekont_20240531_266_40240020.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

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\AddInProcess32.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"

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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 16.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/2868-0-0x0000029673A20000-0x0000029673A2A000-memory.dmp

memory/2868-1-0x00007FFAE00E3000-0x00007FFAE00E5000-memory.dmp

memory/2868-2-0x0000029675750000-0x00000296757E4000-memory.dmp

memory/2868-3-0x00007FFAE00E0000-0x00007FFAE0BA1000-memory.dmp

memory/660-4-0x0000000000400000-0x0000000000440000-memory.dmp

memory/660-5-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

memory/660-6-0x0000000005A10000-0x0000000005FB4000-memory.dmp

memory/660-7-0x00000000054D0000-0x0000000005536000-memory.dmp

memory/660-8-0x0000000074EC0000-0x0000000075670000-memory.dmp

memory/2868-9-0x00007FFAE00E0000-0x00007FFAE0BA1000-memory.dmp

memory/660-10-0x00000000062C0000-0x0000000006310000-memory.dmp

memory/660-11-0x00000000063B0000-0x0000000006442000-memory.dmp

memory/660-12-0x0000000006540000-0x000000000654A000-memory.dmp

memory/660-13-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

memory/660-14-0x0000000074EC0000-0x0000000075670000-memory.dmp