Malware Analysis Report

2025-05-28 16:27

Sample ID 230710-w33yyscf88
Target Arsenic.zip
SHA256 49baf01ac7b25976cc78119c8c9f80f28f5fa45bac6def9f4bdc9793c9b2c960
Tags
agilenet evasion themida
score
9/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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
9/10

SHA256

49baf01ac7b25976cc78119c8c9f80f28f5fa45bac6def9f4bdc9793c9b2c960

Threat Level: Likely malicious

The file Arsenic.zip was found to be: Likely malicious.

Malicious Activity Summary

agilenet evasion themida

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Obfuscated with Agile.Net obfuscator

Loads dropped DLL

Themida packer

Checks BIOS information in registry

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Enumerates system info in registry

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-07-10 18:27

Signatures

Obfuscated with Agile.Net obfuscator

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-07-10 18:27

Reported

2023-07-10 18:58

Platform

win7-20230705-en

Max time kernel

1610s

Max time network

1615s

Command Line

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\Arsenic.zip

Signatures

N/A

Processes

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\Arsenic.zip

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-07-10 18:27

Reported

2023-07-10 18:58

Platform

win10v2004-20230703-en

Max time kernel

1797s

Max time network

1156s

Command Line

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\Arsenic.zip

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\Desktop\Arsenic\Arsenic.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\Desktop\Arsenic\Arsenic.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\Desktop\Arsenic\Arsenic.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\Desktop\Arsenic\Arsenic.exe N/A

Themida packer

themida
Description Indicator Process Target
N/A N/A N/A N/A
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Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\Desktop\Arsenic\Arsenic.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion C:\Users\Admin\Desktop\Arsenic\Arsenic.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\Desktop\Arsenic\Arsenic.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer C:\Users\Admin\Desktop\Arsenic\Arsenic.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\wmic.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\Desktop\Arsenic\Arsenic.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4564 wrote to memory of 1304 N/A C:\Users\Admin\Desktop\Arsenic\Arsenic.exe C:\Windows\System32\Wbem\wmic.exe
PID 4564 wrote to memory of 1304 N/A C:\Users\Admin\Desktop\Arsenic\Arsenic.exe C:\Windows\System32\Wbem\wmic.exe

Processes

C:\Windows\Explorer.exe

C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\Arsenic.zip

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Users\Admin\Desktop\Arsenic\Arsenic.exe

"C:\Users\Admin\Desktop\Arsenic\Arsenic.exe"

C:\Windows\System32\Wbem\wmic.exe

"wmic.exe" csproduct get uuid

Network

Country Destination Domain Proto
US 8.8.8.8:53 assets.msn.com udp
DE 2.16.186.232:443 assets.msn.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 232.186.16.2.in-addr.arpa udp
US 8.8.8.8:53 141.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 phoenix.5v.pl udp
FR 37.187.156.46:443 phoenix.5v.pl tcp
US 8.8.8.8:53 46.156.187.37.in-addr.arpa udp
US 8.8.8.8:53 203.151.224.20.in-addr.arpa udp
US 8.8.8.8:53 26.178.89.13.in-addr.arpa udp

Files

memory/4564-133-0x000001E794210000-0x000001E794ED8000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\6c49532e-e21f-4380-bf48-33c3b4686956\Arsenic.dll

MD5 05b012457488a95a05d0541e0470d392
SHA1 74f541d6a8365508c794ef7b4ac7c297457f9ce3
SHA256 1f77a0749ac730500f203b8c4d072587923ac679e184a3859aeb855c2a2e7d8d
SHA512 6d6e7b838d4425d49ac8d3738135374ef5357f0677b07cecb7afbf5feddc1997bf6dce68d48787eff8a74c4728def8880c8f01842eda35b5815fb561fa401ae6

C:\Users\Admin\AppData\Local\Temp\6c49532e-e21f-4380-bf48-33c3b4686956\Arsenic.dll

MD5 05b012457488a95a05d0541e0470d392
SHA1 74f541d6a8365508c794ef7b4ac7c297457f9ce3
SHA256 1f77a0749ac730500f203b8c4d072587923ac679e184a3859aeb855c2a2e7d8d
SHA512 6d6e7b838d4425d49ac8d3738135374ef5357f0677b07cecb7afbf5feddc1997bf6dce68d48787eff8a74c4728def8880c8f01842eda35b5815fb561fa401ae6

memory/4564-141-0x000001E795330000-0x000001E795340000-memory.dmp

memory/4564-142-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-144-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-145-0x00007FF8546B0000-0x00007FF8547FE000-memory.dmp

memory/4564-146-0x000001E7B2EC0000-0x000001E7B2F10000-memory.dmp

memory/4564-147-0x000001E7B30D0000-0x000001E7B3146000-memory.dmp

memory/4564-148-0x000001E795330000-0x000001E795340000-memory.dmp

memory/4564-149-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-150-0x000001E795330000-0x000001E795340000-memory.dmp

memory/4564-151-0x000001E795330000-0x000001E795340000-memory.dmp

memory/4564-153-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-154-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-159-0x000001E795330000-0x000001E795340000-memory.dmp

memory/4564-161-0x000001E795330000-0x000001E795340000-memory.dmp

memory/4564-163-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-165-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-166-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-183-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-189-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-193-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-199-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp

memory/4564-213-0x00007FF84DAC0000-0x00007FF84E644000-memory.dmp