Malware Analysis Report

2025-03-15 03:56

Sample ID 240520-3lg4gsbb78
Target f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305
SHA256 f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305
Tags
themida amadey 18befc evasion 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

f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305

Threat Level: Known bad

The file f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305 was found to be: Known bad.

Malicious Activity Summary

themida amadey 18befc evasion trojan

Amadey

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

Checks BIOS information in registry

Checks computer location settings

Executes dropped EXE

Themida packer

Checks whether UAC is enabled

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-20 23:35

Signatures

Themida packer

themida
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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-20 23:35

Reported

2024-05-20 23:38

Platform

win10v2004-20240226-en

Max time kernel

148s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe"

Signatures

Amadey

trojan amadey

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\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A

Themida packer

themida
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
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
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
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
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
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
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
N/A N/A N/A N/A
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\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\explorku.job C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe

"C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe"

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.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 --no-appcompat-clear --mojo-platform-channel-handle=1036 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
RU 5.42.96.141:80 5.42.96.141 tcp
US 8.8.8.8:53 141.96.42.5.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.187.202:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 202.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 15.173.189.20.in-addr.arpa udp

Files

memory/3968-0-0x0000000000870000-0x0000000000DB3000-memory.dmp

memory/3968-2-0x0000000000870000-0x0000000000DB3000-memory.dmp

memory/3968-1-0x0000000000870000-0x0000000000DB3000-memory.dmp

memory/3968-3-0x0000000000870000-0x0000000000DB3000-memory.dmp

memory/3968-4-0x0000000000870000-0x0000000000DB3000-memory.dmp

memory/3968-6-0x0000000000870000-0x0000000000DB3000-memory.dmp

memory/3968-5-0x0000000000870000-0x0000000000DB3000-memory.dmp

memory/3968-7-0x0000000000870000-0x0000000000DB3000-memory.dmp

memory/3968-9-0x0000000000870000-0x0000000000DB3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

MD5 78412b51f722a9287a33b9b2cf0fb3da
SHA1 ea81817341ed47ad8e582faedad37607e14f07c9
SHA256 f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305
SHA512 94240dab206080783418d30c2eb3dc9de4a277dc65fd75d5fb9568cc1de567e6a9e8d9440a30a4763d72e526986ce9b6eea2c459b476baf78440846d1e2e79b0

memory/3968-21-0x0000000000870000-0x0000000000DB3000-memory.dmp

memory/944-22-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/944-23-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/944-24-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/944-25-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/944-26-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/944-28-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/944-29-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/944-27-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/944-30-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/3592-35-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/3592-36-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/3592-37-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/3592-38-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/3592-39-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/3592-42-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/3592-40-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/3592-41-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/3592-44-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/1884-52-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/1884-53-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/1884-55-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/1884-58-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/1884-56-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/1884-57-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/1884-54-0x0000000000C20000-0x0000000001163000-memory.dmp

memory/1884-59-0x0000000000C20000-0x0000000001163000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-20 23:35

Reported

2024-05-20 23:38

Platform

win11-20240426-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe"

Signatures

Amadey

trojan amadey

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\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A

Themida packer

themida
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
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
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
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
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
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
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
N/A N/A N/A N/A
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\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Tasks\explorku.job C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe

"C:\Users\Admin\AppData\Local\Temp\f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305.exe"

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

Network

Country Destination Domain Proto
RU 5.42.96.141:80 5.42.96.141 tcp
US 8.8.8.8:53 141.96.42.5.in-addr.arpa udp
IE 52.111.236.22:443 tcp

Files

memory/4540-0-0x0000000000690000-0x0000000000BD3000-memory.dmp

memory/4540-1-0x0000000000690000-0x0000000000BD3000-memory.dmp

memory/4540-2-0x0000000000690000-0x0000000000BD3000-memory.dmp

memory/4540-3-0x0000000000690000-0x0000000000BD3000-memory.dmp

memory/4540-6-0x0000000000690000-0x0000000000BD3000-memory.dmp

memory/4540-7-0x0000000000690000-0x0000000000BD3000-memory.dmp

memory/4540-5-0x0000000000690000-0x0000000000BD3000-memory.dmp

memory/4540-4-0x0000000000690000-0x0000000000BD3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe

MD5 78412b51f722a9287a33b9b2cf0fb3da
SHA1 ea81817341ed47ad8e582faedad37607e14f07c9
SHA256 f7b1ae68995f7564723849e8c00f6eeb054316721049038177e5fbf7fd473305
SHA512 94240dab206080783418d30c2eb3dc9de4a277dc65fd75d5fb9568cc1de567e6a9e8d9440a30a4763d72e526986ce9b6eea2c459b476baf78440846d1e2e79b0

memory/4540-19-0x0000000000690000-0x0000000000BD3000-memory.dmp

memory/3576-23-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/3576-26-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/3576-27-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/3576-25-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/3576-24-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/3576-22-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/3576-21-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/3576-28-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/3576-29-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/1348-36-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/1348-35-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/1348-37-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/1348-38-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/1348-40-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/1348-42-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/1348-41-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/1348-39-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/1348-44-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/412-52-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/412-55-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/412-58-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/412-56-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/412-54-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/412-53-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/412-57-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/412-59-0x0000000000490000-0x00000000009D3000-memory.dmp

memory/412-61-0x0000000000490000-0x00000000009D3000-memory.dmp