Malware Analysis Report

2024-11-13 14:25

Sample ID 210928-tn15pscdep
Target s.exe
SHA256 3b347a4641e8553c4ecbee8e6d86c32311cd9348d61eb55929aae076e82f96c3
Tags
echelon evasion spyware stealer themida trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3b347a4641e8553c4ecbee8e6d86c32311cd9348d61eb55929aae076e82f96c3

Threat Level: Known bad

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

Malicious Activity Summary

echelon evasion spyware stealer themida trojan

Echelon

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

Reads user/profile data of web browsers

Themida packer

Checks BIOS information in registry

Checks whether UAC is enabled

Suspicious use of NtSetInformationThreadHideFromDebugger

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-09-28 16:13

Signatures

Themida packer

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

Analysis: behavioral2

Detonation Overview

Submitted

2021-09-28 16:12

Reported

2021-09-28 16:15

Platform

win10-en-20210920

Max time kernel

114s

Max time network

119s

Command Line

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

Signatures

Echelon

stealer spyware echelon

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

evasion

Checks BIOS information in registry

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

Reads user/profile data of web browsers

spyware stealer

Themida packer

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

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\s.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\s.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WerFault.exe N/A

Processes

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 2524

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.api.mega.co.nz udp
LU 66.203.125.15:443 g.api.mega.co.nz tcp

Files

memory/2276-115-0x0000000077CD0000-0x0000000077E5E000-memory.dmp

memory/2276-117-0x0000000000130000-0x0000000000131000-memory.dmp

memory/2276-119-0x0000000005740000-0x0000000005741000-memory.dmp

memory/2276-120-0x00000000059A0000-0x00000000059A1000-memory.dmp

memory/2276-121-0x0000000006350000-0x0000000006351000-memory.dmp

memory/2276-122-0x0000000005EC0000-0x0000000005EC1000-memory.dmp

memory/2276-123-0x0000000006850000-0x0000000006851000-memory.dmp

memory/2276-124-0x00000000059A3000-0x00000000059A5000-memory.dmp

memory/2276-125-0x00000000059A5000-0x00000000059A6000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2021-09-28 16:12

Reported

2021-09-28 16:16

Platform

win7v20210408

Max time kernel

152s

Max time network

163s

Command Line

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

Signatures

Echelon

stealer spyware echelon

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

evasion

Checks BIOS information in registry

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

Themida packer

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

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\s.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\s.exe N/A

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.api.mega.co.nz udp
LU 66.203.125.11:443 g.api.mega.co.nz tcp

Files

memory/1924-60-0x0000000076691000-0x0000000076693000-memory.dmp

memory/1924-62-0x0000000000C10000-0x0000000000C11000-memory.dmp

memory/1924-64-0x0000000005E90000-0x0000000005E91000-memory.dmp

memory/1924-65-0x0000000005E95000-0x0000000005EA6000-memory.dmp

memory/1924-66-0x0000000005EA6000-0x0000000005EA7000-memory.dmp

memory/1924-67-0x0000000005EA7000-0x0000000005EA8000-memory.dmp

memory/1924-68-0x0000000005EA8000-0x0000000005EA9000-memory.dmp

memory/1924-69-0x0000000005EA9000-0x0000000005EAA000-memory.dmp

memory/1924-70-0x0000000005EAA000-0x0000000005EAB000-memory.dmp

memory/1924-71-0x0000000005EAB000-0x0000000005EAC000-memory.dmp

memory/1924-72-0x0000000005EAC000-0x0000000005EAD000-memory.dmp

memory/1924-73-0x0000000005EAD000-0x0000000005EAE000-memory.dmp

memory/1924-74-0x0000000005EAE000-0x0000000005EAF000-memory.dmp

memory/1924-75-0x0000000005EAF000-0x0000000005EB0000-memory.dmp

memory/1924-76-0x0000000005EB0000-0x0000000005EB1000-memory.dmp

memory/1924-77-0x0000000005EB1000-0x0000000005EB2000-memory.dmp

memory/1924-78-0x0000000005EB2000-0x0000000005EB3000-memory.dmp

memory/1924-79-0x0000000005EB3000-0x0000000005EB4000-memory.dmp

memory/1924-80-0x0000000005EB4000-0x0000000005EB5000-memory.dmp

memory/1924-81-0x0000000005EB5000-0x0000000005EB6000-memory.dmp

memory/1924-82-0x0000000005EB6000-0x0000000005EB8000-memory.dmp

memory/1924-83-0x0000000005EB8000-0x0000000005EBA000-memory.dmp