amadey | bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617

General

Target

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe
Size

1.7MB
MD5

5ac5ced5554adbe536fbb60941a223a4
SHA1

827c45b3f75f5f68a731131a1fd5cd84fd405422
SHA256

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617
SHA512

51fad9dd9fc4ba565a8987658ff732ce8a865fed5727e90d17dcd865a38ba682cc95fa5bb923b15e8e1ead85256fc684c76cc8fdbbcc668f11d01fc8433b2829
SSDEEP

49152:U80oFPFvQX7VJSSLcz6kTk/8ih5JH5mjZEsPU0M+:108PFvoVUSUrk/8YsEd+

Score

10^/10

amadey 18befc evasion themida trojan

Malware Config

Extracted

Family

amadey

Version

4.20

Botnet

18befc

C2

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.exebffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.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:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.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

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:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

808 explorku.exe
3032 explorku.exe
3104 explorku.exe

pid	process
808	explorku.exe
3032	explorku.exe
3104	explorku.exe

Themida packer 37 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4624-0-0x0000000000300000-0x0000000000854000-memory.dmp	themida
behavioral2/memory/4624-3-0x0000000000300000-0x0000000000854000-memory.dmp	themida
behavioral2/memory/4624-2-0x0000000000300000-0x0000000000854000-memory.dmp	themida
behavioral2/memory/4624-1-0x0000000000300000-0x0000000000854000-memory.dmp	themida
behavioral2/memory/4624-6-0x0000000000300000-0x0000000000854000-memory.dmp	themida
behavioral2/memory/4624-5-0x0000000000300000-0x0000000000854000-memory.dmp	themida
behavioral2/memory/4624-4-0x0000000000300000-0x0000000000854000-memory.dmp	themida
behavioral2/memory/4624-7-0x0000000000300000-0x0000000000854000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/4624-20-0x0000000000300000-0x0000000000854000-memory.dmp	themida
behavioral2/memory/808-22-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/808-25-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/808-26-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/808-28-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/808-27-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/808-24-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/808-23-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/808-21-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/808-29-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3032-34-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3032-35-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3032-36-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3032-37-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3032-40-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3032-38-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3032-41-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3032-39-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3032-42-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3104-52-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3104-56-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3104-57-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3104-55-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3104-54-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3104-53-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3104-51-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3104-50-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida
behavioral2/memory/3104-59-0x0000000000C60000-0x00000000011B4000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.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:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

description ioc process

File created C:\Windows\Tasks\explorku.job bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.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	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

description	pid	process	target process
PID 4624 wrote to memory of 808	4624	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe	explorku.exe
PID 4624 wrote to memory of 808	4624	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe	explorku.exe
PID 4624 wrote to memory of 808	4624	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe
"C:\Users\Admin\AppData\Local\Temp\bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.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 WriteProcessMemory
PID:4624

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:808

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:3032

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:3104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
Filesize
1.7MB

MD5
5ac5ced5554adbe536fbb60941a223a4

SHA1
827c45b3f75f5f68a731131a1fd5cd84fd405422

SHA256
bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617

SHA512
51fad9dd9fc4ba565a8987658ff732ce8a865fed5727e90d17dcd865a38ba682cc95fa5bb923b15e8e1ead85256fc684c76cc8fdbbcc668f11d01fc8433b2829

Download Submit
memory/808-22-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/808-29-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/808-21-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/808-23-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/808-24-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/808-27-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/808-28-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/808-26-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/808-25-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3032-42-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3032-34-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3032-39-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3032-41-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3032-38-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3032-40-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3032-37-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3032-36-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3032-35-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3104-56-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3104-54-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3104-59-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3104-50-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3104-51-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3104-53-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3104-55-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3104-57-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/3104-52-0x0000000000C60000-0x00000000011B4000-memory.dmp

Filesize
5.3MB

Download
memory/4624-0-0x0000000000300000-0x0000000000854000-memory.dmp

Filesize
5.3MB

Download
memory/4624-20-0x0000000000300000-0x0000000000854000-memory.dmp

Filesize
5.3MB

Download
memory/4624-7-0x0000000000300000-0x0000000000854000-memory.dmp

Filesize
5.3MB

Download
memory/4624-4-0x0000000000300000-0x0000000000854000-memory.dmp

Filesize
5.3MB

Download
memory/4624-3-0x0000000000300000-0x0000000000854000-memory.dmp

Filesize
5.3MB

Download
memory/4624-5-0x0000000000300000-0x0000000000854000-memory.dmp

Filesize
5.3MB

Download
memory/4624-6-0x0000000000300000-0x0000000000854000-memory.dmp

Filesize
5.3MB

Download
memory/4624-1-0x0000000000300000-0x0000000000854000-memory.dmp

Filesize
5.3MB

Download
memory/4624-2-0x0000000000300000-0x0000000000854000-memory.dmp

Filesize
5.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads