amadey | f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4

General

Target

f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe
Size

1.7MB
MD5

cdf8f9f30f7d9d67e53083d1c117d4b7
SHA1

a11f45d3efec0c641c06f5551251fb830140eda6
SHA256

f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4
SHA512

7a4a37c0e0566d52d841a86408cf806e97f09934d56bc6d9c47a76505643917aa4138a4d4af01dea36d0cb06120561b507ab9af14f8aab959e3a4b688b0052e0
SSDEEP

49152:tB50i1Rv7p4u5hL/f36Gf20j0zrv1yPlfs8pVbXb2PRNTuPw9Hy:VDWuH//6GfdjMc1s8DXb25Nhy

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:

f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.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:

explorku.exeexplorku.exef35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.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	f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.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

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:

f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

4344 explorku.exe
3920 explorku.exe
4692 explorku.exe

pid	process
4344	explorku.exe
3920	explorku.exe
4692	explorku.exe

Themida packer 38 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1344-0-0x0000000000320000-0x0000000000872000-memory.dmp	themida
behavioral1/memory/1344-2-0x0000000000320000-0x0000000000872000-memory.dmp	themida
behavioral1/memory/1344-3-0x0000000000320000-0x0000000000872000-memory.dmp	themida
behavioral1/memory/1344-1-0x0000000000320000-0x0000000000872000-memory.dmp	themida
behavioral1/memory/1344-4-0x0000000000320000-0x0000000000872000-memory.dmp	themida
behavioral1/memory/1344-6-0x0000000000320000-0x0000000000872000-memory.dmp	themida
behavioral1/memory/1344-5-0x0000000000320000-0x0000000000872000-memory.dmp	themida
behavioral1/memory/1344-7-0x0000000000320000-0x0000000000872000-memory.dmp	themida
behavioral1/memory/1344-8-0x0000000000320000-0x0000000000872000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/4344-25-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4344-26-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4344-29-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4344-28-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4344-27-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4344-23-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4344-22-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4344-24-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/1344-21-0x0000000000320000-0x0000000000872000-memory.dmp	themida
behavioral1/memory/4344-30-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4344-31-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/3920-37-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/3920-42-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/3920-44-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/3920-43-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/3920-41-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/3920-40-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/3920-39-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/3920-38-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/3920-46-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4692-55-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4692-58-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4692-60-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4692-59-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4692-57-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4692-56-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4692-54-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida
behavioral1/memory/4692-62-0x0000000000A60000-0x0000000000FB2000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.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:

f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe

description ioc process

File created C:\Windows\Tasks\explorku.job f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.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	f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe

description	pid	process	target process
PID 1344 wrote to memory of 4344	1344	f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe	explorku.exe
PID 1344 wrote to memory of 4344	1344	f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe	explorku.exe
PID 1344 wrote to memory of 4344	1344	f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.exe
"C:\Users\Admin\AppData\Local\Temp\f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4.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:1344

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:4344

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:3920

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:4692

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

3

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

4

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
cdf8f9f30f7d9d67e53083d1c117d4b7

SHA1
a11f45d3efec0c641c06f5551251fb830140eda6

SHA256
f35e9a57d2f134f03620019d86cb03e18651b73bb012ddbe522dbfe93ad847d4

SHA512
7a4a37c0e0566d52d841a86408cf806e97f09934d56bc6d9c47a76505643917aa4138a4d4af01dea36d0cb06120561b507ab9af14f8aab959e3a4b688b0052e0

Download Submit
memory/1344-21-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/1344-3-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/1344-1-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/1344-4-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/1344-6-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/1344-5-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/1344-7-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/1344-8-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/1344-2-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/1344-0-0x0000000000320000-0x0000000000872000-memory.dmp

Filesize
5.3MB

Download
memory/3920-38-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/3920-39-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/3920-40-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/3920-41-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/3920-43-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/3920-44-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/3920-37-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/3920-42-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/3920-46-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-26-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-30-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-24-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-22-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-23-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-27-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-28-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-29-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-25-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4344-31-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4692-55-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4692-58-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4692-60-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4692-59-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4692-57-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4692-56-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4692-54-0x0000000000A60000-0x0000000000FB2000-memory.dmp

Filesize
5.3MB

Download
memory/4692-62-0x0000000000A60000-0x0000000000FB2000-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