Malware Analysis Report

2024-10-19 09:23

Sample ID 240612-cx1f4ayfrc
Target e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe
SHA256 e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56
Tags
agenttesla keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56

Threat Level: Known bad

The file e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe was found to be: Known bad.

Malicious Activity Summary

agenttesla keylogger spyware stealer trojan

AgentTesla

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

Detects executables packed with or use KoiVM

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

Detect packed .NET executables. Mostly AgentTeslaV4.

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

Detects executables referencing Windows vault credential objects. Observed in infostealers

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

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-12 02:28

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 02:28

Reported

2024-06-12 02:30

Platform

win7-20240419-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2256 set thread context of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2256 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2256 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2256 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2256 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2256 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2256 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2256 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2256 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2256 wrote to memory of 3000 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2256 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\system32\WerFault.exe
PID 2256 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\system32\WerFault.exe
PID 2256 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe

"C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe"

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

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2256 -s 680

Network

N/A

Files

memory/2256-0-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

memory/2256-1-0x00000000008C0000-0x00000000008CC000-memory.dmp

memory/2256-2-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

memory/2256-3-0x0000000002060000-0x00000000020F4000-memory.dmp

memory/3000-4-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3000-5-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3000-9-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3000-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3000-13-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3000-7-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3000-6-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3000-11-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3000-14-0x000000007414E000-0x000000007414F000-memory.dmp

memory/3000-15-0x0000000074140000-0x000000007482E000-memory.dmp

memory/2256-16-0x000007FEF55F3000-0x000007FEF55F4000-memory.dmp

memory/2256-17-0x000007FEF55F0000-0x000007FEF5FDC000-memory.dmp

memory/3000-18-0x000000007414E000-0x000000007414F000-memory.dmp

memory/3000-19-0x0000000074140000-0x000000007482E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 02:28

Reported

2024-06-12 02:30

Platform

win10v2004-20240611-en

Max time kernel

131s

Max time network

133s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 740 set thread context of 3348 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 740 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 3348 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 1796 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 1796 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 740 wrote to memory of 1796 N/A C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe

"C:\Users\Admin\AppData\Local\Temp\e663374bbd68568700dfce770daed6e7b19454d17f71764bffdb9a5dc4c34e56.exe"

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

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

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3856,i,12594301322143882025,16832588342008839449,262144 --variations-seed-version --mojo-platform-channel-handle=4288 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 cp8nl.hyperhost.ua udp
NL 185.174.175.187:587 cp8nl.hyperhost.ua tcp
US 8.8.8.8:53 187.175.174.185.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp

Files

memory/740-0-0x00007FFFAC213000-0x00007FFFAC215000-memory.dmp

memory/740-1-0x00000251EE420000-0x00000251EE42C000-memory.dmp

memory/740-2-0x00007FFFAC210000-0x00007FFFACCD1000-memory.dmp

memory/740-3-0x00000251F1B30000-0x00000251F1BC4000-memory.dmp

memory/3348-4-0x0000000000400000-0x0000000000440000-memory.dmp

memory/3348-5-0x0000000074DAE000-0x0000000074DAF000-memory.dmp

memory/3348-6-0x0000000005590000-0x0000000005B34000-memory.dmp

memory/3348-7-0x0000000004FE0000-0x0000000005046000-memory.dmp

memory/3348-8-0x0000000074DA0000-0x0000000075550000-memory.dmp

memory/740-9-0x00007FFFAC210000-0x00007FFFACCD1000-memory.dmp

memory/3348-10-0x0000000005EC0000-0x0000000005F10000-memory.dmp

memory/3348-11-0x0000000005FB0000-0x000000000604C000-memory.dmp

memory/3348-12-0x0000000006470000-0x0000000006502000-memory.dmp

memory/3348-13-0x0000000006420000-0x000000000642A000-memory.dmp

memory/3348-14-0x0000000074DAE000-0x0000000074DAF000-memory.dmp

memory/3348-15-0x0000000074DA0000-0x0000000075550000-memory.dmp