amadey | b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6

General

Target

b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe
Size

1.6MB
MD5

9c5c42820ff716a28ae7b73eb45542da
SHA1

5a445d5da740bb2cfe4b591a5c34ef5b9c9338f5
SHA256

b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6
SHA512

1e81b79678bf65633fddd6b8605ffbe97b305e5374dde1c7641e204685b73d9f0fe2576518ed7cedb21b24b2f2603bb5c5c7ea2210269cb04bf30b6709ce0966
SSDEEP

49152:moqB/kUKXw0rzzickPQzaMOGcm1aZoJJdusHuQWK8tm:mgFw0rKcCQzDBJdLNWKb

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.exeexplorku.exeb7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exeexplorku.exe

description	ioc	process
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__	b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.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.exeb7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.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	b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.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:

b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe

Executes dropped EXE 3 IoCs

Processes:

explorku.exeexplorku.exeexplorku.exe

pid process

792 explorku.exe
3976 explorku.exe
3772 explorku.exe

pid	process
792	explorku.exe
3976	explorku.exe
3772	explorku.exe

Themida packer 36 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2476-1-0x0000000000940000-0x0000000000E79000-memory.dmp	themida
behavioral1/memory/2476-6-0x0000000000940000-0x0000000000E79000-memory.dmp	themida
behavioral1/memory/2476-5-0x0000000000940000-0x0000000000E79000-memory.dmp	themida
behavioral1/memory/2476-2-0x0000000000940000-0x0000000000E79000-memory.dmp	themida
behavioral1/memory/2476-3-0x0000000000940000-0x0000000000E79000-memory.dmp	themida
behavioral1/memory/2476-4-0x0000000000940000-0x0000000000E79000-memory.dmp	themida
behavioral1/memory/2476-0-0x0000000000940000-0x0000000000E79000-memory.dmp	themida
behavioral1/memory/2476-7-0x0000000000940000-0x0000000000E79000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/2476-20-0x0000000000940000-0x0000000000E79000-memory.dmp	themida
behavioral1/memory/792-21-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/792-25-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/792-28-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/792-27-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/792-26-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/792-24-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/792-23-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/792-22-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/792-29-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3976-35-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3976-36-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3976-40-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3976-42-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3976-41-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3976-39-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3976-38-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3976-37-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3976-44-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3772-53-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3772-56-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3772-57-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3772-55-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3772-54-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3772-52-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3772-58-0x0000000000410000-0x0000000000949000-memory.dmp	themida
behavioral1/memory/3772-59-0x0000000000410000-0x0000000000949000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 4 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exeexplorku.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.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:

b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe

description ioc process

File created C:\Windows\Tasks\explorku.job b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.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	b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe

description	pid	process	target process
PID 2476 wrote to memory of 792	2476	b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe	explorku.exe
PID 2476 wrote to memory of 792	2476	b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe	explorku.exe
PID 2476 wrote to memory of 792	2476	b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe	explorku.exe

C:\Users\Admin\AppData\Local\Temp\b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.exe
"C:\Users\Admin\AppData\Local\Temp\b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6.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:2476

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:792

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:3976

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:3772

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
1.6MB

MD5
9c5c42820ff716a28ae7b73eb45542da

SHA1
5a445d5da740bb2cfe4b591a5c34ef5b9c9338f5

SHA256
b7dc9ceabfde801f8a1c25c2020c1eff2e4cdadbd7d0b183de201dca76b894e6

SHA512
1e81b79678bf65633fddd6b8605ffbe97b305e5374dde1c7641e204685b73d9f0fe2576518ed7cedb21b24b2f2603bb5c5c7ea2210269cb04bf30b6709ce0966

Download Submit
memory/792-21-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/792-29-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/792-22-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/792-23-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/792-24-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/792-26-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/792-27-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/792-28-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/792-25-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/2476-20-0x0000000000940000-0x0000000000E79000-memory.dmp

Filesize
5.2MB

Download
memory/2476-1-0x0000000000940000-0x0000000000E79000-memory.dmp

Filesize
5.2MB

Download
memory/2476-7-0x0000000000940000-0x0000000000E79000-memory.dmp

Filesize
5.2MB

Download
memory/2476-0-0x0000000000940000-0x0000000000E79000-memory.dmp

Filesize
5.2MB

Download
memory/2476-4-0x0000000000940000-0x0000000000E79000-memory.dmp

Filesize
5.2MB

Download
memory/2476-3-0x0000000000940000-0x0000000000E79000-memory.dmp

Filesize
5.2MB

Download
memory/2476-2-0x0000000000940000-0x0000000000E79000-memory.dmp

Filesize
5.2MB

Download
memory/2476-5-0x0000000000940000-0x0000000000E79000-memory.dmp

Filesize
5.2MB

Download
memory/2476-6-0x0000000000940000-0x0000000000E79000-memory.dmp

Filesize
5.2MB

Download
memory/3772-56-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3772-54-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3772-59-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3772-58-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3772-52-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3772-55-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3772-57-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3772-53-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3976-44-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3976-37-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3976-35-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3976-38-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3976-39-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3976-36-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3976-41-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3976-42-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download
memory/3976-40-0x0000000000410000-0x0000000000949000-memory.dmp

Filesize
5.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads