amadey | 8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85

Analysis

max time kernel
153s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 20:35

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General

Target

8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe
Size

1.5MB
MD5

8581e5e4ae637dd59fc3abc0acdbcd52
SHA1

2996517e9d5c65dc1f71af464b63495921d0713d
SHA256

8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85
SHA512

647e13e1a6befd67a4ade265ee037362a34d93ee89ac5d9e4f796ce59308c138ac3fdd2820e0f387cef8a47a27be696ef312b903ace25bb922806b067952a5c7
SSDEEP

24576:4nze2JrAL+5o43HGm2RDiyVG8mo34EuYNcK5H6valfaW/p0UVvcVXZix:ce235f+0yVSIa5whaxUqVi

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.exe8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.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.exeexplorku.exe8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.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	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

3180 explorku.exe
2624 explorku.exe
964 explorku.exe

pid	process
3180	explorku.exe
2624	explorku.exe
964	explorku.exe

Themida packer 40 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/3672-0-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-1-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-3-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-4-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-2-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-5-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-8-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-7-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-6-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-9-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3672-11-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/3180-25-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/3180-24-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/3180-30-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/3180-31-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/3180-29-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/3180-28-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/3672-27-0x0000000000CC0000-0x000000000119E000-memory.dmp	themida
behavioral1/memory/3180-26-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/3180-23-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/3180-32-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/3180-33-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/2624-36-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/2624-37-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/2624-42-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/2624-43-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/2624-41-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/2624-39-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/2624-40-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/2624-38-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/2624-45-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/964-53-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/964-54-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/964-55-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/964-57-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/964-56-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/964-58-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/964-59-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida
behavioral1/memory/964-61-0x0000000000710000-0x0000000000BEE000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.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:

8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe

description ioc process

File created C:\Windows\Tasks\explorku.job 8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe

pid process

3672 8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe

pid	process
3672	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe

description	pid	process	target process
PID 3672 wrote to memory of 3180	3672	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe	explorku.exe
PID 3672 wrote to memory of 3180	3672	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe	explorku.exe
PID 3672 wrote to memory of 3180	3672	8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe
"C:\Users\Admin\AppData\Local\Temp\8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3672
- 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:3180

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=4164 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:8
1⤵
PID:1244

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:2624

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:964

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
1.5MB

MD5
8581e5e4ae637dd59fc3abc0acdbcd52

SHA1
2996517e9d5c65dc1f71af464b63495921d0713d

SHA256
8f53811c1d4a72d6a8e0aa9014a2465ccace71b1f087de4f9ddf7470a7fa3c85

SHA512
647e13e1a6befd67a4ade265ee037362a34d93ee89ac5d9e4f796ce59308c138ac3fdd2820e0f387cef8a47a27be696ef312b903ace25bb922806b067952a5c7

Download Submit
memory/964-53-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/964-57-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/964-59-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/964-56-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/964-58-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/964-55-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/964-54-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/964-61-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/2624-38-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/2624-45-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/2624-36-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/2624-40-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/2624-39-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/2624-41-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/2624-43-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/2624-42-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/2624-37-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-23-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-25-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-26-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-32-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-33-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-24-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-28-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-29-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-31-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3180-30-0x0000000000710000-0x0000000000BEE000-memory.dmp

Filesize
4.9MB

Download
memory/3672-27-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-0-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-11-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-9-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-6-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-7-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-8-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-5-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-2-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-4-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-3-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download
memory/3672-1-0x0000000000CC0000-0x000000000119E000-memory.dmp

Filesize
4.9MB

Download