Malware Analysis Report

2024-10-19 09:23

Sample ID 240612-ckph3aydnf
Target 4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965
SHA256 4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965
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

4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965

Threat Level: Known bad

The file 4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965 was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

Reads user/profile data of web browsers

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-12 02:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 02:08

Reported

2024-06-12 02:10

Platform

win7-20240215-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.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 2384 set thread context of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.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:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2384 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\system32\WerFault.exe
PID 2384 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\system32\WerFault.exe
PID 2384 wrote to memory of 2172 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe

"C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.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 2384 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 mail.nsatech.co udp
DE 188.40.22.244:587 mail.nsatech.co tcp

Files

memory/2384-0-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

memory/2384-1-0x00000000001C0000-0x0000000000256000-memory.dmp

memory/2384-2-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

memory/1160-3-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1160-8-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1160-11-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1160-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1160-6-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1160-5-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1160-4-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1160-12-0x0000000000400000-0x0000000000442000-memory.dmp

memory/2384-13-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

memory/2384-14-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 02:08

Reported

2024-06-12 02:10

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

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:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4980 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 4980 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 4980 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 4980 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 4980 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 4980 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 4980 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
PID 4980 wrote to memory of 4004 N/A C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.exe

"C:\Users\Admin\AppData\Local\Temp\4c81475320e48a5ba2d483e200d1e5748fba7596ca3df92d4e803464bb186965.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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 mail.nsatech.co udp
DE 188.40.22.244:587 mail.nsatech.co tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 244.22.40.188.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 200.79.70.13.in-addr.arpa udp

Files

memory/4980-1-0x00007FFFAE803000-0x00007FFFAE805000-memory.dmp

memory/4980-0-0x000001CD261A0000-0x000001CD26236000-memory.dmp

memory/4980-2-0x00007FFFAE800000-0x00007FFFAF2C1000-memory.dmp

memory/4004-3-0x0000000000400000-0x0000000000442000-memory.dmp

memory/4004-4-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

memory/4004-5-0x0000000005750000-0x0000000005CF4000-memory.dmp

memory/4004-6-0x0000000005210000-0x0000000005276000-memory.dmp

memory/4004-7-0x0000000074BF0000-0x00000000753A0000-memory.dmp

memory/4980-8-0x00007FFFAE800000-0x00007FFFAF2C1000-memory.dmp

memory/4004-9-0x0000000006110000-0x0000000006160000-memory.dmp

memory/4004-10-0x0000000006200000-0x000000000629C000-memory.dmp

memory/4004-11-0x00000000065C0000-0x0000000006652000-memory.dmp

memory/4004-12-0x0000000006560000-0x000000000656A000-memory.dmp

memory/4004-13-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

memory/4004-14-0x0000000074BF0000-0x00000000753A0000-memory.dmp