amadey | ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857

Analysis

max time kernel
149s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
21-05-2024 22:04

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General

Target

ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe
Size

1.6MB
MD5

3e998278d93e45e1b586428f825920d4
SHA1

2f4e5a9b6692d24ce4b8832e64ee9fe94e61663f
SHA256

ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857
SHA512

e3f143ea0fadc62a5f00e805b56ef31afb62cdfafbf839fa821215bf6d04a943ab59650d288bddb92984b6dac6f0fe9e0039d531e241e0bd0eba5b2d1874d961
SSDEEP

49152:pAXzyXx9dnz6sDUmrenD8pzB4KbyUvkow8Sqma6K6:gWxPz68Um5zBBbtw8tB6

Score

10^/10

amadey 18befc evasion themida trojan

Malware Config

Extracted

Family

amadey

Version

4.20

Botnet

18befc

http://5.42.96.141

Attributes

install_dir
908f070dff
install_file
explorku.exe
strings_key
b25a9385246248a95c600f9a061438e1
url_paths
/go34ko8/index.php

rc4.plain

Signatures

Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
trojan amadey

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe

Checks BIOS information in registry 2 TTPs 8 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

4308 explorku.exe
4544 explorku.exe
3800 explorku.exe

pid	process
4308	explorku.exe
4544	explorku.exe
3800	explorku.exe

Themida packer 40 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/552-2-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
behavioral2/memory/552-0-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
behavioral2/memory/552-1-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
behavioral2/memory/552-3-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
behavioral2/memory/552-5-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
behavioral2/memory/552-8-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
behavioral2/memory/552-7-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
behavioral2/memory/552-6-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
behavioral2/memory/552-4-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/552-21-0x0000000000720000-0x0000000000C1C000-memory.dmp	themida
behavioral2/memory/4308-22-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4308-26-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4308-30-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4308-29-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4308-28-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4308-27-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4308-25-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4308-23-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4308-24-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4308-31-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-36-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-38-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-41-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-43-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-42-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-40-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-37-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-39-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-44-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/4544-46-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/3800-54-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/3800-57-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/3800-61-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/3800-60-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/3800-58-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/3800-59-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/3800-56-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/3800-55-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida
behavioral2/memory/3800-63-0x0000000000900000-0x0000000000DFC000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

explorku.exeexplorku.exeae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Drops file in Windows directory 1 IoCs

Processes:

ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe

description ioc process

File created C:\Windows\Tasks\explorku.job ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe

description	pid	process	target process
PID 552 wrote to memory of 4308	552	ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe	explorku.exe
PID 552 wrote to memory of 4308	552	ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe	explorku.exe
PID 552 wrote to memory of 4308	552	ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe
"C:\Users\Admin\AppData\Local\Temp\ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:552
- C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
  "C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Checks whether UAC is enabled
  PID:4308

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:4544

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:3800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1.6MB

MD5
3e998278d93e45e1b586428f825920d4

SHA1
2f4e5a9b6692d24ce4b8832e64ee9fe94e61663f

SHA256
ae87b6178112a33783ad832f7ed01b3543a53b201372e1b9ae350cca73b9b857

SHA512
e3f143ea0fadc62a5f00e805b56ef31afb62cdfafbf839fa821215bf6d04a943ab59650d288bddb92984b6dac6f0fe9e0039d531e241e0bd0eba5b2d1874d961

Download Submit
memory/552-21-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/552-2-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/552-0-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/552-5-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/552-8-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/552-7-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/552-6-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/552-4-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/552-3-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/552-1-0x0000000000720000-0x0000000000C1C000-memory.dmp

Filesize
5.0MB

Download
memory/3800-54-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/3800-63-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/3800-56-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/3800-59-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/3800-58-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/3800-60-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/3800-61-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/3800-57-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/3800-55-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-31-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-24-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-22-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-26-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-30-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-29-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-28-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-27-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-25-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4308-23-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-42-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-46-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-44-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-39-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-37-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-40-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-36-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-43-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-41-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download
memory/4544-38-0x0000000000900000-0x0000000000DFC000-memory.dmp

Filesize
5.0MB

Download