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 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exeexplorku.exe

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

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.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

Executes dropped EXE 1 IoCs

Processes:

explorku.exe

pid process

2732 explorku.exe
Loads dropped DLL 1 IoCs

Processes:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

pid process

2388 bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

pid	process
2732	explorku.exe

pid	process
2388	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

Themida packer 19 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2388-3-0x00000000000E0000-0x0000000000634000-memory.dmp	themida
behavioral1/memory/2388-2-0x00000000000E0000-0x0000000000634000-memory.dmp	themida
behavioral1/memory/2388-0-0x00000000000E0000-0x0000000000634000-memory.dmp	themida
behavioral1/memory/2388-1-0x00000000000E0000-0x0000000000634000-memory.dmp	themida
behavioral1/memory/2388-4-0x00000000000E0000-0x0000000000634000-memory.dmp	themida
behavioral1/memory/2388-6-0x00000000000E0000-0x0000000000634000-memory.dmp	themida
behavioral1/memory/2388-7-0x00000000000E0000-0x0000000000634000-memory.dmp	themida
behavioral1/memory/2388-5-0x00000000000E0000-0x0000000000634000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/2388-19-0x00000000000E0000-0x0000000000634000-memory.dmp	themida
behavioral1/memory/2732-21-0x0000000001290000-0x00000000017E4000-memory.dmp	themida
behavioral1/memory/2732-22-0x0000000001290000-0x00000000017E4000-memory.dmp	themida
behavioral1/memory/2732-27-0x0000000001290000-0x00000000017E4000-memory.dmp	themida
behavioral1/memory/2732-25-0x0000000001290000-0x00000000017E4000-memory.dmp	themida
behavioral1/memory/2732-23-0x0000000001290000-0x00000000017E4000-memory.dmp	themida
behavioral1/memory/2732-20-0x0000000001290000-0x00000000017E4000-memory.dmp	themida
behavioral1/memory/2732-24-0x0000000001290000-0x00000000017E4000-memory.dmp	themida
behavioral1/memory/2732-26-0x0000000001290000-0x00000000017E4000-memory.dmp	themida
behavioral1/memory/2732-29-0x0000000001290000-0x00000000017E4000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.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

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
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

pid process

2388 bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

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

pid	process
2388	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe

description	pid	process	target process
PID 2388 wrote to memory of 2732	2388	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe	explorku.exe
PID 2388 wrote to memory of 2732	2388	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe	explorku.exe
PID 2388 wrote to memory of 2732	2388	bffd6e6778b779267420d8ba305d56029e4bf9c0b7e4c8b5a0f6a58643778617.exe	explorku.exe
PID 2388 wrote to memory of 2732	2388	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
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2388

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:2732

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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/2388-19-0x00000000000E0000-0x0000000000634000-memory.dmp

Filesize
5.3MB

Download
memory/2388-3-0x00000000000E0000-0x0000000000634000-memory.dmp

Filesize
5.3MB

Download
memory/2388-2-0x00000000000E0000-0x0000000000634000-memory.dmp

Filesize
5.3MB

Download
memory/2388-4-0x00000000000E0000-0x0000000000634000-memory.dmp

Filesize
5.3MB

Download
memory/2388-6-0x00000000000E0000-0x0000000000634000-memory.dmp

Filesize
5.3MB

Download
memory/2388-7-0x00000000000E0000-0x0000000000634000-memory.dmp

Filesize
5.3MB

Download
memory/2388-5-0x00000000000E0000-0x0000000000634000-memory.dmp

Filesize
5.3MB

Download
memory/2388-9-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/2388-1-0x00000000000E0000-0x0000000000634000-memory.dmp

Filesize
5.3MB

Download
memory/2388-0-0x00000000000E0000-0x0000000000634000-memory.dmp

Filesize
5.3MB

Download
memory/2732-29-0x0000000001290000-0x00000000017E4000-memory.dmp

Filesize
5.3MB

Download
memory/2732-21-0x0000000001290000-0x00000000017E4000-memory.dmp

Filesize
5.3MB

Download
memory/2732-27-0x0000000001290000-0x00000000017E4000-memory.dmp

Filesize
5.3MB

Download
memory/2732-25-0x0000000001290000-0x00000000017E4000-memory.dmp

Filesize
5.3MB

Download
memory/2732-23-0x0000000001290000-0x00000000017E4000-memory.dmp

Filesize
5.3MB

Download
memory/2732-20-0x0000000001290000-0x00000000017E4000-memory.dmp

Filesize
5.3MB

Download
memory/2732-24-0x0000000001290000-0x00000000017E4000-memory.dmp

Filesize
5.3MB

Download
memory/2732-26-0x0000000001290000-0x00000000017E4000-memory.dmp

Filesize
5.3MB

Download
memory/2732-22-0x0000000001290000-0x00000000017E4000-memory.dmp

Filesize
5.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads