Malware Analysis Report

2024-10-23 21:59

Sample ID 240612-ccfwysyckp
Target a0a7a1d5d75aea9c08518326729af19a3066114db615418d1a13a4af7b6ee59b.rar
SHA256 a0a7a1d5d75aea9c08518326729af19a3066114db615418d1a13a4af7b6ee59b
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

a0a7a1d5d75aea9c08518326729af19a3066114db615418d1a13a4af7b6ee59b

Threat Level: Known bad

The file a0a7a1d5d75aea9c08518326729af19a3066114db615418d1a13a4af7b6ee59b.rar was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Detects executables referencing Windows vault credential objects. Observed in infostealers

Detect packed .NET executables. Mostly AgentTeslaV4.

Detects executables referencing many email and collaboration clients. Observed in information stealers

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Detects executables packed with or use KoiVM

Detects executables referencing many file transfer clients. Observed in information stealers

Reads data files stored by FTP clients

Reads user/profile data of local email clients

Reads WinSCP keys stored on the system

Reads user/profile data of web browsers

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 01:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 01:55

Reported

2024-06-12 01:58

Platform

win7-20240419-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Detect packed .NET executables. Mostly AgentTeslaV4.

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

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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

Detects executables packed with or use KoiVM

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

Detects executables referencing Windows vault credential objects. Observed in infostealers

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

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

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

Detects executables referencing many email and collaboration clients. Observed in information stealers

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

Detects executables referencing many file transfer clients. Observed in information stealers

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

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 1736 set thread context of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.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 1736 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1736 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1736 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1736 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1736 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1736 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1736 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1736 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 1636 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 1736 wrote to memory of 2656 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe

"C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe"

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

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.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 mail.b-trust.org udp

Files

memory/1736-0-0x000007FEF60C3000-0x000007FEF60C4000-memory.dmp

memory/1736-1-0x00000000000C0000-0x0000000000316000-memory.dmp

memory/1736-2-0x000007FEF60C0000-0x000007FEF6AAC000-memory.dmp

memory/1736-3-0x00000000021E0000-0x0000000002276000-memory.dmp

memory/1980-6-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1980-5-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1980-4-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1980-8-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1636-19-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1736-22-0x000007FEF60C0000-0x000007FEF6AAC000-memory.dmp

memory/1636-18-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1636-21-0x0000000000400000-0x0000000000442000-memory.dmp

memory/1636-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 01:55

Reported

2024-06-12 01:58

Platform

win10v2004-20240611-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe"

Signatures

AgentTesla

keylogger trojan stealer spyware agenttesla

Detect packed .NET executables. Mostly AgentTeslaV4.

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

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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

Detects executables packed with or use KoiVM

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

Detects executables referencing Windows vault credential objects. Observed in infostealers

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

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

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

Detects executables referencing many email and collaboration clients. Observed in information stealers

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

Detects executables referencing many file transfer clients. Observed in information stealers

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

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 2308 set thread context of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.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 2308 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2308 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2308 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2308 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2308 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2308 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2308 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
PID 2308 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.exe

"C:\Users\Admin\AppData\Local\Temp\Product Order Inquiry - SSTF Co., Ltd #82928733.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 mail.b-trust.org udp
BG 193.41.190.42:25 mail.b-trust.org tcp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp

Files

memory/2308-0-0x00007FFD8D943000-0x00007FFD8D945000-memory.dmp

memory/2308-1-0x0000029DFADD0000-0x0000029DFB026000-memory.dmp

memory/2308-2-0x00007FFD8D940000-0x00007FFD8E401000-memory.dmp

memory/2308-3-0x0000029DFD7B0000-0x0000029DFD846000-memory.dmp

memory/4956-4-0x0000000000400000-0x0000000000442000-memory.dmp

memory/4956-5-0x000000007469E000-0x000000007469F000-memory.dmp

memory/4956-6-0x0000000005C10000-0x00000000061B4000-memory.dmp

memory/4956-7-0x0000000005760000-0x00000000057C6000-memory.dmp

memory/4956-8-0x0000000074690000-0x0000000074E40000-memory.dmp

memory/2308-9-0x00007FFD8D940000-0x00007FFD8E401000-memory.dmp

memory/4956-10-0x0000000006610000-0x0000000006660000-memory.dmp

memory/4956-11-0x0000000006700000-0x000000000679C000-memory.dmp

memory/4956-12-0x000000007469E000-0x000000007469F000-memory.dmp

memory/4956-13-0x0000000074690000-0x0000000074E40000-memory.dmp

memory/4956-14-0x0000000006AC0000-0x0000000006B52000-memory.dmp

memory/4956-15-0x0000000006A70000-0x0000000006A7A000-memory.dmp