amadey | 43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a

Analysis

max time kernel
144s
max time network
95s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
23-05-2024 02:49

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General

Target

43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exe
Size

1.6MB
MD5

df47d994fce83c0dd101e4f4b93e4324
SHA1

2be4f18a386faf34d177031dbb97ef0f46a07808
SHA256

43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a
SHA512

e3733b2933d1aeca3e3c0408c059f0e6a43d8b094f2d2a125d3694cf598898648b548ccddfd11df4241406895b70f9eb1c80ed8458d61bd0463243807bf2c6f9
SSDEEP

49152:qvU/FGTwxegEqJVyUKvuurqiRpicFGEOId/gNddaVtXX:qvUtS6EqJVhQtpicFPJRgZaVNX

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:

explorku.exe43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.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:

explorku.exeexplorku.exe43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exeexplorku.exe

description	ioc	process
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	43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.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

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

2360 explorku.exe
2356 explorku.exe
4092 explorku.exe

pid	process
2360	explorku.exe
2356	explorku.exe
4092	explorku.exe

Themida packer 39 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/5104-1-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
behavioral2/memory/5104-3-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
behavioral2/memory/5104-2-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
behavioral2/memory/5104-0-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
behavioral2/memory/5104-6-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
behavioral2/memory/5104-7-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
behavioral2/memory/5104-5-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
behavioral2/memory/5104-8-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
behavioral2/memory/5104-4-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/5104-21-0x0000000000940000-0x0000000000E43000-memory.dmp	themida
behavioral2/memory/2360-22-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2360-25-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2360-28-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2360-29-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2360-23-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2360-27-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2360-26-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2360-24-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2360-30-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2360-31-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-36-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-37-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-42-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-44-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-43-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-41-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-40-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-39-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-38-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/2356-46-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/4092-54-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/4092-56-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/4092-60-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/4092-59-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/4092-58-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/4092-55-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/4092-57-0x0000000000B90000-0x0000000001093000-memory.dmp	themida
behavioral2/memory/4092-61-0x0000000000B90000-0x0000000001093000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.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	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Drops file in Windows directory 1 IoCs

Processes:

43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exe

description ioc process

File created C:\Windows\Tasks\explorku.job 43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.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	43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exe

description	pid	process	target process
PID 5104 wrote to memory of 2360	5104	43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exe	explorku.exe
PID 5104 wrote to memory of 2360	5104	43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exe	explorku.exe
PID 5104 wrote to memory of 2360	5104	43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.exe
"C:\Users\Admin\AppData\Local\Temp\43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a.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:5104
- 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:2360

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:2356

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:4092

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
df47d994fce83c0dd101e4f4b93e4324

SHA1
2be4f18a386faf34d177031dbb97ef0f46a07808

SHA256
43ad090293fea7ef765086bbcc0bada4975fdf8afa8eb155d665863aa842d06a

SHA512
e3733b2933d1aeca3e3c0408c059f0e6a43d8b094f2d2a125d3694cf598898648b548ccddfd11df4241406895b70f9eb1c80ed8458d61bd0463243807bf2c6f9

Download Submit
memory/2356-40-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2356-41-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2356-46-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2356-38-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2356-39-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2356-36-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2356-43-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2356-44-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2356-42-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2356-37-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-22-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-25-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-28-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-29-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-23-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-27-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-26-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-24-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-30-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/2360-31-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/4092-57-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/4092-55-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/4092-61-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/4092-54-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/4092-58-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/4092-59-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/4092-60-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/4092-56-0x0000000000B90000-0x0000000001093000-memory.dmp

Filesize
5.0MB

Download
memory/5104-4-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download
memory/5104-0-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download
memory/5104-6-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download
memory/5104-7-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download
memory/5104-1-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download
memory/5104-5-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download
memory/5104-8-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download
memory/5104-21-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download
memory/5104-2-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download
memory/5104-3-0x0000000000940000-0x0000000000E43000-memory.dmp

Filesize
5.0MB

Download